Opa1656 vs opa1612 reddit sound quality

Opa1656 vs opa1612 reddit sound quality. I still have some channels of 2068 with old caps, so can A/B and the difference is shocking in a very good way. 1. Psychic contributors here now . He discusses the Sallen and Key High Pass filter in this book and also the distortion. I have a circuit with two OPA1656's and it so happens that one offset is subtracted from another and almost cancels - in LTspice. Mar 17, 2019 · Well, considering I run TI's op amp business, you could say I'm very, very familiar with how many we sell over the lifespan of a part. Review. Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system Dec 6, 2018 · This question is triggered by a repair I recently did where the originals, while still available, were stupid expensive. It'll deliver 75mA RMS into a 32 ohm load; that is 180 mW which is quite a bit greater than the rated maximum shown in post #162. I's latest offering, the OPA1656. 000015% The comparison would be quoting capacitance in uF regardless of size - 4. This made it a pretty minimalistic set-up to get a close view of the opamp differences. There is no practical audio program material which will have 24dBu (which is what 17. >100mA output current. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. I routinely use OPA1656 and related on adapters without any issues. At least, OPA828 has proper JFETs at input. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). The OPA1611 and OPA1612 Mar 17, 2019 · Also, I typically preferred simplicity in the op amps I developed. Mar 17, 2019 · Here is a copy paste of the result for OPA1656 OPA1656 In the past I have to say I prefered widely the AD precise sound vs the softer traditional TI sound. Standard opamp for that has pretty much become OPA1612. Some will point out the OPA1612 (which is even better) or the OPA1656. 500uV for the OPA1656) but that's largely irrelevant for audio applications. So I don't think there is a singular correct Jul 5, 2006 · SQ was about the same as other ESS-based dacs in that class. Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. 1-nV/√Hz noise density with an ultralow distortion of • Ultralow Distortion: 0. Also they are very hot. LDAC is better than AptX Lossless, apparently! Both of them can provide almost identical sound quality. Mar 17, 2019 · Not sure if we have the same understanding of "noise figure" but nevertheless, OPA1656 is less noisy than the OPA827, 2. Also FWIW, the 1820m with OPA1656 in it hasn't been recapped yet but they chart to still be reasonably healthy. Apr 30, 2021 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. 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 the tpa3251-based Aiyima a04. 9nV/rtHz vs. 5 metre cable at 33. Opa1656 has good phase response at high frequency. 53 MHz gain bandwidth product, 24V/us slew rate. 5-nV/√Hz noise density with an ultra-low distortion of 0. 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. However LDAC can stream 48kHz 16bit files at an extremely high accuracy, when upscaled to 96khz 32bit (900-990kbps). Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. 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. tnt-audio. 9nV/rtHz broadband voltage noise. You really don't want a tl072 dealing with 20mA into such low impedances. Tried putting in opa1612 today. Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. I don't care about listening tests or something else, just want to use the technical better one in my amp. I also have both the OPA1642 (FET-input) and the OPA1612 (bipolar input) in stock and I think these would be interesting candidates as well. PRODUCTION DATA. Feb 17, 2023 · I'd go with the LM4562 (= LME49720) instead. • Audio Effects Processors • Musical Instruments • A/V Receivers • DVD and Blu-Ray™ Players • Car Audio Systems 3 Description The OPA1652 (dual) and OPA1654 (quad) FET-input operational amplifiers achieve a low 4. Jul 4, 2009 · The Opa1656 has a much wider and better soundstage. Two identical gain 11 amplifiers were tested. Feb 11, 2021 · Yes. 4nV/rtHz both flat. Mar 17, 2019 · As compared with the OPA1656 which is 24V/us. Apr 10, 2019 · OPA1656 is positioned for audio applications: low noise and really good THD (-131dB) and high output current (100mA), but still needs a series resistor to drive capacitive loads unfortunately. 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. Below is a comparison between OPA1656 and OPA1642. Sound is more "color", and "massive". Mar 17, 2019 · To start, OPA1656 is definitely not a replacement for OPA1622, the two parts were designed for with very different applications in mind. Jul 4, 2021 · This doesn't look like a high quality pcb and it would be easy to lift traces. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. Mar 17, 2019 · About OPA1656 DC output offset: depending on gain, a low level circuit with the OPA1656 can show a few mV as output offset. Description: OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Mar 17, 2019 · OPA1656 is less noisy than the OPA827, 2. I've had an OPA1612 lose its mind in a filter circuit where an LME49720 worked just fine. Because of my role in the company and the nature of your question I can't give exact numbers, I can highlight some publicly available facts: 1. Feb 28, 2021 · The best sounding op amps for audio work. Presumably its temperature dependence is also a random variable with zero mean; when transistors 1a and 1b match perfectly, there is no offset and no temperature dependence, when VGS1a is greater than VGS1b you get a temperature dependence in one direction and when VGS1b is The different players sounded different. Dec 30, 2023 · I don't have the books you mentioned but I do have a book called Small Signal Audio Design by Douglas Self. Where OPA827 shines is DC precision (150uV offset vs. May 10, 2022 · Many audio opamps have GBW of 10 to 20MHz or so, so at a gain of 1000 the bandwidth will have dropped to 10--20kHz - completely inadequate for audio. Yageo FCR CF: Articulated and lively bass - maybe a tad too much and not the tightest, highs Feb 10, 2024 · Fosi Audio ZA3 Amplifier Review Apr 8, 2021 · LEAF Dual 9038Q2M VS Gustard X16 pictures inside Apr 5, 2021 · The prototype here is made with an OPA1656 dual opamp and the initial impression is that I was on to something with this idea, because it does sound very good. Here are the measurements of the dual mono and with different op amps (Sonic Imagery 994, OPA1656, LM4562). Craig 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. 00005% at 1 kHz. 7pF is easier to understand than 0 Jul 3, 2019 · WANTED: Happy members who like to discuss audio and other topics related to our interest. I hesitate to recommend those without simulating the circuit. The OPA1656 has very good THD + N. So far I don't hear any harsh sibilants (very clean) but it is virtue of my speakers. [] The performance of the CMOS audio op amps is actually fairly close and maybe slightly better than the OPA627, which was somewhat famous for its performance in this use case. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. The Opa1612 is the audio version so they made the specs slightly worse. Opa1642 sounds a bit smoother and silky at top end but a little bit fat in the mids. Great table. See attached, Jan is using the opamp for his project MRK 3 input box (input Jul 4, 2009 · The Opamp thread | Page 439 | Headphone Reviews and Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. I did check OPA1656 in voltage regulators and didn’t like elevated LF noise (compared to JFET opamps). r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. It's best use as an alternative to opa1612 when noise is not a big concern. Years ago the MUSES 01 was $35 in Japan and it was at the time way ahead of it's time. Are there any other The OPA1611 (single) and OPA1612 (dual) bipolar-1• Superior Sound Quality input operational amplifiers achieve very low • Ultralow Noise: 1. Sep 6, 2023 · I was using opa1656 with fosi v3 ever since I got the uni. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Jul 1, 2018 · In my honest opinion V6 will be really great addition to any audio system, it uplifts sound quality in every aspect compared to other cheaper Op-Amps. OPA1656 sounded worst, Muses 8920 sounded best. One S300iu integrated amplifier | Stereophile. 75V peak corresponds to) at 20kHz. 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. alongside with some aliexpress el`cheapos for like 2 buck a piece instead of 7. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. We would like to show you a description here but the site won’t allow us. edit: looking closer at the pics, the I/V resistors are 390R (about half the datasheet values, which makes sense as they // the outputs). Jun 5, 2023 · After working with some OPA1612 on my recent Topping PA5 D01 Module replacement project (at ASR), a friend sent me a few OPA1612 opamps he ordered when they were in stock since i couldnt get them anywhere. Page: 23 Pages. . May 19, 2017 · Something better than the LM4562? Mar 17, 2019 · As the open loop output impedance shows, OPA1656 appears to have an output stage similar to OPA1611 (2) which is involved with partial driving current. com • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. Also, a LME49720HA that costs 5 times as much as the PDIP or SMD version should also be interesting in terms of cost calculation. 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) - AD8599 ( not a very fast opamp but therefore it is easy to get it stable Dec 10, 2021 · This is my first time doing anything DIY with audio. To help others to understand what other audio components are being used, a SML SU-6 and SH-6 are used. OPA1612 is open sounding but is a little warmer possibly because of the lower midrange roundness. Jul 30, 2021 · If I could also request test of: OPA1642 ~ 2 Euro OPA1656 ~ 2. Any chance you have some measurements of the OPA1612 compared to the Sparkos SS2590 for the regular dual mono? I was also curious how many of the SS2590 opamps are Feb 10, 2020 · And I've tried many Opamps as well: the stock 5532, some directly purchased from TI 5532P and 5532AP, LME47920, LM4562 and finally some OPA1656 and OPA1612 on adapters. Desire to learn and share knowledge of science required. Same opamp could sound more open and with a darker background when tested in equipment #1, but may sound with a much closer scene and with a bit of hiss-noise when installed in equipment #2. 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. I prefer the opa2211 over the opa1612 (same chip but with less better specs). OPA1656 had respectable slew rate without slew boosting so I opted to forego that circuitry in the audio part. Details are better on the SS360x while Bass may have had slightly better slam on the Classics. TE CFS CF: Good soundstage, neutral mids, punchy basslines, overall detailed & open, superb vocal rendering, smooth highs, totally glare free. com with a TI insider involved. Assuming proper design, VGS1a - VGS1b is a random variable with zero mean. It offers exceptional performance in almost any audio application. Mar 5, 2018 · However, swapping opamps seems to be more dependent on the surrounding circuitry, their quality and PCB layout, than the opamp itself. 000015% at 1 kHz. 5Vrms signal, 80-kHz measurement bandwidth. Shameless plug I just highlighted the OPA1656 in my latest application note. Feb 11, 2021 · I think the problem I'm seeing with the OPA2156, and to a lesser extent the OPA1656 is that the 1/f knee for the noise is much higher than for the OPA1612 and OPA1642. He is interested in how such an operational, with 150db open loop amplification, has a small ringing at an amplification of (-) 1. I would not classify the OPA1656 as a high speed amp in this context. Feb 17, 2023 · Hello, guys. 8 bucks for a genuine part. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 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 Apr 21, 2019 · vs Burson V6 Classic. Would you recommend your OPA1656 for this task, or the OPA1642 (i'd be using SOIC to DIP adapters as the older TL072's are in DIP IC sockets). CMRR is not a big issue. It has the most stable input capacitance vs. It could sound pretty good, but one could get sound just as good from IC opamp designs. • Professional audio mixer/control surface • Guitar amplifier and other music instrument amplifier • A/V receiver • Bookshelf stereo system • Professional audio amplifier • DJ equipment • Turntable • Special function module 3 Description The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio Mar 17, 2019 · blue spectrum - 2 x 8 parallel OPA1642 , green spectrum - 2 x 2 parallel OPA1642 orange spectrum - 2 x 8 parallel OPA1656 , brown spectrum - 2 x 2 parallel OPA1656 Based on these measurements I expect the noise of a single OPA1656 to be 39nV/rtHz at 10Hz. It would cost some serious cash to get 8 channels of this quality. Together will make a really good composite amplifier, I will try this application at some stage. Dec 9, 2019 · Technically speaking, it's really hard to beat opamps like AD797, AD8599, OPA1612, OPA1656, so it might be safer to use one of these over the "exotic" ones, unless swapping opamps is really fun for you and you have enough money to spend on this hobby. 9038 recomendation is OPA1612, OPA1656 Mar 17, 2019 · The OPA1656 has 6dB more open loop gain at audio frequencies, hence the better distortion. The input is essentially shorted with 10mohm resistor in order to have a -140db control signal. It is great to have some measurements behind the OP amp selection. Transparency got way better. 1 nV/√Hz noise density with an ultra-low distortion of 0. Jan 21, 2022 · You have answered another one of my questions before I ask - input impedance - I was reading earlier about OPA1656 vs OPA1612, and bipolar vs FET. 1-nV/√ Hz noise density with an ultralow distortion of 0. Soundstage and placement felt more solid. TI has characterized the THD vs Rs for a lot of its recent devices, but alas not the OPA1656 (at least that I could find). 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. 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, low-noise 36-V JFET precision operational Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. The OPA1652 and OPA1654 op amps offer rail- Mar 17, 2019 · I'm using the OPA1612 in a new design, and a phenomenal piece of work that it. OPA1656 also has a pole-zero pair in the open loop gain curve to boost the open loop gain at audio frequencies (hence the 53 MHz gain bandwidth product). The LME49860 is another option. OPA1656 1/2 OPA1656 Input Output Pad Product Folder Order Now Technical Documents Tools & Software Support & Community 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. OPA1656 is a bit noisy at low frequencies. The question is rather moot anyway. Mar 14, 2010 · Overall balance with new amp is a little darker but with better transients. Dec 28, 2018 · Chiba Prefecture, Japan: Windows 11 Pro 64 bit Audio Dedicated DIY Silent PCs, JRIver, etc. What else, maybe cleaner more resolved sound at congested parts. 1kHz 16bit files without any quality downgrade. Feb 11, 2018 · Two cases were evalutated – in a Breeze Audio AK4495 based DAC, driving a ATHA5000 amp (listening via Beyer T1’s), and then driving a Grado RA1 clone (basically a CMOY circuit) to hear the amp character more closely through a set of Senn HD800. My OP1656 OpAmp Review. The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. Mar 17, 2019 · Again, it's the circuit topology that is the most important to get the best sound out of any op-amp. Description: Ultra-low-noise, low-distortion, FET-input, Burr-Brown audio operational amplifier. 1 nV/√Hz at 1 kHz 1. The V6 classic was a bit slower on the attack than the SS360x which gave it a bit smoothed over sound compared to the SS360x. Dynamics felt better, bass felt more defined and the upper midrange seems to have more air. OPA1612 sounds better than any transistor preamp I've ever heard and better then my own 6N6P 2 case -no barrels hold- 36kg monster preamp with a 100% double blind test win rate. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. チョイラボその8 - Choi LABO - FC2 The OPA1611 (single) and OPA1612 (dual) bipolar-1• Superior Sound Quality input operational amplifiers achieve very low • Ultralow Noise: 1. The OPA1611 and OPA1612 Jun 2, 2019 · Of course. Mar 17, 2019 · Azul headphone amp (BAF 2019) uses an OPA1611 + LH0033 composite. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety The OPA1611 (single) and OPA1612 (dual) bipolar-1• Superior Sound Quality input operational amplifiers achieve very low • Ultralow Noise: 1. Mar 17, 2019 · When we developed the OPA1656, this was also a major design target [] This article shows the measurements I took on the OPA164x family. File Size: 611Kbytes. Today, I still have the same 2020 amplifier and the opa1656 sound much, much better at a fraction of the cost. File Size: 3MbKbytes. Sep 14, 2021 · This leads me to believe there could be an issue caused by the back-to-back diodes across the inputs of bipolar (LME49990, OPA1612) and CMOS op amps (OPA1656). Jun 8, 2023 · I read that many like OPA1656/1655 very much. i expected them to put some Oct 15, 2014 · Texas Instruments' OPA1612 (dual) bipolar-input operational amplifier achieves very low 1. com In no case did I have too high expectations regarding the sound May 6, 2022 · Opamp better than OPA2604 with big soundstage, and Feb 11, 2021 · The subjective sound is incredible. 9nV/√Hz voltage noise density and 6fA/√Hz current noise density. 000. 000035% (-129 dB) at 20 kHz and improves audio signal fidelity across the full audio bandwidth. This device features excellent output current drive capability, offering rail-to-rail output swing to within 250 mV of the power supplies with a 2 kΩ Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). If a transient causes the op amp inputs to be pulled apart, the differential input voltage forward-biases those diodes causing a large input bias current. I have diyinhk es9038pro board and try muses8920 for i/v and LPF. I felt a great improvement overall. Composite amplifier is one of the best application with opa1656. 1/f corners: OPA1612 ---- 10 Hz OPA1642 ---- 20 Hz OPA1656 ---- 1 kHz OPA2162 ---- 1 kHz It also looks like the OPA1642 and OPA2162 are not happy driving 600 ohms, but the Sep 14, 2021 · The LM4562 is an exception, but otherwise it are the fast op-amps that JRA has trouble with: Misbehaving: OPA1656, gain-bandwidth product 53 MHz LME49990, 110 MHz OPA1612, 40 MHz Behaving well: OPA2604, 20 MHz OPA627, 16 MHz OPA2107, 4. Sound is very good, especialy a voice but sometimes I hear a little distortions. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. common mode voltage that I've measured on any op amp. LME49720 sound is boringand too light. There are many reviews of audio hardware and expert members to help answer your questions. But that does not say anything about the SQ. OPA1622 was targeted specifically for headphone applications, while OPA1656 is a more general purpose device meant to address analog signal processing in line level audio circuits. Mar 17, 2019 · The good news is that in audio, impedance levels are relatively low so parasitics need to be larger to have a bad effect, and most audio opamps are not really high speed. I used though the better TIs in output stages of middle class DACs as these benefitted from a more round /warm presentation with less details, as that masked their weaknesses and in fact Feb 11, 2021 · looks very similar to the eighth image from post #2 of Bel Canto's S300i/S300iu - driven by dual mono Icepower amplifier modules with switch mode power supply - go to Inside the Bel Canto S300i integrated amplifier | Audiokarma Home Audio Stereo Discussion Forums and Bel Canto e. 3 MHz. I haven’t tried it for audio as outright replacing JFETs with CMOS looked like blasphemy to me. Download. Also audio opamps may have enough input offset voltage to saturate the output for such high gains - if the input offset is +/-3mV and the gain is 1000, the output offset is +/-3V, or maybe much Sep 14, 2021 · Preamplifier Input Parallel Resistor (22k) Shootout: 1. OPA1656 Mar 17, 2019 · Many high-end audio manufacturers still use THT technology and avoid SMD at the sound-relevant points. The FET-input architecture achieves a low 2. ->Software Crossover EKIO->Multi-Channel OKTO DAC8PRO->multiple amplifiers->direct to SP drivers of fully renovated YAMAHA NS-1000 (not NS-1000M!)+FOSTEX T925A (L&R)+YAMAHA YST-SW1000 (L&R): ACCUPHASE E-460, YAMAHA A-S3000, A-S301, SONY TA-A1ES, ONKYO DAC-1000, OPPO SONICA DAC, KORG DS-DAC-10 , IEC 60268 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. Classics are a bit warmer while SS360x is a bit brighter presentation. 2. -131 dB THD+N at 1kHz, 600 ohm load, 3. Since I am not interested in the V6 Vivid Dual that it comes with. Of course that is because in LTspice all instances of the device are identical. Mar 17, 2019 · The OPA1641 would be slightly better. AptX Lossless is a truly lossless codec, so it can stream untouched 44. My first set of separate OpAmps, ushering my foray into the brave new world of OpAmmetryLoL Dry, crisp, analytical and non-intrusive (as compared to the bold NE5532) is what I would describe this opamp as. Now I use OPA1612 for i/v and LPF, distortion is gone but sound is flat. Oct 2, 2020 · I want to drive a non-inverting OPA1656 from the wiper of a volume pot -- which means a range of source resistance for the OPA1656 from 0 to <del>Rpot/2<del> Rpot/4. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. • Professional audio mixer/control surface • Guitar amplifier and other music instrument amplifier • A/V receiver • Bookshelf stereo system • Professional audio amplifier • DJ equipment • Turntable • Special function module 3 Description The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio Sep 25, 2019 · Texas Instruments OPA165x Ultra-Low-Noise Audio Operational Amplifiers are designed specifically for audio and industrial applications where maintaining signal fidelity is crucial. - Page 2 The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. The OPA2156 has amazingly good distortion as well, you just might want to load the output a little less than a 1656. The applications that slew rate limiting is important to take into account is using the device in non-audio applications. May 23, 2018 · The first time I did test with opa1642 opa2156 (precision opamp version of opa1656) opa1612. Why, with so many zeros in the distortion figure don't TI quote it in ppm? 0. 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has its first resonance at 50 MHz, a 1. Sep 27, 2019 · The high bandwidth and high open-loop-gain design of the OPA1656 provides a low distortion of 0. 15ppm is much easier to understand and compare performance figures than 0. Ha ha it's funny because I'm a wide and far reached detailed and accurate fanboy and some people find too many details to be annoying. 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! Part #: OPA1656. The OPA165x Op Amps offer a FET-input architecture that achieves a low 2. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety May 15, 2022 · Now i tested opa1612 with lme49720 and 1612 is better in my opinion. Mar 17, 2019 · Maybe I'm too thick, but I still don't get it. Page: 42 Pages. Every amp. The OPA1611 and OPA1612 Part #: OPA1656. In my case compared to OPA1656, OPA1612, Muses 8820 and some other cheaper op-amps - V6 added more quality in every aspect: Bass became more pronounced, Vocals became more detailed and more Mar 17, 2019 · Hi JohnC: I found this thread last night as I was going down rabbit-holes looking for newer op-amps to replace TL072's in a professional audio device that has about 18 of them in each channel. Both fet based opamps sounds a little bit more solid in the bass (not quantity but the imaging and the texture). 6 fa/rtHz broadband current noise. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. shqi twtapl alrb kckxh qzzvhy fbcojky nqq ojmunr kazw zrxnzj