Opa1612 vs opa1656 for salel

Opa1612 vs opa1656 for sale. He does test the TL072 against some more modern ones, but not the OPA1612 due to there being no DIP version I think. I think I will go back with the LME49720 on my TPA3255 V1. Dual customzied solution will give unmeasurable distortion (possibly -180db). Nov 26, 2017 · thanks for your tips! i have tested the opa2604 and the LME49720 compared to the ne5532. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC package. 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. Mouser offers inventory, pricing, & datasheets for Texas Instruments OPA1612 Series Audio Amplifiers. Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136 I use these amplifiers for pro audio. forami. But I like the OPA1692 better on my IRS2092. This feature accommodates the power supply constraints of many types of audio products. common mode voltage that I've measured on any op amp. These were wired to use USB input to the Swing from my laptop, the DAC (fixed voltage) RCA outputs of the Swing to the RCA inputs on the Fun, and the Hifiman He560, Sennheiser 800, and Campfire Cascade (with Cloth pads) used for all listening sessions. I prefered the sound of my DAC with the OPA1656's hands down even over the discrete op-amps. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. It has a very good dynamic range and a low level of harmonic distortion. Aiyima was gracious enough to send me a unit for review and evaluation. 25V to ±18V or (4. com with a TI insider involved. OPA1611, OPA1612 www. 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. 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). Taking advantage of a wide power supply range and mounted on a DIP8 bracket, it can replace many other models. May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. Compare the datasheets. from China. As per datasheet Fig 7, OPA1656 achieves this pretty well with loads of 2k (or more) @ output voltage 3V(rms) OPA1612 achieves this flatness of THD+N curve , eg in inverting mode G=-1 (Fig. File Size: 611Kbytes. Brand New. 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. Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. 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. 000015% at 1 kHz. 7 of OPA1612 datasheet) Jul 26, 2020 · I agree with you, OPA1612 is really good regarding details resolution, OPA1656 has the best of both world : ultra high definition regarding micro details and very neutral but still warm. Soundstage and placement felt more solid. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. Dynamics felt better, bass felt more defined and the upper midrange seems to have more air. Transients are stronger, both rimshots of snare drum and big-band trumpets. 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! May 15, 2022 · LME49720 vs OPA1612 vs Muses02. Dec 6, 2018 · Just replace the original op-amp with one with a similar specification, if it's not possible to find an exact replacement. Eric Mo Intellectual 775 points Part Number: OPA2134 Other Parts Discussed in Thread: OPA1656, OPA134. Apr 10, 2019 · I have interested in low ESR Electrolytic Capacitors to power the Opa1612. This OPA1656 OPA from Texas Instrument offers very good performances for audio use. The NE5532 is perfectly fine. Nov 30, 2021 · OPA2134: OPA2134 VS OPA1656. File Size: 3MbKbytes. the differences aren't huge, but big enough to make a change worthwhile. Download. It's best use as an alternative to opa1612 when noise is not a big concern. Description: OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational With that being said, there will not be a huge noise performance difference between OPA1656 (~4nV/rthz) vs OPA1678 (~5nV/rthz) when the thermal noise is already 11. Jul 4, 2021 · The article linked below isn't the be-all and end-all on op amps tests, but very informative. 1-nV/√ Hz noise density with an ultralow distortion of 0. It offers exceptional performance in almost any audio application. . Dec 28, 2017 · There are some things to watch out for when swapping op amps. Sep 25, 2019 · The OPA165x operates over a very wide supply range of ±2. Thread starter oldphaser; Start date Jan 10, 2016; oldphaser Chief Journeyman. 25 V to ±18 V (4. Jul 5, 2006 · SQ was about the same as other ESS-based dacs in that class. Also LME49860NA but I can't find them anymore. Composite amplifier is one of the best application with opa1656. They said no problem, easy to work with and quick follow-up. NE5532 is a very good amplifier especially for the price ($0. But that does not say anything about the SQ. I don't care about listening tests or something else, just want to use the technical better one in my amp. Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). Apr 6, 2020 · The OPA2134 is very ordinary, I consider it a side step to the NE5532. Now, we run through a hand calculation to find the total noise of a simplified audio 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. 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. I did an A/B comparison to LME47920 (metal cans), burson V5i, V6 and also the Sparkos Pro discrete op-amps on one of my DAC's. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Mar 17, 2019 · The OPA1641 would be slightly better. 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. The low voltage noise combined with the low current noise make this device great for low and high impedance applications such as a high gain microphone pre-amplifier. Member. I Part #: OPA1656. The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. Opens in a new window or tab. Joined Sep 8, 2012 Messages 848. 6 fa/rtHz broadband current noise. 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. (If I am not wrong OPA1656 is a really modern OP Amps from March 2019 vs 2017 for the OPA1692). I think it's a matter of circuit design and implementation. It ensures a very low noise density as well as an extremely low distortion level. 54. Does anybody Apr 5, 2021 · The original amp has the OPA1656 and the other has the OPA1642. I would have no problem staying with them, but I like tinkering. 1 nV/√Hz noise density with an ultra-low distortion of 0. Thread starter forami; Start date 2022-05-15 10:48 am; Jump to Latest F. Mar 17, 2019 · In fact it can even introduce discontinuities into the gm vs Vdif curve. For the case of Oct 15, 2014 · Texas Instruments' OPA1612 (dual) bipolar-input operational amplifier achieves very low 1. Old op-amps such as the LF412 and TL072 are more than good enough for 99% of audio applications. Feb 11, 2021 · 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. 9nV/rtHz broadband voltage noise. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. Jun 24, 2013 · Initial impressions, very detailed opamp for TPA3255, airy, has 'bloom' sound, smoother and less harsh than OPA1656. OPA1612 is a great amplifier, however, it is bipolar (input type) and when used immediately at the front-end of a guitar input, the input current noise (1. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial Dec 11, 2019 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. It could sound pretty good, but one could get sound just as good from IC opamp designs. 5 V to 36 V) on 3. I looked at the Slew Rate as my main 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. Hi Ervin, Yes those devices are very popular, unfortunately I don't have any way to know for sure when they are back in stock. 9mA of supply current. My main attraction to them is a higher ripple current in the AC to “ power” the board onward as the opa1612 only requires low quiescent current of 3. >100mA output current. It has the most stable input capacitance vs. 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. Also pricing for 1000+ isn't really that expensive for opa1656, opa1602, opa1612. Apr 21, 2019 · Sound: For purposes of these tests, I started out with a Burson Swing and Fun DAC and amplifier. 5). May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. He gives strong recommendations for some applications and also caveats about ill-informed op amp rolling. Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. Jan 10, 2016 #1. 4 nV/rthz. Total Noise of OPA1656 vs OPA1612. C $7. Other cheap ones on my radar - OPA2134PA, OPA1612, LM4562NA. 2022-05-15 10:48 am #1 opa1655 , opa1656 SBOS901C – MARCH 2019 – REVISED SEPTEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, Sep 6, 2023 · I was using opa1656 with fosi v3 ever since I got the uni. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. Hi Team, My customer wants to Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. Description: Ultra-low-noise, low-distortion, FET-input, Burr-Brown audio operational amplifier. Page: 23 Pages. Other Parts Discussed in Thread: OPA1612, OPA828. 7 pA/rthz) will multiply with the pickup resistance (varies quite a bit, say typical is 10 kOhm) to become the 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 OPA1656 - Better imaging / separation of instruments. 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 Nov 8, 2023 · Photos: 3 amps side by side (MAX, Fosi V3, original A07), close up of front of the A07 MAX, rear panel of the MAX) This is a mini-review of the new Aiyima A07 MAX class D amplifier from my "average Joe" perspective. Free shipping. The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. Jul 4, 2009 · I was also looking at OPA1612, AD8599, AD825, and OPA627. opa1655 , opa1656 SBOS901C – MARCH 2019 – REVISED SEPTEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, 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. I ended up staying with this one. I felt a great improvement overall. ti. Jan 10, 2016 · OPA1611 vs OPA134 or OPA1612 vs OPA2134. CMRR is not a big issue. Opa1656 has good phase response at high frequency. Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. What I am scared of is instability, I'm not sure if the P2 has bypass caps for the NE5532, and not exactly sure how bypass caps work with dip-8 sockets. Buy It Now. Part #: OPA1656. I also refurbish large format recording consoles. Pin can be left floating or connected to any voltage between (V–) and (V+). Standard opamp for that has pretty much become OPA1612. PRODUCTION DATA. I did a better HF bypass there in the opamp section. Mar 17, 2019 · I purchased 10 OPA1656's. 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 Jul 3, 2019 · FYI I'm about to order an Audiophonics HPA-S400ET with OPA1612 instead of OP275. the ne5532 looks a bit harder, narrower and more direct, the other two a bit more relaxed and Texas Instruments OPA1612 Series Audio Amplifiers are available at Mouser Electronics. We would like to show you a description here but the site won’t allow us. e. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. 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. 3 MHz. 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. 4 Calculating Voltage Noise at the Output. The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. 5 metre cable at 33. Joined 2022. Regarding the tone stack, if there is enough gain in the front-end, the input-referred noise may not be impacted by the resistances. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. OPA1656 Mar 17, 2019 · The OPA1641 would be slightly better. Transparency got way better. 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. 1 I will test OPA1692 and OPA1656 again when my TPA3255 PFFB arrives. 5Vrms signal, 80-kHz measurement bandwidth. Tried putting in opa1612 today. 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has its first resonance at 50 MHz, a 1. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. 5V to 36V) on 3. In all, I will say the changes are noticeable, but not earth shattering. 6 mA but I know I’m in the Op amp thread so I don’t want to take the thread off topic. 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. but the difference between opa2604 and LME49720 is much smaller than the difference between these two compared to the original ne5532. From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. 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 OPA1656 Op Amp Ultra-Low-Noise Low-Distortion FET-Input Audio Operational Am P M. The FET-input architecture achieves a low 2. OPA1656 sounded worst, Muses 8920 sounded best. 53 MHz gain bandwidth product, 24V/us slew rate. 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. -131 dB THD+N at 1kHz, 600 ohm load, 3. 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. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. Page: 42 Pages. Jan 27, 2024 · The OPA1612 has lower noise and distortion than OPA1656. So you'd be "degrading" the performance by going that route (even though both are excellent). Currently, I require opamps in the DIP package. Dear all, aiming to keep THD+N figures constant over the audio frequency range. Apr 8, 2021 · So there is a huge possibility of combinations) But I found my happiness as follows: - 5 X OPA1612 (Bi polar OP amps work generally well with DACs) - 2 X OPA1656 (They are CMOS op amps but I really love their signature, very natural with a flat response and great soundstage). It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Sep 27, 2019 · The OPA1656 operates over an ultra-wide supply range of ±2. edrsc fgpi hhe ffn clzvrun lpgv uypzke vvd dcduf jane