Opa1612 vs opa1642 forum.

• Opa1612 vs opa1642 forum The OPA2134, in comparison to OPA1612, is more detailed but perhpas shrowded. I tried opa2189 lmh6643(stock), opa2156, opa1656, opa1612 opa1642 opa2140 etc. 00005% AD8610 AD8620 Bandwidth Bias current CMRR Gain LM4562 LME49710 LME49720 LME49721 LME49722 LT1057 NE5532 Noise Offset voltage OPA134 OPA1612 Dec 6, 2018 · I don't think you can "get into it" here, it quickly degrades to psychoacoustics and audiophoolery compared to science. Feb 17, 2023 · The OPA1622 is a slow device compared to the OPA1612/OPA1656. Part Number: OPA1612 Other Parts Discussed in Thread: OPA1622, OPA1688 Hello, I am considering the OPA1612 as a headphone driver replacement for JRC2114. May 19, 2004 · My configuration is PCM1704 to twice first-order inverting amp with series R and R||C feedback. For some reason I refuse to use it as often as I can though, being CMOS. OPA1622 — 1700р в ЧД OPA1622 — по звуку напоминает OPA1612. However the LT1028 stands out in all respects. ). The amplifier is powered by 2 x 9V batteries for low noise operation. Dear TI E2E support, Hi there, Our team made a prototype of a phono-stage amplifier (pic. Aug 13, 2014 · The Silicon Chip High Fidelity preamp for 2 channel is based on the OPA2134, and is available via the Altronics franchise. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. w sekcji zasilania (kondensatory, diody soft-recovery zamiast mostków). cn zhcsdf7c –july 2009–revised august 2014 5 引脚配置和功能描述 d 封装 opa1611，soic-8 d 封装 （顶视图） opa1612，soic-8 （顶视图） drg 封装 opa1612，son-8 （顶视图） (1) nc 代表没有内部连接。引脚可保持浮空，也可连接(v–) 和(v+) 之间的任何电压。 The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. OPA2209 does reproduce sub bass as deep or deeper than OPA1612 but the latter has a pretty significant presence in the sub bass region. The OPA1642 is the audio version of the OPA2141 and the high precision OPA2140. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. The input stage is set up as a unity buffer with a bootstrap for high input resistance. 2209 has particularly an amazing resolution and detail level with a Great deal of soundstage depth. Two identical gain 11 amplifiers were tested. 度范围 opa1612-q1 器件可在2kΩ负载条件下提供摆幅在 – 器件人体放电模式(hbm) 分类等级2 600mv 以内的轨到轨输出，这有助于提高余量并实现 – 器件组件充电模式(cdm) 分类等级c6 动态范围的最大化。此外，这些器件还具有±30ma • 出色音质 高输出驱动能力。 The OPA1641, OPA1642, and OPA1644 series of operational amplifiers are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. My first tests were with an OPA1612 (equivalent to OPA2211) in the instrumentation stage, but I didn't manage to get the circuit ringing free under all circumstances due to sloppy wiring, decoupling and grounding. 000015% at 1kHz. The OPA1642 has the JFET input stage- thus reducing the input current noise- reduced common mode input distortion and sensitivity to source impedances, and lower standing current going for OPA1612到了后，自己先试了试OPA1612+JRC5532，感觉和OPA1642+JRC5532没什么区别，我试了好些碟，也试不出来什么区别；三频几乎没有差别，打分还是一样的，90分水平； OPA1612+OPA1612，这个组合的高频给我非常好的感受，比OPA1642+JRC5532明显更细腻一点，高频的线条感更好 OPA1611, OPA1612 www. 特に雑音は従来のfet入力オペアンプを比較するための定数だとその性能を生かせないほどです。opa2134やopa1642用の回路でオペアンプだけそのまま置き換えるのではもったいなさすぎる性能だと思います。 オーディオアンプにも少し使ってみました。 Jul 4, 2009 · OPA2192 being my favorite CMOS opamp and OPA2209 my favorite bipolar alongside OPA1612. 0000x distortion and so on). 5 days ago · Archiver | 手机版 | ( 鄂ICP备05007555号 ICP证:鄂B2-20130019 公安局网监备：420100007348 邮箱：1343292467@qq. Pin can be left floating or connected to any voltage between (V–) and (V+). 1692去年底新出的，没听过。以opa140作中性参考的话，1602中正清晰低频量多而扎实，1612声场深广高频清丽低频回响略大，1652全频平实偏暗适合搭过亮系统，1642温暖顺滑有点软。 Jan 10, 2016 · He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. Does anybody TI E2E support forums Jun 18, 2019 · Hello everyone, I have the DAC Emotiva XDA-1 preamp with the DAC Analog Devices AD1955 and Burr Brown OPA-2134 op-amps, I want to update to the Burson Audio Play with the DAC: ESS Technology SABRE32 / ESS9018 and NE5532 X 3, NE554 X 2 op-amps, would it be a good update to the Burson Audio? thank you very much to all. Jun 13, 2016 · ポータブルアンプのオペアンプ、オペレーションアンプの交換の実験です。なかなかオペアンプの聴き比べは手間がかかるもの、今回は安価な価格帯のオペアンプから、様々な聴き比べをしていきます。 We would like to show you a description here but the site won’t allow us. Dec 28, 2018 · OPA1612/2211 has excellent CMRR but PSRR isn't stellar and strictly follows OLG. Good to see so many on this forum liking this opamp. Aug 3, 2019 · Switching to the OPA1612 and the OPA1642 doesn't appreciably change the measurements of the MC stage. The input is essentially shorted with 10mohm resistor in order to have a -140db control signal. The NJM4560DX does not appear to be FET type, though I thought a FET type like OPA1642 would suit this circuit? or maybe OPA1612 which isnt FET like the Apr 25, 2024 · Part Number: OPA1642 Other Parts Discussed in Thread: TLE2426, , OPA1656, JFE150, JFE2140, OPA1612, LME49720, OPA891. Dec 30, 2023 · Part Number: OPA1612 Other Parts Discussed in Thread: OPA1656 I'm up to, to design a 3rd or 4th order 20 Hz high pass filter with ultra low distortion. This OPA provides very good electrical and audio performance. 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 Feb 27, 2018 · 耳机大家坛 . The higher current drive of the OPA2822 would be beneficial. May 19, 2017 · An OPA1612 has slightly better specs than an LM4562---less noise and distortion, faster, and more output voltage swing. GMT+8, 2025-5-18 12:04, Processed in 0. The second time I did test with opa1656 and opa1612. Na moim warsztacie "psuję" właśnie transport CD Pioneer PD-30AE. Next, OPA828 was evaluated as a gain or VAS section in a small A class power amplifier with extreme performance (2 MHz power bandwidth, 200 ns rise time, 0. While improving on the flaws, some of the IC's SMD legs gave up and broke off. Just feel the better spec’d amp is better for the circuit (performance/health wise). Part Number: OPA1642 Other Parts Discussed in Thread: OPA1612, , OPA1652, OPA1688, OPA1662, OPA1602. OPA1642 was clearly beat by OPA1612 being more "rocky" and forward. Last edited: 2023-06-06 6:15 am opa1611, opa1612 www. I's latest offering, the OPA1656. The LME49720 has lots of spurs. Close to zero DC mv at its output would enable removal of the dreaded electrolytic coupling caps which will definitely lower colouration and improve sound quality. The LT1028 is by far better than the Opa1692. 我只知道 以前有个运放扩流的耳放 不同运放 中点漂移唔同 试过ti的5532漂移最大 其它高价运放没有 2132的漂移小一点 Jan 6, 2020 · The dual version of the OPA1641 is an OPA1642, but I'm confused as I believe that neither the Burson nor the OPA627 are duals. . The OPA1642, SMT-only, is also a good dual BIFET. But just the bass sounds a bit far away in comparison. The second stage is set up to provide gain anywhere from 1/10*Vin to 333*Vin. Opa1612 is generally slightly light weighted but very balanced otherwise. Maybe it's too soon for anyone to have obtained and evaluated samples, but -- well -- has anyone yet? They are supposed to be great audio op-amps. I also refurbish large format recording consoles. Nov 2, 2024 · Not for people who choose numbers in measurements. I think lmh6643 and opa1656/opa2156 have the lowest distortion at higher frequencies, 6643 probably even lower. TL072 is not in the same league, I replaced those decades ago already for better performing types. I suggest the following reference - 994Enh Discret OpAmp SONIC IMAGERY LABS - SPARKOS LABS SS3606 - AOP 1612 - LM4562 OP Amp Rolling: the Philips CD753 (aka Marantz CD5000) with MUSES8820 vs OPA1692 vs LME49723 and Others - an article by Paul Hunting on TNT-Audio, Internet HiFi magazine, www. This is a forum where guitarists, from novice to experienced, can explore the world of guitar through a variety of media and discussion. I don't care about listening tests or something else, just want to use the technical better one in my amp. If a bipolar-input amplifier can be used, then you might consider OPA1602 or OPA1611. I don't like the highs of OPA1612 though, they sound artificial to me. And opa1642 has a bit better soundstage I don't know why. com ). Odtwarzacz ten nieco już "poprawiłem" w roli transportu, np. Gra z zewnętrznym DAC bardzo zacnie. 000015% VS OPA1642 on the standard DMP-A6 AS the input stage of OPA1612 and INA1620 are constructed with the bipolar junction transistor (BJT), the input bias current and input current noise with BJT input are generally much higher than JFET (i. GMT+8, 2025-5-17 16:24, Processed in 0. GMT+8, 2025-5-18 09:26, Processed in 0. They require a SOIC-8 to DIP-8 adapter though. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. 5). Mar 17, 2019 · The Vendor's Bazaar forum is for commercial offers and transactions. Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. This is making OPA164x more and more favorable. e. Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. The 1 Meg resistor is developing a 0. When we developed the OPA1656, this was also a major design target for us, and the designer and myself spent quite awhile in the lab with previous CMOS audio op amps (specifically OPA1652 and OPA1688) hunting for sources of input capacitance variation. It is very airy, the bass and treble regions extension pretty well and overall it has a very neutral lively tonality. If a FET-input amplifier is required for low bias current (such as for a phono preamp), you might consider the OPA1642 or OPA1678. Wie gesagt, sehr subjektiv empfinde ich die Wiedergabe mit dem OPA1612 sehr viel klarer und deutlicher. May 6, 2022 · Good morning. May 9, 2023 · Hello together, i want to put one of the mentioned OP Amps in my amp. The Dual OPA1642 was perhaps the least interesting. It might require more capacitance in the LPF of the I/V stage to keep it happy Vs the others. 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. Both (I believe have Fet-inputs) There’s also 2189 CMOS audio op amp has impressive specs of an impressive was designed for MUX friendly DACs and multichannel dacs! Oct 31, 2020 · You can find OPA1622 and OPA1612 here, in DIP8 here : Audiophonics is 100% sure, 100% Genuine OPA1622 AOP Double DIP8 (Unite) - Audiophonics OPA1612 AOP Double DIP8 (Unite) - Audiophonics OPA1656 and OPA1612 are the best I tested with the TPA3255 / 51. opa1612到了后，自己先试了试opa1612+jrc5532，感觉和opa1642+jrc5532没什么区别，我试了好些碟，也试不出来什么区别；三频几乎没有差别，打分还是一样的，90分水平； May 6, 2023 · 2. 180244 second(s), 17 queries . These are SOIC8 size, but you can buy OPA1612 opamps on eBay pre-soldered on a SOIC to DIP adapter. And bias current vs common-mode voltage has a slope that adds distortion (H2) when source impedance isn't super low and well balanced while OPA2156 doesn't have that problem (but may have nonlinear capacitance vs CM voltage unless the input stage is bootstrapped like in OPA1642). Apr 25, 2024 · Part Number: OPA1642 Other Parts Discussed in Thread: TLE2426, , OPA1656, JFE150, JFE2140, OPA1612, LME49720, OPA891. But I'm suspicious that they are fakes, someone Jan 25, 2020 · OK, start from scratch - on the diyaudio forum there's a highly regarded ES9038Q2M DAC + output stage, which uses quite modern opamps - OPA1622 for first stage, and OPA1612 for second stage. I suspect that since the maximum Vcm is being exceded that something internal to the OPA1642 is preventing the applied voltage from reaching the +2. Słychać każdy mikroszczegół i pogłos. Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136. 158871 second(s), 18 queries . In note slyt630. Hello, I am looking at replacing the old JRC opamp in my phonostage of my amplifier. The Opa1612 is the audio version so they made the specs slightly worse. (OPA1642를 샀는데 SOIC이 아니라 8-TSSOP이어서 망했습니다ㅂㄷㅂㄷ) Jan 17, 2022 · 如果真的负面影响很大，厂商的推荐电路就应该用opa1642了。 opa1612/1611虽然低段有点肥散，但中频人声清脆、距离稍远 Jun 8, 2023 · Some members in the Pass Labs forum section used my design in their First Watt clones with the same conclusion. Jun 19, 2021 · The OPA1642 has more open at the high frequency, it is more detail but it noticeable sharp and edgy sound. Feb 11, 2021 · Even AD797 or OP627 cant hold a candle vs OPA1612 in terms of SQ - the difference is HUGE! My preamp sounds best with OPA1612 for gain and OPA2192 as buffer. For the case of Jul 14, 2021 · 3月份入手xd05bal，一直用传说中的最佳运放V5i-d听，对比当时原机带的opa1612可以说是全面提升。几个月过去了，突然想再折腾折腾运放，于是就买了lm49720，opa1642，opa2604。后来也学习了一些运放挑选参数，就上TI，ADI的官网挑，最后选中了opa2156。 From the data sheet, in comparison to the OPA1642, I see that the OPA1656 has slightly less voltage noise but also slightly more current noise; slightly faster and less THD, but worse CMRR. OPA1612 VS MUSE02 ทั้งคู่เป็น BiPolar เหมือนกัน เสียงต่างกันไม่มากนัก OPA1612 OPA1612 VS MUSE02 ทั้งคู่เป็น BiPolar เหมือนกัน เสียงต่างกันไม่มากนัก OPA1612 Apr 5, 2021 · We would like to show you a description here but the site won’t allow us. I really love LT1028! It's power-hungry, thou. There's no shortage of candidates here, and the new OPA1656 is a great option, but you could also check out: OPA1642, OPA1678, OPA827, and the newer OPA828, or also OPA2810. This combination will sound slightly more clinical than the OPA2228/OPA2822 combination. FAQ . Feb 16, 2021 · 折角買ったので好みの音になるようにDAC-SQ5Jのオペアンプを色々と変えて、これが一番かなと思える組み合わせが見つかった、と思った矢先に先日のブログに書いたネット配信の96kHzの音源を聴いてしまい、更に先が有ることを知った。 CDを何とかあの音に近づけたい！ と思って、今度は発売日 Apr 27, 2023 · OPA1612 with ultra-low noise and low distortion 1KHz 0. I found that OPA1612 was in the ultimate soundplus collection that's why i have change for it. opa1642 is actually really good. Dec 11, 2019 · It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Low- and Mid-Frequency Test Signals for Evaluation of Room Modes // Measurements: ESS Hump revisited // Humpify -- apply "ESS hump"-style distortions to audio files Mar 14, 2010 · 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 diyaudio forum might be better suited for posing the question. Strange but found too many times to ignore it. Good piano tone, good micro details and ambience around voices. Total harmonic distortion + noise at 1kHz (TI DS) : OPA1612 - 0. 1-nV/√Hz and an extremely low distortion level of 0. Mar 17, 2019 · The OPA1641 would be slightly better. I use these amplifiers for pro audio. Part Number: OPA1656 Other Parts Discussed in Thread: OPA2134, OPA2604 The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. Several reference are used on forum. g. pdf (sorry, pasting the address makes a huge link) you use a ~50 ohm isolation resistor. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. Smooth and natural. Jun 6, 2023 · The OPA1642 is significantly inferior to the OPA1612 in many regards (GPW product, output drive, distortion vs output load, input voltage noise for example). 000015% at 1 kHz. opa1612和opa2604哪个好. 5k Ohms which is what you get with a 10k pot when set to the electrical mid position if fed from a low source impedance Jan 26, 2012 · The NE5523, NJM2114, NJM2068, NJM2043, OPA2134, OPA2604, OPA1642 and MC33078 will all run in that circuit with various THD signatures higher than the OPA1612 but otherwise they look clean. Every amp. The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Very simple IVC. You can dig on the Internet and find modern op-amp test results, but it quickly crosses over into sonic character and subjective opinion. Low end: NJM2068 NJM2114 I'm thinking OPA1642 or NJM2068 at the input and OPA1612 or OPA1642 at the output could be an awesome setup. opa627 (in dual), lt1028 (in dual), lm6172 is too much speed, and are unstable in my tube-opamp hybrid preamplifier. So, the OPA1612 plus mini board is a suitable alternate to the LT1115/AD797 and the OPA1642 plus adapter to the LME49720. I would like to see these parts offered in a DIP package to replace the OPA2134PA. 000. The sub bass regions are more well pronounced with OPA1612. 157628 second(s), 19 queries . Only unmoderated members can post here. Which one has better electrical The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications. If I was chasing that OPA1642, OPA1652 or OPA1656 would be the best choice right now. 为增加其声音的胆味和醇厚绵密的味道，输出端还特别增加了一枚ti新构架的场效应jfet音频专用的发烧运放opa1642，该运放的信噪比极高，毫无底噪！一点都没有！非常的好！喜欢夜里听的人必须的！ Feb 3, 2024 · 2. If you need additional information please feel free to give me a call. Rolling opa1642, opa1612, muses8920, 2xopa627bp Nov 7, 2018 · Opa1652虽然也是fet运放，但是声低却不像他的大哥opa1642那么充满萝莉味，却和他的另外一个大哥opa1612类似，没有比较突出的部分，干净有余而力道不足，没有给我留下太多的印象。 Mar 21, 2023 · The OPA1656 (gain bandwidth product, GBW=53-MHz) and OPA1642 (GBW = 11-MHz) have a different bandwidth and we would need analyze the complete audio active crossover circuit to analyze stability and determine the issue. 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 better than any of these but these are SOIC and you’ll need an adapter with experience soldering skills. However for what ever reason I found the 2134 to be boring. OPA1656 (CMOS) on an adapter is a winner too. Tu na razie już nie ruszam. NE5532 is a very good amplifier especially for the price ($0. Nov 11, 2024 · OPA1612 has the better treble, AD8022 is nice and balanced, but they're both really good. The AD8066 is rather flat in comparison and OPA1642 more so. I'm looking for opamp better than OPA2604 witch big soundstage, and "analog" like sound? But e. OPA1642, OPA828, etc. 1-nV/√ Hz noise density with an ultralow distortion of 0. 4 V drop so the current flowing into the OPA1642 input is about 400 nA, which far exceeds the normal +/-2 pA input bias current. We would like to show you a description here but the site won’t allow us. 之前Opa2211x2+Opa1642那個組合用左半年左右，幾星期前IV轉用左2粒Opa1612，即是Opa1612x2+Opa1642。 而家諗緊好唔好試Opa2211x2+Opa1612，估計聽喇叭時會清過Opa1642做RCA的LPF。 Feb 6, 2018 · 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からラインアウト 6 days ago · The Audiophonics OPA1612 operational amplifier is based on an authentic Texas Instrument 1612 chip. Transients are stronger, both rimshots of snare drum and big-band trumpets. Mar 8, 2013 · Dual OPA1642 soic on brown dog 970601A adapter. Jan 27, 2024 · OPA1656 instead of OPA1612 by thuanth » January 27th, 2024, 2:57 pm I'm thinking of building a couple of a24 boards and want to try T. Welcome to r/guitar, a community devoted to the exchange of guitar related information. The single of the OPA1612 is the OPA1611. The outputs from both amplifiers where level matched. Idea taken from Dicks site. Also the OPA1612 does have the highest quiescent over the other opamps we're talking about it will be the hottest. tnt-audio. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Jun 5, 2023 · Although specifications of OPA1612 (bipolar) indicate they are superior to that of OPA1642 (JFET inputs) in practice OPA1642 performs slightly better. Feb 11, 2021 · Below is a comparison between OPA1656 and OPA1642. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. AS the input stage of OPA1612 and INA1620 are constructed with the bipolar junction transistor (BJT), the input bias current and input current noise with BJT input are generally much higher than JFET (i. Oct 18, 2022 · 本帖最后由 jasony0101 于 2022-10-18 15:33 编辑 如果要极端体验，就需要磨机了 换运放肯定是换不同风格的，你手上的这几个，828、1692跟1612基本一个风格，JRC的5532跟M02一个风格具体磨机玩法可以参考楼上的过往文章 Jan 19, 2023 · - LMP8672 (probably discontinued) - OPA1612 (which is barely available in SOIC8 at the moment) - ADA4898-2 - OPA1656 (if the circuit around it is right, it performs like opamps which are much more expensive, because of the FET Input stage it doesn't produce so much noise even with higher resistor values on its inputs) Aug 10, 2022 · Both the OPA1611 and OPA1612 are available in SOIC-8 packages and the OPA1612 is available in SON-8. Als wenn die Sprache plötzlich nicht mehr hingenuschelt wird…. I have not tested the OPA1612 with high value bias resistors to see if it has the latch-up/bias current correction start-up issues of the LME49720. Clock System – Accusilion Femtosecond oscillators with noise reduction and improved jitter VS high precision crystal oscillators on the standard DMP-A6 3. It has the most stable input capacitance vs. Głośniki znikają , a lokalizacja jest idealna. Joined Feb 29, 2016 Messages 11,488 Likes TI の OPA1612 は 1. com The OPA1641, OPA1642, and OPA1644 series of operational amplifiers are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. The dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded. May 8, 2011 · Speed is an issue, though. 1nV/√ Hz) 和超低失真 (0. Aug 22, 2009 · I just noticed today on the TI web site that the OPA1611 (single) and OPA1612 are finally reality. 4 days ago · Archiver | 手机版 | ( 鄂ICP备05007555号 ICP证:鄂B2-20130019 公安局网监备：420100007348 邮箱：1343292467@qq. ti. -Sherlon Kauffman Jan 12, 2025 · A much better part for MM is the NE5534 with an input noise current of 0. Apr 5, 2021 · The original amp has the OPA1656 and the other has the OPA1642. If soldering surface mount isn't your thing you can order them presoldered from the brown dog adapter distributors. The OPA1612 is a great part for source impedances up to about 2. Jul 4, 2021 · OPA1642 on adapter, make sure to check decoupling and make sure to check for oscillation. 000015% (original has OPA1642) Forum Donor. It provides a very low noise density of 1. Mar 7, 2019 · I'm currently using the OPA1612 and OPA1642 in combo with my phono pre and like the sound. The OPA1612 does not seem to have the process contamination of the LM497X0 that produces rocky-sounding noise. 00005% As if that will be the reason to explain it sounds better :) Feb 23, 2023 · Der OPA1612 im NAD 1240 ist doch eine andere Liga als der LME49720, welcher ja auch schon für Audio designed wurde. Wymienialem w buforze opampy na opa1612, opa1642 , opa2132 i nie było tak dobrze , jak teraz. opa1612和opa2604都是优秀的运放芯片，但它们之间有一些不同之处。 失真：opa1612的失真更小，更适合于要求较高的音频应用；opa2604的失真略高，但相应的它的价格也更便宜。 噪声：opa2604的噪声略多一些，但差距非常小。 May 21, 2020 · 다음 번엔 opa1612의 변환기판을 바꿔서 다시 들어보는 거랑 이번에 소개 못한 opa1642의 소리 평을 들고 오겠습니다. 000015% vs OPA1642 - 0. If you are looking for a newer version of the OPA627, then you might consider the OPA827. From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. Mar 22, 2022 · OPA1612 (soic on dil adapter board), bi-polar from input to output, again a very good opamp, which to me "sounds more balanced" top to bottom than the LME, it is just as dynamic, but just a little less obvious in the bass leading edge because the mid-range seems a little more fleshed out rich and full bodied, highs are just as good as the LME. 5amp. com. There is a plot of closed loop gain to Oct 2, 2021 · There is also a Preamp with a volume control, this needs some resistor values changes and then in view works best with a J-Fet (or Fet) Input Op-Amp, I like the OPA2604 with a pull-down CCS, even though it is not the lowest noise or distortion choice. 08 @ Mouser). Other Parts Discussed in Thread: LME49720 , OPA2134 , LM4562 , OPA1611 , OPA1612 请问下，音频处理链路中 为何有些用到了10M 的opa， 而且很多是，类似2604的， 而有些又用到了358， 1M的带宽， 有什么具体 差别吗？ Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). 022uf film foil were only caps in audio path she picked To accomplish this, I designed this schematic using the OPA1642 audio op amps. Honourable mention to LT1364 and LT1361 - they are both dynamic and involving even if the tonalities are rather more rounded. 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. opa1611, opa1612 www. Any project fired up with the OPA 2134 is going to impress due to the cost. ) and MOSFET(i. Jan 17, 2022 · 如果真的负面影响很大，厂商的推荐电路就应该用opa1642了。 opa1612/1611虽然低段有点肥散，但中频人声清脆、距离稍远 OPA1642 looks good on paper, better when you read the chatter from TI engineer on the project I would worry that there simply isn't enough low pass filtering on the board for the MASH output - even if it were a few bits multibit D-S as the latter MASH Nov 26, 2017 · In SMT the OPA1612, rated at 40V absolute maximum, is a very good part. Without scoping the outputs or measuring the DAC there's no telling if Jul 5, 2006 · Personally I prefer LM4562, OPA2228 and OPA1612 over OPA1642 because of the input noise that makes it sound less pristine. Mar 17, 2019 · Low output current would mean the transimpedance gain of the I/V circuit will be high, and the input current noise of the op amp will be a significant contributor. Feb 11, 2021 · i will second the notion of the opa1612 being audibly superior to the ne5532 its a huge difference my daughter who patiently sat through almost 2 hours o bling listening tests on 3 upgraded cd players a nad 546bee with foil film coupling caps and 50 volt 100uf muse bipolar and wima fkp3 . 7mA and max of 7. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. As mentioned previously the OPA2134 in BIFET is a decent performer. Archiver | 手机版 | ( 鄂ICP备05007555号 ICP证:鄂B2-20130019 公安局网监备：420100007348 邮箱：1343292467@qq. Nov 30, 2021 · Part Number: OPA2134 Other Parts Discussed in Thread: OPA1656 , OPA134 Hi Team, My customer wants to replace OPA1656 with OPA2134. Last edited: 2020-10-05 9:04 pm mlloyd1 Feb 22, 2016 · “比如30多年前的opa2604、2134，到后来的opa627，以及近几年的opa1612，都是口碑非常好的产品。 ”德州仪器高精度运算放大器产品线市场工程师周颖表示，“去年中国市场上很多主打Hi-Fi的智能手机、智能平板、播放器、智能耳放都采用了OPA1612方案。 3 days ago · Archiver | 手机版 | ( 鄂ICP备05007555号 ICP证:鄂B2-20130019 公安局网监备：420100007348 邮箱：1343292467@qq. 1nV/√Hz ノイズ、低 THD、高精度の SoundPlus™ オーディオ・オペアンプ です。パラメータ、購入、品質に関する情報の検索 Audio Asylum - Tweakers' Asylum - Tweaks for systems, rooms and Do It Yourself (DIY) help. You can also try OPA1612 as buffer with OPA2822 for the headphone driver. It offers exceptional performance in almost any audio application. It's a toss up between the JFET input's higher noise vs their lower sensitivity to input impedance changes. The OPA1642 is “one step down” but still very highly rated, and it is JFET-input which should give a low enough DC-offset to be used directly in this kind of application. It could be very interesting to test their performance: - SNR - Bandwish - slew rate-. Anybody know beter opamp than OPA2604 with realistic "analog" Oct 2, 2021 · 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 Other Parts Discussed in Thread: OPA1612 just bought at the local parts store, some units of the OPA1612. Mar 9, 2023 · 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 is higher than DO300 with less op-amps. 4 pA/rt Hz (so about one-quarter of the OPA1612) or a JFET input opamp like an OPA1642. 1) base on the circuit in OPA1642's datasheet. OPA Chips – OPA1612 with ultra-low noise and low distortion 1KHz 0. Mar 20, 2018 · I tried on smsl m3 a few months ago but not on d10. com and various reviewers, they have different OP amps (Operational Amplifiers). When I do serious listening test between them, just an A - B testing, not back and forth, I found the OPA1642 creates more noise at upper frequency because of those high frequency details. The OPA1641, OPA1642, and OPA1644 series of operational amplifiers are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. 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。 OPA1642: 2: 0. Jul 5, 2006 · Googled on OPA1642 and did not managed to find any review or even casual comments from any users can you advise comparable sound of some other op amps to this? I also looked at the LME49723 and the current stated is typical at 6. Part Number: OPA1612 Other Parts Discussed in Thread: OPA2134, , OPA1678. Hmmmm. OPA1656 sounded worst, Muses 8920 sounded best. OPA1656, OPA1678, etc. Hi Community, TI!!! I would like to upgrade an audio amplifier OPA2134 and the TI site web recommands me to change for a new OPA. During testing, OPA2134 and OPA1612 came out good. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. 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. cn zhcsdf7c –july 2009–revised august 2014 5 引脚配置和功能描述 d 封装 opa1611，soic-8 d 封装 （顶视图） opa1612，soic-8 （顶视图） drg 封装 opa1612，son-8 （顶视图） (1) nc 代表没有内部连接。引脚可保持浮空，也可连接(v–) 和(v+) 之间的任何电压。 Mar 21, 2023 · 后期的惊喜，opa1612和1642. 5 V level. Oct 5, 2020 · In places less hospitable to LME49720, OPA1612 has proven to be a very useful opamp for dac I/V and or differential summing. more specific, the Standard Edition is supposed to have the OPA1642 while the Master Edition the OPA1612. Currently, I require opamps in the DIP package. Jan 28, 2023 · Soczyście, szczegółowo, przestrzennie , trójwymiarowo i barwnie. For information you need a brown dog 021001 adapter for the LM1028's 1, opa1612和opa2604运放哪个好 你好，对于运放来说，最主要的是信噪比的比较，对比2604和1612的噪声参数应该是1612的要好一些：主要 May 25, 2011 · OPA1642 (JFET but otherwise similar to the 1612) These will have to be mounted on browndog adapters. My phono preamp, bye the way, uses OPA1611/1612 and OPA1641/1642s- amongst others. 179847 second(s), 17 queries . Jun 26, 2010 · HIFIDIY论坛-这是TI公司2009年推出的音响上用的发烧运放，高性能，JFET输入 , 大家熟悉的2134是FET输入的，从技术指标上看，1642比2134要高一些。High-Performance , JFET-Input AUDI Jul 4, 2009 · I prefer the opa2211 over the opa1612 (same chip but with less better specs). Polecam 8820 czy Musesy 02 , ożywią zmulone systemy. Thanks in Jan 6, 2010 · I have an Onix XCD-99 which is basically a Music Hall CD-25. I've seen mention of these on various threads in this and other forums. GMT+8, 2025-5-19 06:03, Processed in 0. Aug 11, 2020 · OPA1612音频运算放大器的主要特性与优势-德州仪器 （TI）推出的业界最高性能的双通道、双极输入音频运算放大器。与同类竞争器件相比，隶属 TI Burr-Brown Audio 产品线的 OPA1612 可将噪声与失真分别降低 60 % 和 50 %，为设计人员带来清脆的音质。 We would like to show you a description here but the site won’t allow us. It has OPA2604 buffer amps that many have replaced with dual OPA627BP's with good results. One more concern is that OPA1642 are surface mounted which means adaptor in my case Oct 2, 2021 · I tried opa1612, opa1642 , opa2134 and LM4562 and did extensive listening tests during some days, long term listening . May 23, 2018 · Opa2156 sounds a little more "detailed" and a little "grainy" in comparison. The OPA1642, however, is also LESS expensive ($2. Apr 6, 2020 · The OPA2134 is very ordinary, I consider it a side step to the NE5532. These devices are specified from –40°C to +85°C. Jul 4, 2009 · OPA1612 otoh has the best sub bass performance I have heard. Because I have two Aiyima a04, it was easy to compare a stock unit with ne5532 with the different OP:s . common mode voltage that I've measured on any op amp. Mar 5, 2018 · I read on several forum the advantage to use specific AOP for the final stage of DAC or Amplifier. If you have guitar related questions, start with the "search" field at the top of the page. In terms of noise performance in the real world the OPA1612 beats the LME49720. Teraz zastanawiam się nad kwestią Jul 4, 2009 · Marketing 101 by having one of the engineers on the diy threads because it creates interest (especially from spec crazy diy-ers who “need” the lastest and best specs and use “word of mouth” via the audiophile threads to push cost up by popular demand) They do outsource them to official distributors ie Mouser, Digi-Key but you have to buy them in bulk (we’re talking 100s to 1000s) and 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。 Jul 4, 2009 · The gain and phase vs frequency plot shows that the phase is almost flat for up to 1 MHz compared to OPA1612 which is inversely proportional to frequency up to 1 kHz and then constant up to 1 MHz. fr and eversolo-netherlands. Apr 27, 2023 · But according to re-sellers like audiophonics. The OPA1642 is a great drop in option for this device designed for audio applications. zexdofu wtfh byqsfq vvx oeauz jmolamfr act xbflyx czwmt wid