Opa1612 vs opa1642 price reddit. Opa1656 has good phase response at high frequency. 5). 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 May 3, 2022 · Its not immediately clear what would upgrade NJM4580 which is already quite low noise. 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! OPA1611, OPA1612 www. e. The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications. Home Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136 I use these amplifiers for pro audio. Find parameters, ordering and quality information Dec 10, 2015 · A fair question! And although I was the product definer and systems lead for this part, I don't get 100% control over the marketing folks But, I can honestly say that when we started working on this part about a year ago, I was very adamant that I didn't want to create a part with excellent specs but terrible sound quality in the real world. 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. 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? Facebook Reddit Oct 15, 2014 · Texas Instruments' OPA1612 (dual) bipolar-input operational amplifier achieves very low 1. For the case of OPA1612-Q1 Price, OPA1612-Q1 Stock, Buy OPA1612-Q1 from electronic components distributors. Mar 22, 2023 · 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 Jul 25, 2016 · MASH covers a few different number of bits in the output - the DAC output could just be switches if 802 is LM833, its bjt input isn't suited to the circuit filter/feedback impedances - really should be a jfet type 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 The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. Due to the circuit specifics it needs to be FET input, and also unity gain stable. 000015% at 1 kHz. The new contender is National Semiconductor LM4562, the price in in the middle of both two. For some reason I refuse to use it as often as I can though, being CMOS. TL074 is easily surpassed by OPA1644, that's a no-brainer. 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. For example the OPA1678 has a much higher gain-bandwidth product than TL072 and different output impedance, which means that the criteria for it being stable (i. It occurred to me that a more modern & higher performing part must exist at a lower price - a win-win scenario if ever there was one. Without scoping the outputs or measuring the DAC there's no telling if TI’s LME49860 is a 2-channel, 44-V, high-fidelity, high-performance audio op amp. 1) base on the circuit in OPA1642's datasheet. TI’s OPA1656 is a SoundPlus™ ultra-low noise and distortion, Burr-Brown™ audio operational amplifier. ti. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. It ensures a very low noise density as well as an extremely low distortion level. It has the most stable input capacitance vs. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. Mar 14, 2010 · NE5532 is a very good amplifier especially for the price ($0. Two identical gain 11 amplifiers were tested. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. . Pin can be left floating or connected to any voltage between (V–) and (V+). Thanks in The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications. Strange but found too many times to ignore it. 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. OPA1656 sounded worst, Muses 8920 sounded best. Opa1642 sounds a bit smoother and silky at top end but a little bit fat in the mids. 3nV/rtHz) and distortion (-124dB), wide bandwidth (22MHz) audio op amp. The OPA1642 is also theoretically the best choice for the unity and x2 stages in the output buffer, although the LME49720 is a very close second. Find parameters, ordering and quality information 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. 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. OPA2134 is basic hi quality Op-Amp and all rounder Op-Amp with great sound. not going into high frequency oscillation) are different and just swapping ICs may cause problems -- you might need to add some compensation for the OPA1678, depending on . It offers exceptional performance in almost any audio application. TSC Dec 6, 2018 · This question is triggered by a repair I recently did where the originals, while still available, were stupid expensive. It's kind of a solved problem A while ago I compared a FiiO D03K (€20 DAC) vs a Topping E30 II (150€) vs the internal DAC on a Marantz CD-Player. I also refurbish large format recording consoles. Dec 28, 2017 · There are some things to watch out for when swapping op amps. Jul 4, 2021 · OPA1642 on adapter, make sure to check decoupling and make sure to check for oscillation. Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. These three Op-Amps sounds great. Hello, I am looking at replacing the old JRC opamp in my phonostage of my amplifier. If a FET-input amplifier is required for low bias current (such as for a phono preamp), you might consider the OPA1642 or OPA1678. Feb 4, 2014 · In places less hospitable to LME49720, OPA1612 has proven to be a very useful opamp for dac I/V and or differential summing. I wrote a reply before, but apparently reddit sent it straight into the bin or something I said differences in DACs are usually very subtle. Last edited: 2020-10-05 9:04 pm More options Mar 7, 2019 · Sometime I use OPA1612, OPA1642 and OPA1622. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. ••• Texas Instruments OPA1612 Series Audio Amplifiers are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Texas Instruments OPA1612 Series Audio Amplifiers. common mode voltage that I've measured on any op amp. From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. 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。 Mar 17, 2019 · Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. But I really like the FET's in that position. TL072 is not in the same league, I replaced those decades ago already for better performing types. Nov 19, 2014 · opa1612 与 . Transients are stronger, both rimshots of snare drum and big-band trumpets. ••• Jul 30, 2021 · If I could also request test of: OPA1642 ~ 2 Euro OPA1656 ~ 2. 1 10 100 1000 1 10 100 1k 10k 100k 1M 10M 9ROWDJH1RLVH6SHFWUDO'HQVLW\ Q9 ¥+] Frequency (Hz) C006 Product Folder Sample & Buy Technical Documents Tools & Software Jan 5, 2019 · Other Parts Discussed in Thread: OPA1642, OPA1622. Page: 21 Pages. Also the OPA1612 does have the highest quiescent over the other opamps we're talking about it will be the hottest. TI’s OPA1662 is a Dual SoundPlus™ low noise (3. com Dec 9, 2019 · Home: RME ADI-2 Pro FS R BE—Neumann KH80 DSP, Arendal Sound 1723 1S Work from Home: JDS Labs Atom—Etymotic ER4SR, AKG K371, Sennheiser HD820 Measurement: Earthworks M30 (Reed R8090)—Earthworks ZDT 1021 — RME ADI-2 Pro FS R BE — REW Texas Instruments OPA1612 Series Audio Amplifiers are available at Mouser Electronics. Instead of asking for the good opamp, I think it's better to ask for opamps specs that are important in audio. Instant result for OPA1612-Q1 Mar 17, 2019 · The OPA1641 would be slightly better. ah so much other untested opa's 1678 still on my list ina1620. OPA1612 on paper has lower voltage noise but whether its lower noise in practice depends on the circuit impedances. Others have mentioned a few good ones (I haven't seen the NE5532 yet, which is an excellent choice given it's low price). Feb 11, 2021 · Below is a comparison between OPA1656 and OPA1642. 1 nV/√Hz noise density with an ultra-low distortion of 0. 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's best use as an alternative to opa1612 when noise is not a big concern. It might require more capacitance in the LPF of the I/V stage to keep it happy Vs the others. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Jun 19, 2021 · The price is US$ 3 compare to NE5532P is less than US$ 1 each. 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. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. Part #: OPA1642. Jun 5, 2023 · Although specifications of OPA1612 (bipolar) indicate they are superior to that of OPA1642 (JFET inputs) in practice OPA1642 performs slightly better. Dear TI E2E support, Hi there, Our team made a prototype of a phono-stage amplifier (pic. OPA1642 Datasheet. Every amp. 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！ We would like to show you a description here but the site won’t allow us. OPA1656 (CMOS) on an adapter is a winner too. 000. Jul 5, 2006 · Hi All, Please advise what would be the best bet for a modern replacement of the NJM353 in my 12-15 years old vintage 4X60W Class A Zero Feedback car amplifier? Tried dual OPA627AU on adaptor but the sound is of reduced volume, of loss details and PCB is warmer than before and the noob in me did not realized the input current of 7mA X 2 or 14mA for the each of 4 dual adaptor as compared to Apr 25, 2024 · Part Number: OPA1642 Other Parts Discussed in Thread: TLE2426, , OPA1656, JFE150, JFE2140, OPA1612, LME49720, OPA891. Composite amplifier is one of the best application with opa1656. The amplifier is powered by 2 x 9V batteries for low noise operation. May 15, 2022 · Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. Both fet based opamps sounds a little bit more solid in the bass (not quantity but the imaging and the texture). Before any modifications I use shematics to see what i need to choose between these four Op-Amps. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. File Size: 764Kbytes. Find parameters, ordering and quality information Mar 17, 2019 · CMRR is not a big issue. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, ••• OPA2134 is probably a good choice in general. 大家好。我使用OPA1642+OPA1622搭建了一个简单耳放电路，OPA1642接电流输出型dac作IV转换，OPA1622作差分运放接耳机负载。我发现音频段内所有频率都会有很大的失真，不知道问题出在哪里，还请工程师帮忙看一下。 OPA1642 IV电路. Currently, I require opamps in the DIP package. 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. May 9, 2023 · Hello together, i want to put one of the mentioned OP Amps in my amp. 1-nV/√ Hz noise density with an ultralow distortion of 0. The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. All op-amps in this test are DIP except the OPA1642 is in SOIC package. Manufacturer: Texas Instruments. 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. Jan 10, 2016 · He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. Feb 17, 2023 · The OPA1622 is a slow device compared to the OPA1612/OPA1656. My favorites at the moment opa1642 and this one opa1656. Part Number: OPA1642 Other Parts Discussed in Thread: OPA1612, , OPA1652, OPA1688, OPA1662, OPA1602. 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. 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. Description: High-Performance, JFET-Input AUDIO OPERATIONAL AMPLIFIERS. 18 The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications. Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). The dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. tnt-audio. Datasheet: 764Kb/21P. For being itself, opa1642/opa2140 is pretty good. Depending on the actual application circuit, there are alternatives with better noise performance. May 23, 2018 · The first time I did test with opa1642 opa2156 (precision opamp version of opa1656) opa1612. I don't care about listening tests or something else, just want to use the technical better one in my 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. We would like to show you a description here but the site won’t allow us. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. 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？ Apr 5, 2021 · The original amp has the OPA1656 and the other has the OPA1642. Aug 3, 2019 · The OPA1642 is the best choice that you can make other than incredibly expensive ones that provide very, very, slightly less noise and higher distortion. Jun 5, 2023 · 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 it, so in some circumstances it is better. One good example is XU09 portable headphone amplifier. Download. vrpnelknewutsjiwacxaqdxspvcinkafmjihbqeiarjiqptsoscnhkyycx
