Opa1612 vs opa2134. 0003%); OPA2604: high slew rate(25v/us, 2134 is 20V/us), high bandwidth(20M, 2134 is 8M) In Active Xover, there are input buffer, filter, output with gain changing. 000015% at 1 kHz. The V6 Vivid has a faster attack than the classic, but still not quite as fast as the SS360x which allows the SS360x to wring out just slightly more detail than the Vivids. Best Regards, XXXXXX. Part Number: OPA1656. 5. I was wondering if the OPA2604's could be replace with a dual opamp like the OPA1612 with similar or hopefully better results than the OPA627's Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. 75 mA of the OPA1688, but it's 5 times more expensive and the package is 10VSON which is nearly impossible for DIY work. That seemed The LME49720 is pin for pin compatible for the OPA2134, the OPA's have the typical laid back Burr Brown sound. The THD+N of the 1688 should be better too, best I can tell comparing the datasheet graphs vs. Though we did not test it before but we believe OPA1612 is a better choice. The OPA169x operational amplifiers achieve a new level of performance for low-power amplifiers with a low 4. My statements were verified: - OPA1611/1612 are optimized for better distortion than the OPA211 (already pretty good). In other words, OPAx132PA and OPAx132UA (standard grades) are equivalent to OPAx134, which does NOT have a high grade. Only really better substitution for NJM4580 for example as Pre-Amp can be no less then OPA2228 or even better OPA1612, but for that -3dB less noise (and distortion) over whole audio spectrum you will have to play premium extra. Though we did not test it before but we believe The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Hot Search. He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. New posts Search forums. " OPA2604, OPA2134 and better parts like the OPA2827 are ok. So, it is a different design and chip. So I can use any one of these ( one at a time !). (€20 DAC) vs a Topping E30 II (150€) vs the internal DAC on a Marantz CD-Player. OPA6x7 Precision, High-Speed JFET Operational Amplifiers 1 Features • Very low noise: 4. Amir, if you want an lme49720 op-amp or two let me know and I will mail them to you. The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on xslavic. NE5532 is a very good amplifier especially for the price ($0. - high levels of DC precision are generally not required by audio customers (audio equipment makers). This feature, in combination with high output drive capability and excellent The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. the LM4562/LME49720 and the OPA2134. 当我们使用opa1612将差异输入转换 为单端输出时， 输出会失真，请帮助检查原因。 下图是“Sch”，失真的波形附加了音频。 此外，当我们使用opa2134或lm4562来替换opa1612时，失真 消失了。 SMSL SU-10 vs M500 MKIII vs DO300 21 vs 9 vs 11 dual op-amps OPA1612 (accoring to the spec from smsl-audio) What is the Op-amps doing in that? M500 SINAD Reviews. 1 nA/ IOS Input offset Audio op amp comparison NE5534A vs. Hi janusz, Looking at the data sheet of the 2132 vs 2134, it would seem that the noise curves are identical. Hello samsagaz-I am sure that everyone here will agree that the "specs" often given for various IC op-amps might help differentiate between the possible performance of one chip vs. Review Index. When the analog IC houses were in their prime, and I was working for a major customer (Harris) I remember receiving notices of pending die shrinks, which detailed changes in non-data-sheet parameters, or shifts in drift vs temperature –40 °C≤TA 85 0. I can't put it much differently. I found that OPA1612 was in the ultimate soundplus collection that's why i have change for it. Sound is more "color", and "massive". I have used the OPA2134 as the first gain stage in a TI's OPA1612 is industry's highest-performance dual-channel, bipolar-input audio amp for apps such as pro audio/broadcast studio equipment, microphone pre-am The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. This feature, in combination with high output drive capability and excellent OPA1602はOPA1612より1mA少ない OPA1602はUnity Gainでの安定度が高い。 OPA1612はOPA1602よりも安定度が悪いのでゲイン1以上で使ったほうがよさそう。 容量性負荷の場合，OPA1612はCfが必要。OPA1602にOPA1612と同じCfを取り付けると容量負荷でもオーバーシュートが出ない。 What about the LM4562/LME49720 vs LME49860? Click to expand I have 3x LME49860NA in my Prodigy HD2 and find it sounds very good, a balance of resolution and musicality. i tryed lme49722 opa2134 and opa1612 , --. The OPA 627 is well over price and is bass heavy and it’s not worth the price you pay for it The OPA1612 and OPA827 are much AIYIMA A07 TPA3255 Amplifier Measurements and Review - LM4562 (and OPA2134) option. Pin can be left floating or connected to any voltage between (V–) The OPA2134 is a low-noise, ultra-low-distortion operational amplifier designed specifically for audio applications. New posts Latest activity. 5nV/√Hz at 10kHz • Fast settling time: – OPA627: 550ns to 0. 14 in) the V6 are the smallest discrete op-amps in the world. Although I am a fan of the OPA2134, I still have very considerable respect for the NE5532. Not a fan of the OPA2134 personally - it is like Part Number: OPA1612 请问如何设计才能达到符合预期的THD+N性能指标？避免以低性能运行？ 一、比如用在一个10倍放大的线路中，作为正相放大，正相输入端可以悬空接信号输入还是需要并联电阻接地？需要的话电阻取值多大合适，反馈电阻和反相端接地电阻取多大比较合适？ opa2134：纵向声场宽广，低频下潜不错，量感一般，高频解析力好，但是有一点毛剌，不够柔和。推荐度：★★★☆ opa2111：中频非常舒服，高频柔和，但低频比ad712还弱，声场很窄，没有传说中那么好。推荐度：★★☆ OPA2134 - another workhorse, very tolerant of poor circuits, etc. OPA1612) - quite popular in higher end consumer devices - largely alternatives for the OPA2134? Home. I couldn't tell the difference between the Just found a space to test AIYIMA A07 with OPA2134 opamp. when we use opa1612 to translate difference input to single-ended output, the output is distorted, pls. When the original OP is Bipolar(like NE5532 etc) we can most always replace with FET or another similar Bipolar OP. Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, Comparison LM4562 vs OPA2134 vs NJM2068 vs NJM4556 LM4562: Strong bass . There may be technical reasons for that- the OPA2134, if I remember correctly, has higher noise, lower DC gain, lower 5. embrown057 Active Member. Post THD+Noise vs Frequency 3 Description The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. (Opa2134 is not broken in at all, so it will most likely get better w/time) The base is much better from the 2134, but it does not seem to be as powerful on the output side, but could just be the break-in needed. I hear OPA828 is the new version of the OPA627, so I may try that one out. . High and low extension is not only better but more controlled. help to check the reason. One other very The OPA2134 is very ordinary, I consider it a side step to the NE5532. It has OPA2604 buffer amps that many have replaced with dual OPA627BP's with good results. Burson V5i-D and Muses02 are very good But balanced sound not heavy bass. Might be interesting to do op-amp comparisons in the future on various products (the FX Audio DAC-X6 is also Other Parts Discussed in Thread: OPA1612, LMV1032, LMV1012, OPA2134. DIY (Do-It-Yourself) Discussions. I also need to check out the OPA1688 as a general-purpose small-signal and line-level dual opamp as an alternative to OPA2134, LM4562, etc. As mentioned previously the OPA2134 in BIFET is a decent performer. If possible, you could try all of the three op-amps from above without getting worried to get oscillations. 2002-12-18 4:47 am #1 2002-12-18 4:47 am ，功放DIY之用最贵的运放，OPA2134秒杀OPA2604和5532，来听听效果，5532p dy649 op275 opa2604 opa2211 人声韵味对比。 手机直录，百元diy解码器试听 5534+opa627+49710 建议带耳机试听，运算放大器OP AMP声音评测Audio Test | BB-2134 VS BB-2604 VS MUSES-8920【JunMan】 Background I do own/have owned discrete(ish) devices (R2R dacs, Sapphire discrete amp etc) and loved the analog sound out. Load was 1k but I'm planning on changing that to something easier like 2k and retesting NE5532 just for fun. OPA2134 it is an ideal for you in that configuration. the best sounding is OPA1612 ,not for driving headphones "OPA1612 is better than OPA2134. Similar to the size of a typical DIP8 opamp, the V5i is the easiest plug-in upgrade for any audio project. The OPA1662 (dual) and OPA1664 (quad) series of bipolar-input operational amplifiers achieve a low 3. I tried the 1656 in there but didn't feel it added anything. Joined 2011. Finally got around to some more comparison listening with the Sapphire headphone amplifier. 5mV vs 2mV, respectively). can be improved by placing output between +/- VS pins giving smaller loop area for output current I've also seen soic types with common connected feedback pins on both rows of the package, again allowing reduced loop area, parasitic inductance of the feedback divider The OPA1622 seems to have better drive capability at 145 mA vs. We are also using OPA2134 and a few others. com SBOS450C –JULY 2009–REVISED AUGUST 2014 5 Pin Configuration and Functions D Package OPA1611, SOIC-8 D Package (Top View) OPA1612, SOIC-8 (Top View) DRG Package OPA1612, SON-8 (Top View) (1) NC denotes no internal connection. LM4562 is similar to vs Burson V6 Vivid. OPA 1642 and the OPA 827. S. Depending on the actual application circuit, there are alternatives with better noise performance. Thread starter Tieftoener; Start date 2002-12-18 4:47 am; Status This old topic is closed. AskEngineers is a forum for questions about the technologies, standards, and processes used to design & build these systems, as well as for questions about the engineering profession and its many disciplines. As the TL072 is an op-amp with FET input stages, it is wildly different from the other op-amps that have BJT inputs. Opa1656 has good phase response at high frequency. I use these amplifiers for pro audio. These op amps supply low offset voltage, low drift over temperature, low bias current, and low noise with only 60-nV RMS 0. The OPA1642, SMT-only, is also a good dual BIFET. muses02 dual op amp. The dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded. 1-nV/√Hz noise density with an ultralow distortion of 0. 6SL7 tube SRPP gain stage with voltage shunt feedback. I also refurbish large format recording consoles. 4mm X 14. Sparkos vs muses02 vs some Bursons (v5i, vivid, etc). This op amps offer rail-to-rail output swing to within 200 mV of the power supplies with a 2-kΩ load, which increases headroom and maximizes dynamic range. Joined Jun 20, 2001 Posts 3,216 Likes 11. OPA134 Posted 10th February 2012 at 11:49 PM by rjm Updated 11th February 2012 at 03:48 AM by rjm. The OPA627 and OPA637 (OPA6x7) operational amplifiers (op amps) provide a new level of performance in a precision FET operational amplifier. georgehifi. A. muse electronics. To deliver improved sound quality and speed for exceptional audio performance, a real FET input stage is included. 魅族mx4pro运放芯片用的是1612，而xplay 3s用2604，不知道魅族能不能比vivo更屌呢？ 貌似老外们觉得2604比较好有助攻的么 OPA1612 与 OPA2604 对比？ 比較したのは高音質のもの限定で厳選した電圧帰還icのlme49990、opa627、muses8920、opa1612（opa211 についてはすでにテストしてあるものであっても高評価ではなくて、他にopa2604やopa2134なども世間での評価は高いですが、こちらの評価ではそれほど良くはあり Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. For gain: OPA209 but only against NE5534 and V6V singles. > OPA1612 > OPA2107 > OPA2111 According to the web site it is doc to use the OPA2134. Treble with a bit Warm . What's new. I use all of the Xduoo TA-20 inputs, the XLR input is the Topping D90 MQA, RCA1(AUX1) input is OPA1611（シングル）およびOPA1612（デュアル）バイポーラ 入力オペアンプは、0. 00006% at 1 kHz. They conveniently fit wherever they’re used. 4" plug). Would like to try Sparkos in the tube pre-amps too but In SMT the OPA1612, rated at 40V absolute maximum, is a very good part. Those are fine. 9 nV/√Hz at 10 kHz THD+N Ratio vs Measured Level / Inverting 6dB Gain / 100k load / 22. Reactions: Oneoff. Quiescent Current – In a It would have been nice to see how the OPA1612 and OPA1642 measure up but they only come in surface mount packages. I recommend the OPA2132/OPA2134. vintage high performance op-amps in the simple non-inverting pre-amplifier gain stage. TL072 works most of the time but I almost always find a better substitute in dirt pedals. Reason: Added link maybe modern production 3886 are all above average? the designs seem to take the 'typical' GBW spec as the effective minimum My guesstimate puts the safe with production variation margin local closed loop gain corner as low as 100kHz for LM3886 with a greater than 4:1 range designing for stable extra loop gain from the nice input op amp 2回路入り 一般的で汎用性があってコストパフォーマンスがよい）: opa2604 （ バーブラウン) オールfetはこれだけ: opa2134 （ バーブラウン ） オーディオの定番を目指して: lme49860 (ナショナルセミコンダク Listen to the V3 with different dual op-amps socketed and experience the changes in sound! The demonstrated op-amps include NE5532, JRC4580D, Sparkos SS3602, 7 mA quiescent current is typical of the OPA627, for the OPA2132 it should be typ. If you want a seriously good opamp check out the OPA1612. Dec 17, 2018 #3 OPA1612-Q1: 1Mb / 31P [Old version datasheet] SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifier Burr-Brown (TI) OPA134_071: 403Kb / 14P: High Performance AUDIO OPERATIONAL AMPLIFIERS OPA134: 432Kb / 14P: High Performance AUDIO OPERATIONAL AMPLIFIERS More results. 4kHz bandwidth Here we see that the LM4562, LM833, LM49720 and OPA2134 all have the same level of performance with the NJM2742 having the worst performance of the bunch and the LT1352 being just slightly worse. The outcome was no great surprise but the noise character of the OPA1612, which was exaggerated due to the current noise and inductive source impedance, was still The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. This may be the case with low frequency filters. OPA1656 is rather interesting for this, and if you like OPA2134 then you probably won't do any worse with OPA1642. I just thought using two opa627, i will achieve 2134's audio quality. Brown Burr on the Texas Instrument site and provided you are doing R&D not for military purposes, you can order the OPA1612, OPA1642 on SOIC devices free as SAMPLE for R&D and place them on an adaptor that converts from SOIC to dip 8. 2 μV/ PSRR Average input offset voltage shift vs power supply voltage ΔVS = 20V (3) 110 120 dB ISOCH-CH Channel-to-Channel isolation fIN = 1kHz fIN = 20kHz 118 112 dB IB Input bias current VCM = 0V 10 72 nA ΔIOS/ΔTe mp Input bias current drift vs temperature –40 °C≤TA 85 0. another in "ideal" situations, but often this is of absolutely no use once you actually start installing these devices in place of another one in a particular OPA1612 makes a decent headphone amplifier. Thread starter pma; Start date Jan 7, 2021; Now they seems to have changed again to opa1612 in many places - maybe a suggestion to try ? I have tried ne5532, opa2604, lm4562 and opa1612 and I prefered LM 4562 in both Aiyima a07 and You can see how the ESS DAC drives the OPA2134 op-amps that are soldered, providing current (I) to voltage (V) conversion. abechap024 Well-known member I think the OPA2134 is easily surpassed by the aforementioned AD8512 in all sonic aspects- more clarity, details, 最近オペアンプ交換が楽しくて色々試してみました。個人のメモを兼ねてレビューしてみます。環境は、CD取り込みからハイレゾ化まで手軽にできるCurioSoundを使用してCDから取り込んだデータを96kHz 24bitのflac形式で保存。 "安いのにすごいSHANLING M2sを買いました"で紹介したM2sからラインア 特点是低压特性很好，2. System: Equitech 1. , the DC offset at the TPA6120 output is around 2mV. We are also using 5 Specifications. Opa2134 is a very good opamp. At the risk of immediately coming across as exaggerated and/or hyped -- the "battle" was simply an epic slaughter! Many peeps If you can use a bipolar OP, the NE5532 is usually the better choice than a JFET OPA2132 / OPA2134. Find parameters, ordering and quality information. But deep bass and transients seem more punchy in the OPA2134. 8-nV/√ Hz noise density with an ultralow THD+N of –119. The The LM833 was released way more than 20 years ago, and if memory serves, OPA2134 was released around the year 2000, and LM4562 around 2006. 000015% at 1kHz. Part 1. 000015％という超低歪で1. TI’s OPA1678 is a Low distortion (-120 dB), low noise (4. 00 : Crosstalk - 110dB PSRR - 80dB min, typ 100dB Distortion - 0. However, I remember that the chip was about 3 times worse vs opa1612 regarding noise in I/U stage and even more noisy than opa1602 which draws 3x times less current. Anything other than these values and they're either fake or damaged (or both). 4. For this example, we are using the OPA1656 in a non-inverting configuration with a gain of 40 dB or 100V/V. the TI's LME49860, LME49720. Last edited: 2009-11-29 3:41 pm . The OPA6x7 are useful in a broad range of precision and high-speed analog circuitry. Last edited by mediatechnology; 30th November 2017 at 11:52 PM. With this buffer amplifier and the 5KOhm potentiometer turned to max. The OPAx132 is the slightly I'd go for an OPA1612 as an upgrade in virtually every circumstance. 8 mA, for the OPA2134 typ. I don't care about listening tests or something else, just want to use the technical better one in my amp. OPA2134PA – Audio Amplifier 2 Circuit 8-PDIP from Texas Instruments. OPA16xx (i. The voltage - OPA1611/OPA1612 (single and dual) Reply reply OPA2134, NE5532 etc. Jan 11, 2021 at 2:01 PM. Joined The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. 01% OPA2134 vs OPA2604 vs OPA2107. (Normally one would probably point to LM4562 as being the best compromise, but I think the Quiescent Current of 10mA is The one usually put forward as best is the opa2134 AD8620 OPA1612 OPA2827 Click to expand Hi, if your interested. When designing the Burson V5i, our goal was to create a product that was to manage. Excited to try them - I have a circuit I designed using an OPA2134, so I might use socket and then use a DIL8-SMD adaptor. lme49721. Suggest measure your supply voltage pin 4 or 8. There are plenty of photos and videos online that will help you with this, including the video from Sparkos’ YouTube channel. Thanks in advance. opa2604ap： 中低平衡，有点偏高音，但不是毛刺，而是解析好，确实有胆味，什么是胆味，个人觉得就是敲鸡蛋空壳的那种声音吧 阔阔阔的，反正中音就是有那么种音染，还真有点讨好听感呢，不是英国音箱那种厚成一片，低频不生硬，整体音色清晰，够高清，声音耐听，中性路线，中频又略带点音 Measuring 12. 2-nV/√ Hz noise density and distortion of –127 dB at 1 kHz. The OPA1612 has ultra low distortion, but more current noise than the existing MC33078. I would like to see these parts offered in a DIP package to replace the OPA2134PA. This is also AKM's recommended opamp in many AKM DAC's in both IV and LPF stages. Maybe slightly less extended but so so sweet. Other op amps you can try are AD823's but they can be a bit noisy when used at the inputs of a phono stage so I prefer them in the output stages. Member. Normal audio can use the I guess what puts me in a dilemma is that Burr Brown branding behind the well known OPA2134 vs. I primarily use iems and headphones and have done a fair share of opamp and tube rolling on dacs and amps. 06-18-2019 at opa2134系列是超低失真，低噪声运算放大器，为音频应用完全指定。本文介绍了opa2134引脚及特性，其次介绍了opa2134封装信息与绝对最大额定值，最后介绍了三款opa2134的应用电路。 For I/V: OPA1692 is best, compared to - OPA1612, OPA2192, OPA2209, OPA1652, NE5532, LME9720, OPA1622, OPA1602, OPA1662 For LP: OPA1692 for now, I have good expectations from OPA2209 but they are out of stock. opa2604 lme49720. In some respects I think of the LM4562 as a somewhat upgraded NE5532. Different opamps have differing decoupling requirements too, so that might need checking. Chris ps. I've replaced the old TL082 in my active crossover with opa2134. 5532 Curiously enough it seems to sound its best in combination with the OPA2134. The OPA1662 and OPA1664 series of op amps offer rail-to-rail output swing to within 600 mV with 2-kΩ load, which increases headroom and maximizes dynamic range. 5mm X 29mm (0. My favorites at the moment opa1642 and this one opa1656. These two OP amp has great impact on performance so we TI’s OPA1612 is a SoundPlus™ Audio Operational Amplifier with 1. That seemed like a reasonable target for the supply current of the OPA1656 as well. BurrBrown OPA2134 vs. ti. PC > Dynalo > AKG K701. Premier Sponsor Forums. What is LM4562. I may blow a few more but I've got boxes of TL0xx to play with. Pricing and Availability on millions of electronic components from Digi-Key Electronics. Home ; Categories ; - The LT opamp is expensive. I was previously compares this OPA1622 with the other op-amps such as OPA2134, OPA2604, AD823, AD712, LME49720NA, and LM4562 which none of them, in this headphone Explore our portfolio of audio op amps and deliver a superior audio experience to your customers. AD826 used instead of the the OPA2134. The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2. Pin can be left floating or connected to any voltage between (V–) The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. The OPA132, OPA2132, and OPA4132 (OPAx132) series of FET-input operational amplifiers provides high speed and excellent dc performance. BurrBrown OPA27 Home. pdf I made such an input buffer using an OPA2134 in non-inverting coupling and with a gain of two. The sound is much better but there's still something a bit "hi-fi" and "grey" in the presentation. Other Parts Discussed in Thread: OPA1612 , OPA2134 OPA1612手册第3页最后几行，Input Impedance栏：Differential 20KΩ || 8pF Common-Mode 10^9Ω || 2pF 对这个指标不是很明白，如果我用它做电压跟随 so I would use old school OPA2134 or LM4562. A true FET input stage is incorporated to provide excellent sound quality and speed for exceptional audio performance. The Muses 02 is just gorgeous, warm and sexy. Misc. The quad is available in 14-pin DIP These same values are suitable for FET input op amps such as the OPA2134, OPA2604 and a bipolar OPA1612 or FET OPA1642 on a surface mount to DIP adapter. As for OPA627 vs. OPA827. I should have done my research a bit better because because I overlooked OPA1612 which is purported to have superior performance compared to LM4562. Another way to say it: JFET OPamps like OPA2134 can I'd go for an OPA1612 as an upgrade in virtually every circumstance. The OPAx828 TI’s LME49720 is a 2-channel, 55-MHz, high-fidelity, high-performance, RRO audio op amp. lme49723. Reactions: Phorize, August and Evgeniy. But that does not say anything about the SQ. OPA2134 gain stage with voltage series feedback. Link to post here: Your Current DIY Project Pictorial I've previously checked, and I don't think there are any threads specifically about rolling op amps (plenty about tubes), so I figured I'd start one. OPA2134 is great for buffer and clean applications but I never liked it for overdrive/distortion. Thread starter Neruda; Start date Nov 22, 2001; Nov 22, 2001 at 2:39 AM Thread Starter Post #1 of 9 Neruda Banned Moderator. Here we can also see that the audio analyzer Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. TI OPA134 vs. As an engineer it's your choice to check which one is the most important. but those are a very good start i'm very much enjoying the sjorstrom discrete SMD diamond buffers though . Treble is extended without being sibilant or piercing. 2. The OPA1612 is nice as well. - opa1612(ti) : 同メーカーの1622と同じ傾向ですが、ほんのわずか歪っぽいかなあ。 0. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600mV with a 2k load, which increases headroom and maximizes dynamic range. Avoid LM4562/LME49720 and OPA2134/2604 if you do not want to re-engineering circuitry to make it stable. Thread starter mikeg88; Start date Apr 10, 2008; Apr 10, 2008 at 6:29 AM Thread Starter Post #1 of 2 mikeg88 Head-Fier. Inside CD/DVDs most manufacturer uses M4580 OP-Amps but when it change to I have an Onix XCD-99 which is basically a Music Hall CD-25. Find parameters, ordering and quality information OPA1612 is relatively new opamp and is widely used in several medium-priced but also high-priced DACs. Reply. Warm Mids (Deep and Full) . over operating free-air temperature range (unless otherwise noted) (1) MIN MAX UNIT V. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, ••• VIN(DIFF) Differential input voltage ±VS V IO Output short-circuit(3) Continuous TA Operating temperature –55 125 °C TJ Junction temperature –65 150 °C Tstg Storage temperature –65 150 °C (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. OPA2134 and NE5532 both have power supply currents of about 4mA per channel, and have been widely adopted in the market (understatement). At >$6 each it's not cheap, but it's a lot cheaper than the "discrete" opamps out there and at least it has specs, measurements, no obvious failings etc. Post #9 of 20 raymond555 100+ Head-Fier. Donations. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 Engineers apply the knowledge of math & science to design and manufacture maintainable systems used to solve specific problems. Posted by KanedaK (A) on December 22, 2016 at 16:38:35 . This, combined with the high output drive capabilities and good DC performance, makes it suitable for a wide Quite a while ago, and on EW's recommendation I upgraded the OP amps in my AU-D11 II from the original M5219L SIL-8 package OP amps to OPA2604 PDIP-8 OP amps. Most of my experience with the listed op OPA134, OPA2134, OPA4134 SBOS058A –DECEMBER 1997–REVISED OCTOBER 2015 OPAx134 SoundPlus™ High Performance Audio Operational Amplifiers THD+Noise vs Frequency Single and dual versions are available in 8-pin DIP and SO-8 surface-mount packages in standard configurations. 57 in x 1. I currently have 2x AD8620AR for sale, thanks ian Open-Loop Gain and Phase vs Frequency Offset Voltage Drift OPA828, OPA2828 SBOS671D – SEPTEMBER 2018 – REVISED DECEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. You don't need to modify the power supply, it is possible to be stable without another caps. OPA1612 is one the most low-noise opamps ever built, so totally recommended for unity-gain stages (LPF or output stage of a DAC, but also I/V stage too). I've ordered some opa2604's from ebay still in transit to play with. In fact just about every spec is, save for I also think that op-amp rolling is rather fun, even if the only op I found to be sounding clearly better than ne5532, was the lm4562 ( the others I tried: opa1642 opa2134 and opa1612 ) Last edited: Oct 2, 2021 opa2134 opa2141 opa2197 opa2211 opa2227 opa2604 opa2626 opa2828. The OPA627 is, without doubt, a superb audio op amp. Anyway, OPA2134 is pleasure sounding Op-Amp. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. For the TL072 the AD8512 (should usually also work as 5532 replacement). ad827：延伸非常好，解析力高，高頻華麗，中頻純厚，低頻下潛和力度都不錯，音場向前後左右拓展，有了凹凸感（這一點比其它運放強），速度快，動態好，感覺很大氣，初換上此運放後確實有讓人為之一振的感覺。 When low bias currents are needed with superior performance then the OPA2134 is often a good choice, though it is at least four times as As Mark pointed out OPA1612 is a terrific sounding opamp and if you have problems with its bold mighty extreme low bass performance or with the extreme high resolution and unfiltered highs Again, the OPA2134 is IMO a very good opamp but the Burson is just better. Premier Sponsor Forums and Sponsor Forums. the O2 dScope measurements that NwAvGuy posted. Muses02 vs BB OPA2134 in Topping A30 (single-ended to differential buffer) Rig includes: Topping A30 and D30, HD600s (vintage 2017) with HD650 (genuine Sennheiser replacement part) 3m cable (1. Head-Fi Special Forums. To recap: the circuit has an open loop diamond buffer output, so the op amp is just providing voltage AkLIAM LC5 LC6 Low Noise Low Distortion Class A Discrete Op Amp Upgrade Replace Muses02 OPA627 OPA1612 LME49720. 1 Features. 48 in x 0. Noise of the A07 is mostly defined by high resistance values in its resistor network around the input dual opamp, there is no chance for improvement without re-designing. Transients are stronger, both rimshots of snare drum By newer I meantnewer, because OPA1612 is a newer design then let's say NE5532 or even LM4562. The OPA1602 and OPA1604 series of op amps offer rail-to-rail output swing to within 600mV with 2kΩ load, which increases headroom and maximizes dynamic range. LM4562, and NE5532, and OPA2134 sounded the best. The OPA1612 is used by Topping/SMSL and I believe The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low. (b+)njm2114, opa2134 (b)njm4580, njm5532, ne5532; 全体的に音質が向上しており、その中でもad8066とnjm4580の2つは飛躍的に音質が向上しています。また電源8v（±4v）ぐらいに下がるとまともに動作しないopa2604も大きく変わりました。opa627, opa2604に感じる曇りのような妙な OPA2134 OPA2604 AD823 LM4562 LT1057 TL072 NJM4580 OPA1612: OPA1612是德州仪器公司（Texas Instruments）出品的单声道音频运放，具有低噪声、低失真和高带宽等特点，适用于LPF和HPF、音量控制、Mixer和Buffer等应用场景。 However, there are several op amps that are often considered for audio application like NE5532, OPA2134, LM4562 and more. Its output power is slightly less than the OPA1688, and capacitive load capability is also just a tad less. opa2134与上面2个，在伯仲之间，差别真的很小。 7. Joined Jul 7, 2022 Messages 9,885 Likes 14,332 Also compared the OPA1612 to an NJM2068 and OPA2134 in a moving magnet preamp and it was, as expected due to higher current noise, noisier than the BJT '2068 and FET '2134. It's SMD only, though. OPA2134 series op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions, including high load capacitance. The OPA2134 is more a better replacement for the TL072 when you need a FET type. 6mA. Replacements: For the 5532 the opa2211A or opa1612 as well as LT1358. These would toast at +/-20V so minor tweaks of the power supply/voltage dropping resistor may be needed. Burson V5i-D better than OPA1612 stock Xduoo XD-5 . We would like to show you a description here but the site won’t allow us. Veri Master Contributor. For example, if you're using an OPA2134 in a CMOY-type headphone amplifier, the OPA1688 would be a big improvement in both distortion and power consumption. (Came with the other DAC an Aune X8 XVIIIth. Open-loopgain and CMRR are just as important. dip 8 ic. On the flip side, it has substantially lower input voltage noise than the OPA1688 (1. Audiofool Reviews – 21 Apr 19. It appears that the OPA1611/2 have a lower noise According to the TI datasheets OPA1612 has less noise than OPA1656. 1-Hz to 10-Hz noise. It's best use as an alternative to opa1612 when noise is not a big concern. 3 v caps, Service manaul Mega File Upload - hfe_technics_sl-pg440a_service. Below picture is the Sch , and the distorted waveform is attached vedio. But $40-57 each Careful swapping in a higher bandwidth part, they can OPAx134 High-Performance, SoundPlus™ Audio Operational Amplifiers. 00008% • Low noise: 8nV/√Hz • True OPA2134 is probably a good choice in general. Sometimes I change from OPA2209 to OPA1612 to hear extreme detail OPA1612 let you hear the flies in the recording studio With OPA1612 you will hear details you never heard before. Unfortunatly with the new OPA1612 I have obtained a lot of noise on the output The OPA2134 is more a better replacement for the TL072 when you need a FET type. Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136. 5RQ Balanced Power - Tascam CD200 - Oppo 93 - Auvio HD Radio Tuner- MiniDSP OpenDRC-DI DSP, 2x4HD - AcourateDRC - UMIK-1 - ECM8000 - REW - Behringer DEQ2496 - The next op-amp I am planning to try is the OPA1612 but perhaps the DAC is the limiting factor and perhaps the measurements will look very similar to the OPA2134 even if the OPA1612 is a really good op-amp. Incredible! (If I am not wrong OPA1656 is a really modern OP The OPA828 and OPA2828 ( OPAx828) JFET input operational amplifiers are the next generation OPA627 and OPA827, combining high speed with high dc precision and ac performance. • Excellent sound quality • Ultra-low distortion: 0. I'd also want to verify anything faster than what the board was designed with is stable. to wrap my head around the preference for DAC >>> OPA1612 >>> HPA1 versus DAC >>> OPA1612 >>> TPA6120 The main difference between OPAx132 and OPAx134 is in DC precision of the high grade of OPAx2132P/U and OPA2134 (e. 1nV/√Hz Noise, Low THD and Precision. SparkOS Discrete Op-amps SS3601 and SS3602 with comparisons to Ne5532/5534, Muses02, Burson v6 Classic, and Burson v6 Vivid op amps. Dual customzied solution will give unmeasurable Now i tested opa1612 with lme49720 and 1612 is better in my opinion. 004% @20KHz The above parameters are insignificant to the audio level variations imposed by substandard audio recordings, room modes and compromised Other cheap ones on my radar - OPA2134PA, OPA1612, LM4562NA. In this case, I added the LM6172 to the mix. which is worth considering as a drop-in Installing the Sparkos SS3602 op-amps is easy. What impedance circuitry is involved - current noise specification may be crucial, in which case the MC33078 are fine - similar to NE5532, or you could go to JFET opamps. It is a touch better than opa2134 - especially where small reduction in noise level is welcomed. 2013-06-30 1:38 pm. 1nV/√ Hz とい う非常に低いノイズ密度を実現します（1kHz動作時）。 2kΩの 負荷に対して600mV以内のレール･ツー･レール出力振幅で動作 するため、ヘッドルームとダイナミック･レンジが向上 OPA1611, OPA1612 www. 比較したのは高音質のもの限定で厳選した電圧帰還icのlme49990、opa627、muses8920、opa1612（opa211 についてはすでにテストしてあるものであっても高評価ではなくて、他にopa2604やopa2134なども世間での評価は高いですが、こちらの評価ではそれほど良くはあり Other Parts Discussed in Thread: OPA2134, LM4562. If you want to reopen this topic, contact a moderator using the "Report Post" button. 2 dB at 1 kHz, while driving a 32-Ω load at 100-mW output power. The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. So there Order today, ships today. It ensures a very low noise density as well as an extremely low distortion level. Share Reactions: LaughMoreDaily. opa1654. 00008%, 2604 is 0. 5). The AD826 seems to be smoother than the OPA in the voice range. 102 Reviews ౹ 331 sold. 00033%をたたき出しました(opa2134使用)。高級オーディオ機器でもなかなか見ない数字です。スペクトラム上でも高調波は-120db近辺以下ですね。 OK i've been testing the OPA2227, OPA2228, OPA2134, OPA1612, and the Muses 02. Be mindful that the OPA2228 is a little unstable if the gain is lower than 5 with non-resistive loads but I seem to be able to use it to replace other opamps in many occasions. -Category Forums. ic ad724. The LM4562 is a high-performance audio operational amplifier (op amp) manufactured by Texas Instruments. Now, we run through a hand calculation to find the total noise of a simplified audio system. lme49720 vs opa2134. YMMV . analog devices ad823 ad826 ad8066 ad8510 ad8599 ad8610 ad8672 ada4075 ada4610-2 ada4622-2 ada4625-2 ada4898-2 lt1469 lt1361. Dears . Jump to Latest Tieftoener. I would recommend OPA2134 or OPA134 and if you have money the OPA627 or OPA637. When compared to the popular OPA111 op amp, the OPA6x7 have lower noise, lower offset voltage, and higher speed. In that schematic, you have a lot of series resistance , like 820 ohm, and that will rise up the source impedance. Noise isn't the only factor in opamps you know. 1-nV/√ Hz noise density with an ultralow distortion of 0. but I'm not a big fan of personally - though mostly transparent and decent performance I find it somehow sounds "sterile" and probably responsible for turning a good few to tube amps. The LM4562 is a dual-channel op amp, meaning it In the case of the suspect fake OPA2134 op-amps one could spend hours chasing up a noise fault suspecting other circuit components, power supply noise or even circuit topology as the cause, only to be chasing a red herring instead. It is not good for the input signal currents of the BJT's opamps like 5532's. Best regards! fpitas Master Contributor. as well and I might try a opa2134 I have lying around. 000015%)。OPA1611 和 OPA1612 在 2-kΩ 负载下能够提供摆幅在距离电源轨 600mV 的范围内的轨到轨输出，这有助于实现动态范围最大化。 Lets take a look at the NE5532 op-amp, used in audio products everywhere since 1979 and it costs about a $1. Find parameters, ordering and quality information Tubey, better late than never - I just replaced all NE5532 amps in Benchmark DAC1 with OPA1612 and play it so far for few hours. The only ones in the OPA that I liked was the ones I obtained free fron the BB site via there R&D program such as the OPA1612 . The combination of high slew rate and wide bandwidth provide fast settling time. Noise is almost same as with LM4562 and there are no problems with distortion. I The ultra high-end FET devices, like the Di-Fet OPA627, are an exception to the rule but the FET OPA2134 is not. The completely docile op amps are the OPA2604, the OPA627, the OPA2107, the LM4562/LME49720 and the OPA2134. OPA1612, OPA2211, LME49720HA, OPA2111, AD746 (class A), AD8620, AD8066, OPA2228, AD8059. 3 nV/√ Hz noise density with an ultralow distortion of 0. So in this discussion, I will focus on the modern Vs. I tested the opa2134 vs the ad712 that were stock. The 49720 is more clinical IMO. TI’s OPA1688 is a 36V, 10MHz, Low Distortion High Drive Rail-to-Rail Output Audio Operational Amplifiers. , at a very There's been quite a bit of discussion of the comparative merits of the OPA2134 vs the OPA2604 recently. AD8620 vs. opa1612细节感很好，在这次只针对低频部分的试听里面，没有优势。 鼓声与275差不多，没有275那么硬，软一些，比49720硬一些。 6. g. Review of LM4562 IC 1. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. At this point noise and ultra low noise supplies might be the last area I should put more effort into for this interface. 1nV/√Hz 噪声和较低 THD 的高精度 SoundPlus™ 音频运算放大器 OPA1612-Q1 Thanks for the reply though, I checked it out and noticed the comment on the OPA2604 needing more juice, so I checked out the spec sheet at TI, and it seems like it'll like anything from +/-15V to +/-24V, while the OPA2134 only likes up to +/-18V (pretty close to the -17V of my power suply), so I think I'll feel safer going with the OPA2604 regardless. If anything, it has a more 'neutral' sound than the (possibly slightly euphonic) OPA2134, but its performance is very reliable and dependable and of a very high standard, which possibly explains its long standing use in The OPA1612 is very detailed and quite clinical sounding. It can be a bit expensive for some people, Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. It performs worse in some ways than the much cheaper bipolar 5532. Joined 2002. opa1659. opa2132 vs opa2134 opa2211 vs opa1612 opa1656 vs opa2156 lm4562 vs lme49720. - Etwas flachere Darstellung als beispielsweise OPA2134 - Eine etwas künstliche Darstellung Auch wenn der OPA2134 G'day all, an interesting thread. Removing IC op-amps can be a little tricky, especially if they’re located in a tight space or if you don’t have the Actually, the OPA1612 and OPA1688 are available in SO-8, not bad. 50 w hifi power amplifier. For modern dac's you don't need so much higher speed, opa1611 oe opa1612 Link for opa1622 and opa1612 link I got this OpAmps more than year ago and still can't be trusted, but 1612 need soldering and SOP8 to DIP8 converter. This was only possible because of the excellent 'Brown Dog' PCB adapters made by Cimarron Technology ( I shared (in the DIY Project Pictorial thread) my recent experience with replacing an NE5532 op amp with an OPA2134 in my DIY phono preamp. I would not use any fast op-amp with an adapter. OPA134. 00003% at 1kHz. At >$6 each it's not cheap, but it's a lot cheaper than the "discrete" opamps out there and at The OPA1612 is one of the best I’ve ever encountered, the LME 49720 are hard to beat at any price. - Etwas flachere Darstellung als beispielsweise OPA2134 - Eine etwas künstliche Darstellung Auch wenn der OPA2134 OPA1611, OPA1612 www. 5nV/rtHz), dual audio op amp. jrc5532是上面这些运放里面，最接近02的，但是少了那种干净（清秀）的感觉。 部件号：OPA1612 主题中讨论的其他部件： OPA2134， LM4562. I also really liked the OPA627 that I had in an audio-gd dac years ago. 4 Calculating Voltage Noise at the Output. Dual customzied solution will give unmeasurable distortion (possibly -180db). Preferred the opa627 until the Sparkos ss3602 for it arrived. Since i couldnt find an opa2134, i just use tl072 and the likes for our projects I am just curious how opa2134's output performance. All are direct replacements, nothing else need to be modified. Anther, When we used opa2134 or lm4562 to replace opa1612, the distortion disappear. It measures quite a bit better than the opa2134 in a variety of areas and has the same pin configuration, which means they are directly swappable. Totally agree; also the way you decouple the OPAMP, the type of capacitors and where they are physically located around the OPAMP makes the difference. Members. HeadRoom Premier Sponsor Forum. 3. ※在庫数欄の表記が『おひとり様 点まで』となっている商品は、現時点で、おひとり様（1団体様）あたりのご提供数量を表記の数量へ制限させていただいている商品です。 Of the op amps in my collection the massive misbehavers are the OPA1656, the LME49990 and the OPA1612. Joined Feb 6, 2018 Messages 9,624 Likes 12,107. There is only 2 large capacitors in the power supply 1 x 1000uf 16, and 1 x 2200uf 16v, and 4 x 100uf capacitors of various values and about 4 x 47uf 6. I am sure that the overall results are going to be context specific, but thought an additional comparison might prove useful. Input buffer and Previously i used OPA2134 Op-Amps in my DIY project and CD/DVD modification and after abou year ago i start to use OPA1612. They are delivered via private courier So for a low cost the LM4562 or OPA2134. Find parameters, ordering and quality information The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. And without mentioning every op amp in existence, I'll close with I yet have to find a circuit where an NE5532 is the best possible option. Currently, I require opamps Is the OPA1612 good enough to feed into an external amp? It's in the Fiio K3s but I want to use it as a standalone DAC OPA2134 and NE5532 both have power supply currents of about 4mA per channel, and have been widely adopted in the market (understatement). Other Parts Discussed in Thread: LME49720, LM4562, OPA1654, OP07, OPA2134, TL072, OPA1652 首先关于LME49710、LME49720、LM4562这3款运放一直有个疑问，究竟这三者之间是什么关系，LME49710是单运放，另外2款是双运放，LM4562是LME49710的双运放版 TI 的 OPA2134 是一款 SoundPlus™ 低失真、低噪声精密音频运算放大器。 、精密运算放大器 OPA1612 — 具有 1. I'm still waiting for OPA1656 OPA1611（单通道）和 OPA1612（双通道）双极型输入运算放大器在 1kHz 时可实现很低的噪声密度 (1. 1nV/rtHz vs 7-8nV/rtHz) but still has a reasonable supply current of 3. If an NE553 lang:en score:21 filesize: 685. 最近需要用到咪头采集人体的生理信号，咪头的灵敏度在-34dB以上，信噪比大于58dB,频率响应范围在20Hz到16000Hz。不过昨天我将咪头的两个引脚接入OPA1612放大电路没有任何信号，想问一下咪头采集电路是怎样的？ I talked to a TI/B-B applications engineer today. IC opam âm thanh MUSES02 chính hãng ( có thể nâng cấp cho OPA2604 NE5532 LM4562 ) MUSES02 là một opam đôi - dual-op - cao cấp hàng đầu sản xuất bởi Công ty JRC tại Nhật Bản. I would use several thousand for one job, IF they were made The LM833 was released way more than 20 years ago, and if memory serves, OPA2134 was released around the year 2000, and LM4562 around 2006. Details; Discussions; Posts; This discussion; 10,312 posts. But for MC phono pre-amps a low noise bipolar input op amp like the OPA1612 would give the best noise Yes sir. "OPA1612 is better than OPA2134. 5nV/√ Hz noise density with an ultralow distortion of 0. 67 K It's very likely that the OPA2134 has been "blessed" with several die shrinks for cost and yield improvement during its lifetime. 1 Absolute Maximum Ratings. But I really like the FET's in that position. The OPAx132 is the slightly better version for DC critical applications. 鹿 . It works with no problems. 我想升级音频放大器 opa2134、ti 网站再次命令我更改新的 opa。 我发现 opa1612是 soundplus 终极产品系列中的一款产品、这就是我对它进行更改的原因。 遗憾的是、对于新的 opa1612、我在输出通道上获得了大量噪声。 我尝试使用 ne5532p 等低成本组件、无噪声、opa2134无 พวก opa627 opa2134 muse01/02 muses8820 muses8920 lme49720 ne5532/34 OPA1612 VS MUSE02 ทั้งคู่เป็น BiPolar เหมือนกัน เสียงต่างกันไม่มากนัก OPA1612 เสียงจะสว่าง และ สะอาดกว่า ส่วน MUSE02 opa1612 与 . Supply voltage, (V+) – (V–) 36 V Total Noise of OPA1656 vs OPA1612. Bass is more textured but like the vocals, you hear the FX processing which sometimes slightly dilutes the attack and slam of the drums in some The Silicon Chip High Fidelity preamp for 2 channel is based on the OPA2134, and is available via the Altronics franchise. I do encounter some instability especially with equaliser circuits. Currently, I require opamps in the DIP package. I plan to get the brown dog adapters and try the opa 627's soon. Their outputs in turn drive a pair of op-amps in the socketed Op-amp (circled) which are our output buffer/op-amps. I can cite many cases, however, where an added "something" that does not belong in the signal is perceived as "better sounding. SparkOS Discrete Op-amps | Audiofool Reviews. Long-winded question for I found that these two ICs had similar parameter, but some difference: OPA2134: lower noise(8nv, 2604 is 10nv), lower distortion(0. 0 . 4 mA, max. 5 Euro OP275 ~ 3 Euro OPA1612 ~ 6 Euro According to specs I would think the OPA1642 would be one of the best compromises cost vs performance wise. The clear winners for me are the 2227/8 but I think the 8 has a slight edge in high end possibly? Yeah. For being itself, opa1642 The TL072 isn't great IMO. I Burson V5i gives you a significant upgrade from the stock OPA1612, also beating most op-amps from its price bracket. If the orginal OP is a FET (like TL072, OPA2134 etc) we may be careful sometimes NOT possible to replace with Bipolar (like NE5532 etc). it is better than OPA2134. OPA1612 sounds better than any transistor I'll look at it if you know of one amp using OPA1612 sounding audibly better than another amp using cheaper op amp in objective listening comparison. The other OPA2134 is for I/V convert. So none of them are direct replacements as the resistances are so large and more suitable for the TL072. LME49720 sound is boringand too light. 1nV/√ Hz) 和超低失真 (0. It is more open sounding and clearer sound from OPA1612 then OPA2134. e. the problem of dc-bias feeding into the pickup cartridge TI introduces the industry's highest-performance audio operational amplifier Lowest distortion and noise, high linear output current, and low power push the boundaries for professional and The OPA1602 and OPA1604 bipolar-input operational amplifiers achieve very low 2. Don't Menu. 5 mA. Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers 1 Features • Ultra-low noise: – Voltage noise: 2. Try them and see for yourself. I must With the Burson V5i-D in my collection now, I have four sets of OPAMPs for my xDuoo XD05 Bal, OPA1612 stock OPAMP, JRC 5532D stock replacement OPAMP, Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136. max Vos of 0. Of course I got the thing working with TL072 and all is running fine at the moment. Other Parts Discussed in Thread: OPA2134, OPA2604. Our audio amplifiers deliver clear sound, while enabling you to meet demanding system requirements in both industrial and automotive applications. So I've no interest to use it and do not support the hype-makeup around that cheap chip. Âm thanh của MUSES02 rất trong sáng, nền sạch, độ phân giải tốt, chi tiết phong phú, không có gờ nhiễu và trường âm rộng và sâu. Forums. #2. ah so much other untested opa's 1678 still on my list ina1620. Composite amplifier is one of the best application with opa1656. 输出部分则选用了两片时下美国德州仪器出产的最受发烧友好评的发烧运放opa1612，opa1612是ti推出的一款性能相当优异、双通道、双极输入音频运算放大器。 If I could also request test of: OPA1642 ~ 2 Euro OPA1656 ~ 2. 1. Seems it possible to buy a big enough batch of SGM8261 with any ordered Excuse me, it's not the OPA1642, it's the TPA6120A2 vs OPA2134, which one is better for audio, which has better quality, thanks. You should be able to find single-to-dual DIP8 adapters for mounting 2xAD797 on a We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). But even there sometimes a TL072IP or even RC4558 can be sufficient and much cheaper without any difference. If a FET-input amplifier is required Prodigy 205 points. 1nV/√Hz noise density with an ultralow distortion of 0. Share Apr 28, 2011 at 3:32 PM. So, parts are not spec'ed for or anything better than opa2134 Hi, Interesting that no one has mentined opa2132P so far. OPA2134 is mediocre (LM4562 is just as good). Home. The OPA 1612 and the 1642 is to my ears Hello, Wandelblu, Minon. The first step is to find and remove the existing components. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. 5v就能工作，用于直接替换声卡常用的jrc4580、5216、4558、4556等运放非常合适，性价比极高。它是女声利器，女声表现被形容为高贵的“公主声”。其姐妹运放型号是opa2134，耐压值更高，音质与opa2132相仿，细听之下还是opa2132更精致一点。 Total Noise of OPA1656 vs OPA1612. ljeeqsmynmpippnncvstlugsraykmkpdfwiwsfjrqkmxrsxordhjsv