Opa1642 vs lm4562 reddit. AD8066 vs. 16. However, these are a way to get started in audio for a very low price. 5Vrms signal, 80-kHz measurement bandwidth. Joined 2011. This is the best technical specification and the most expensive among them. Had it tested in Voltage Amplification stage, but also in LPF (test done with LME49720 for Apr 11, 2021 · OPA 2132P I do not find it suitable as it gives a warm sound while AD 823 is 100% neutral without counting the sharpness and also the detail. pdf. No, my 4565 are in SOIC package. 00005% @ 1 kHz. I like the low noise aspect of it, though it's pretty expensive. Granted, I have only rolled a few op-amps through the XM9: OPA2134PA, AD8066, and OPA1642. AD8066 experience based on 2xAD8065 on brown dog adaptors and AD8620 based on 2xAD8610. 2013-09-20 1:36 pm. THD and THD+N (SINAD) at 1kHz/5W/4ohm measured with LM4562 View attachment 104317 Jul 5, 2006 · The LM6171 sounds a little different and better, as I recall. So THD measurement value of -25. 4GHz). 45. In my experience of opamp rolling the LM4562 (plastic or metal) will take a lot of beating - It was after all designed for audio, unlike some chips (eg. BUT the 4562 still has MUCH less (-36db) THD, is faster (~2x), and better CMR (-20db). The LM4562 was introduced first. 2,500. $5,000. The LM6172 is really very sterile (color wise ), and (if not necessarily "thin") kind of surgical (without being all that detailed, compared to the audio opamps of the last generation). When I connected to the i-pod and accessed the Internet via wi-fi, I heard a burst noise called “BoBoBo…”. Manufacturers Standard Package. Aug 22, 2007 · LME49720 Vs LM4562. Output Current characteristic curves seem to behave in opposite manners. You can see this in the specs for the tpa3251 and tpa3255 used. In 2022 one would suggest OPA1642 and OPA1656 methinks. #47. Glenn2 said: Both are quite good (and LM4562 is developing a cult) but having tried both I find LM6172, AD826, AD8620 better for duals in that order. ] I encourage people to make a start in audio, since listening to music is a real pleasure. 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. Many opamps have a max supply of +/-18Vdc, so simply rolling opamp into such amps would cause them to smoke. 7 dB re 150W/4ohm. 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. who builds large PA speaker systems. 6 fa/rtHz broadband current noise. . Nov 22, 2006 · AD8066 vs. Jan 10, 2016 · Jan 10, 2016. OPA1642AIDR – Audio Amplifier 2 Circuit Rail-to-Rail 8-SOIC from Texas Instruments. Aug 22, 2007 · Joined 2013. To utilize AD8620 requires some knowledge on the circuit. Listening only after ”hifi jargongs” like soundstage depth and width, then the opa1642 was the winner. Edit: There is also a quad version of OPA1642, called OPA1644. Feb 11, 2021 · Below is a comparison between OPA1656 and OPA1642. The input is essentially shorted with 10mohm resistor in order to have a -140db control signal. Mar 17, 2019 · 2019-07-04 11:22 pm. Find parameters, ordering and quality information. According to specs I would think the OPA1642 would be one of the best compromises cost vs performance wise. TI’s OPA2132 is a Dual, SoundPlus™ 8-MHz, 5-pA, High Performance Audio Operational Amplifiers with FET inputs. Nov 10, 2006 · It is the LM4562 that is EVIL. Apr 23, 2007 · The LM fit also fine in the output buffer of the Tag. OPA1642 would be my prime recommendation. Aug 28, 2009 · In comparing the spec sheets of OPA627B and ADA4627B-1, the current noise specs are identical (1. . LM4562 . The price is US$ 3 compare to NE5532P is less than US$ 1 each. OPA1612 ~ 6 Euro. I believe this is caused by the design of the ae-9. 5,000. Jan 7, 2021 · I have ordered Mean Well RS-100-24 SMPS power supply, 24V/4. Probably you'll need an adapter PCB. 5nV/√ Hz noise density with an ultralow distortion of 0. Other Parts Discussed in Thread: LM4562, , INA1620, OPA1622, OPA1656, OPA828, OPA1642, OPA1678, OPA1612, BUF634A. Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. Aug 22, 2007 · IMHO LME49710, LME49720 and LM4562 performs identical, as long as identical employed. And I have some 5532 in Dip 8 package. Features include 5. AD8065x2 was smooth but a bit boring, lacking bass If you have questions about quality, packaging or ordering TI products, see TI support. Pricing and Availability on millions of electronic components from Digi-Key Electronics. (NOTE: We once owned a recording studio together back in the late 1970's through the early 1980's. com and all are unity gain stable. 9 nV/√Hz at 10 kHz Feb 4, 2014 · The thread was started in 2014. The LM4562 is decent but the LME49723 sounds better. The LM4562's EMI seems to be weak against Wi-Fi radio waves (2. 00009. And both of them are SMD only. To me, the sound is just too laid back. Well, I have a Fosi v3 on the slow boat, so I can't comment specifically on that one. The last one above, the OPA627, is a single channel op The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. if you can employ it properly. Idea taken from Dicks site. I think the best (in terms of specs) Quad Bipolar Input audio OpAmp available today is the OPA1604. All op-amps in this test are DIP except the OPA1642 is in SOIC package. Then, after a few months rolling and marking them out of ten, put the best one back in, which will be the LM4562. Digikey apparently knows that the LM4562 and the LME49720 are the same part. In a single-supply configuration, where the load is connected to the negative supply voltage, the minimum load resistance is 2. ADA4625-1/2 are supposed to be even better than the ADA4627-1, though I've yet to try them. Since the input signal is -34dB and the harmonics are +66dB, the distortion factor is 100dB emphasized and measured. OPA1641-Q1, OPA1642-Q1 SBOS791A–JUNE 2017–REVISED NOVEMBER 2017 www. Reddit . They have the LME49710 and 40, but they have the dual listed only as the LM4562. the best sounding is OPA1612 ,not for driving headphones -low output current drive ,3ma current consumption. I have terribly damaged my Sound Blaster X-FI with so many op amp changes. Last edited: 2010-01-22 9:51 pm. Mar 17, 2019 · 2022-07-15 7:58 pm. May 3, 2022 · Joined 2022. Aug 22, 2007 · Yes, the noise of the NE5532 and the LM4562 is equal at 3KΩ source impedance; below that, the 4562 is better, above that, the 5534 is quieter. Jul 30, 2021 · OPA1642 ~ 2 Euro. If you have questions about quality, packaging or ordering TI products, see TI support. With OPA827 and OPA627, the second harmonic (40kHz) was larger than the fundamental wave of 20kHz, and 40kHz was regarded as the fundamental wave, so THD could Oct 8, 2001 · 2001-10-08 9:07 pm. Y. May 19, 2017 · Joined 2006. Setting this amp for KEF Q350 with SMSL SU-6 DAC. #21. Depending on the application I would use one of those two. Re: Re: AD8066 vs. are clearly better, quieter. Opamps have very little influence on the overall sound. There is only 2 large capacitors in the power supply 1 x 1000uf 16, and 1 x 2200uf 16v, and 4 x 100uf capacitors of various values and about 4 x 47uf 6. OPA1656 sounded worst, Muses 8920 sounded best. In PDIP form, 100 qty is 66¢; so about 2/3rds the price. The OPA1642, however, is also LESS expensive ($2. I cannot recommend a 48V power supply because of the A07 internal temperature with the 48V PSU, in case I May 19, 2017 · OPA2211A/OPA1612 also sound a bit better than LM4562, IMO. Mar 5, 2007 · LM4562 -- not by a very large margin ! 2. Except opa1656 rest of opamps are available on rsdelivers. To my ear that upgrade took the device from being good for the price to just plain good. Standard Package. 1nV/√Hz @ 1 kHz, with distortion of only 0. Transients were still good but the HF levels seemed to be a bit rounded off. The OPA2134 is more a better replacement for the TL072 when you need a FET type. 08 @ Mouser). #4. The cost is about $30 in a local store. Prodigy 230 points. The OPA164x series of operational amplifiers are capable of driving 2-kΩ loads with power-supply voltages of up to ±18 V over the specified temperature range. TI’s OPA1662 is a Dual SoundPlus™ low noise (3. Either they did this for marketing reasons or the are different chips. The 4627 is faster the the 627 (82v/uSec vs. Jun 8, 2023 · OPA828. It's the output op amp of my Ensoniq audio pci soundcard. opa2107(2003) and lm4562(2006) also old headphones sen hd650(2003) beyer dt990(1985). Jul 4, 2009 · Sound quality improvement is slow. [An inexpensive used one is a rare find. (Normally one would probably point to LM4562 as being the best compromise, but I think the Quiescent Current of 10mA is very high) Feb 2, 2017 · OPA1642 or LM4562 in IVY III which did you like better? I'm picking up where I left off in this thread Jan 7, 2021 · With LM4562, the noise was -74. ) He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. LM4562. @JonSnell Electronic - perhaps you used Octopart to see Mouser's stock. ago. i tryed lme49722 opa2134 and opa1612 , --. #10. The LT1028CS8 is what I use now and it's excellent. The OPA1602 and OPA1604 series of op amps offer rail-to-rail output swing to within 600mV with 2kΩ load, which increases headroom and maximizes dynamic range. Two identical gain 11 amplifiers were tested. #62. If it is well implemented, non prone to oscillation, with high input impedance and within supply specs, it should work well. ---then opa2134 the best all around as preamplifier it can be used at high gain 6-10 times,very good sounding and Musical,good for biassing in class The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. The data sheet is very handy for audio designers working with 600Ω loads, but also presents apparently conflicting specs, and lacks 2KΩ Jul 19, 2023 · The most ”spacious ” perceived sound with the biggest soundstage was with opa1642 - but the bass pitch wasnt as clear to follow in the music listening as it was with the lm4562. So you would need an adapter either way. 5A. Dual OPA DIP8 (Unit) This OPA1642 OPA is mounted on a DIP8 socket, enabling it to be easily connected to a circuit accepting this format. Jan 30, 2004 · LM4562 and LME49720 are the exact same part just different model stamped (stated by an ex-employee) The LME49860 is just a LME49720 that passed a higher voltage test. The hiss is slightly higher from Aiyima a07, but still very low. 7mV max) than the OPA2134 (+/-2mV max), but the LM4562 also has a higher input bias current (72nA) than the OPS2134 (+/-100pA). OPA1656 ~ 2. Rob, NE5532 is really a good OPAMP compared to many others. Jun 19, 2021 · Previously I am using BB OPA1642. Hi team, The following two sets of Output Voltage vs. This OPA1642 with JFET input achieves a low noise level of 5. NE5532 incoporates BJT circuitry inside, but if u wish to go something with FET circuits inside AD825 is the best choice. The LM4562 has a lower offset voltage (+/-0. com (DIFF) Differential input voltage ±VS V IO Output short-circuit(3) Continuous Jun 6, 2010 · But specs aren't everything - The humble NE5532 can sound very good and is well down the spec sheet. 想请教下关于LME49710、LME49720、LM4562运放之间的关系，以及它的输出架构. Apr 6, 2020 · The NE5532 supports a max supply voltage of +/-22Vdc and a nominal supply of +/-15Vdc. Oct 29, 2009 · The same is true about the LME49722, and others (LM6172 above all). The NJM dun latch or have popcorn noise. If your application circuit has low enough valued resistors Nov 22, 2006 · 2007-05-31 11:37 pm. Home. IMO, the ADA4627-1 has a fuller, more "musical", sound than the somewhat thin/sterile LM4562, whilst still retaining nicely detailed highs, and remains my favorite sounding op amp to date. 5nv/6. You can replace NJM2068 by LM4562. I have tried muse02, muse 8920 didnt feel they were worth the hype or price. 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. The infinite-gain multiple-feedback circuit for a low-pass network function is shown in Figure 30. I replaced TL074 with OPA1644 (4 ch). OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers 1 Features • Ultra-low noise: – Voltage noise: 2. 9 dB re 5W/4ohm and 102. The LME49720 is available in 8–lead narrow body SOIC, 8–lead PDIP, and 8–lead TO-99. As far as the subject of chassis vs earth grounding, it's a surprisingly complicated subject and there's a lot of misunderstanding being touted as truth out there. 296-46319-6. They don't stock both. Aug 22, 2007 · Again the urban legend (fake news?) surfaces. I was surprised because, I'm not a 8620 lover. Bottom line, check the supply voltages, pin 4 and 8. 1-nV/√ Hz noise, low THD+N (0. Instead of the default NE5532 Op Amp chip, Aiyima factory can customize the A07 with a different Op Amp chip for you for a different sound signature. Facebook Twitter Reddit Pinterest Tumblr WhatsApp 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. 3nV/rtHz) and distortion (-124dB), wide bandwidth (22MHz) audio op amp. Voice reproduction was BEST in the NE5532 ! Unfortunately it was a bit low in the HF. MUSES8820 is the best, IMHO. 2020-01-24 6:34 pm. #6. Main caps are already real Nichicons and other components can't be easily replaced. 22dBc=548%. When LM4562 latches, usually with a design optimised for HiZ sources (though I first came across this in a LoZ design), your hacksaw is of use only as a very poor quality hammer . T. LME49860 is LME49720 with higher power supply range. OP275 ~ 3 Euro. Description for the OPA1642-Q1. If there are more complicated parts (especially active parts) in the FB path, a faster OP can be a problem. A few things mentioned in this post. Part Number: OPA2210. and has a datasheet of its own). I think a difficulty all reviewers have is when they offer an opinion on something which is a well known arguing point for audiophiles. 9nV/rtHz broadband voltage noise. Spend money on opamps, lots of them. Figure 30. LM4562 vs LM358 . Never heard of it. You are right, OPA1656 is interesting part, but as anything in engineering field it depends on user case and circuit environment. The OPA132UA is the best FET opamp that I know of. Thread starter Ryssen; Start date 2007-08-22 9:19 pm; Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. 53 MHz gain bandwidth product, 24V/us slew rate. Low noise opamps need to be used with low noise surrounding circuits though so just rolling in a lower noise opamp won't always produce improvement. Unfortunately, OPA1642 is not available now. #701. $10 so no downside. I still want to try (in the DAC I mentioned) the THS4051 and the OPA1611. These features make the OPAx134 a robust, high-performance operational amplifier for high-voltage professional audio applications. in some line level circuitry. Mar 17, 2019 · That seemed like a reasonable target for the supply current of the OPA1656 as well. Is there any difference between these two op-amps? This thread is archived Reddit . I've also tried OPA2604 - little bit smoother than the NE5532. However some manufactures (eg, NAD 3150) went for +/-18. These devices operate over a very wide supply voltage range LM4562 op amps. View attachment 104316 Please note slightly lower noise and also better rejection of mains multiples. For OPA1652, the output current (limit) appears to decrease with increasing temperature. Mar 31, 2010 · The XM9 requires JFET dual op-amps, and so far the LME49880 is by far the best that I've tried to date. #123. Ialso used a pair of Mullards 5654 8100 valves instead of the Jan 5654 stock that came with the T6 pro which can be a little bright at the top end but the Mullards are like the opa2604, nice and thick sounding with a strong low end. The new contender is National Semiconductor LM4562, the price in in the middle of both two. There was. dotneck335 said: An OPA1612 has slightly better specs than an LM4562---less noise and distortion, faster, and more output voltage swing. TL072 was VERY good !! Equal or better than 4562 in some respects. However, I have done a little OpAmp rolling on my Aiyima A07. All sold out. A distributor that calls on me at work has a theory about why it is dual numbered. ti. 2013-06-30 1:38 pm. common mode voltage that I've measured on any op amp. May 13, 2015 · NE5532 is dual channel opamp, so you can try few of these: opa2134, LM4562, opa1642, opa1656 without burning too much money on rolling opmaps. 22dBc means -125. OPA1664 is in stock at Mouser as a BJT input opamp replacement. 2022-05-03 8:13 am. 6fA @100 Hz), and the voltage noise favors the 627 only slightly (4. if that even. Mar 7, 2008 · If you like the LM4562 for the buffer, try a LME49720 or the best of that family the LME49710HA module. This has been dispelled by people employed by NS and TI -- back then and currently. 2017-06-04 7:42 pm. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. 8 kΩ at a supply voltage of 36 V. The price for the new LM4562 also dropped significantly at the beginning of 2019. Every amp. Then National Semi, for marketing reasons, decided to create a new part number. Mega File Upload - hfe_technics_sl-pg440a_service. The OPA1641-Q1 (single) and OPA1642-Q1 (dual) series are JFET-input, ultra-low distortion, low-noise operational amplifiers (op amps) fully specified for audio applications. NJM4580 requires more care, usually a high-current not-too-fast FET opamp is suitable. (Supported by same response graphs in their datasheets) Anybody who has played with these opamps care to share their opinion on how they sound? (HA / Metal can models excepted) May 19, 2017 · OPA1656 24v/uSec slew rate; LME49720 (same as LM4562) 20v/uSec slew rate: 1656 is a LITTLE bit faster. I have a Fosi BT30E and the Ayima A07 with upgraded Lm4562 opamps and very happy with both. LME49720 is LM4562 with a better manufacturing. The HA are metal can opamps and the LME49710HA is a single channel so you require two of them with an adapter but they are excellent and have a similar signature to the LM4562/LME49720 but with further refinements. Noise and distortion wise OPA1641 or OPA827 perform better. Other Parts Discussed in Thread: OPA1652. It appears that the OPA1611/2 have a lower noise voltage The LME49720 is unity gain stable. Dec 6, 2018 · The OPA627 is mainly good for very low input bias - usually no need for this with audio. 那LME49720又是什么呢，而且LME49720的 Jan 19, 2023 · 2023-01-20 12:02 am. 00003% at 1kHz. Jul 25, 2016 · So for a low cost the LM4562 or OPA2134. I have rolled Bursons, Sparkos labs and other opamps and noticed very little difference between 3 Description. #3. If you have only $100 - $200 to spend, you can't afford products in the next tier up, like the Yamaha A-S301. OPA134 2nd Order 30-kHz, Low Pass Filter Schematic. Do what I did. Very nice presentation in the link! Thank you. -131 dB THD+N at 1kHz, 600 ohm load, 3. The Aiyima a04 with lm4562 is dead quiet - no hiss at all. Aug 24, 2012 · Member. The OPAx132 is the slightly better version for DC critical applications. Thanks for that recommendation. 5 Euro. OPA1642AIDGKR – Audio Amplifier 2 Circuit Rail-to-Rail 8-VSSOP from Texas Instruments. If you don't know or don't care, just stick with the default and save the money. But the only REAL advantage of an FET 1656 over the bipolar 4562 is much less CURRENT noise---so any application with a source impedance of ≥3KΩ will have lower noise with the 1656. Sell the others on auction website for little money and let someone else enjoy rolling them. 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. Likes. (I have not compared. The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications. I also tried the lm6172 in the Tag but preferred the AD8620. LM4562 AD823 AD8620 OPA2132 OPA1642 LM6172 OPA2227 OPA627 and many others. But definitively not in the LPF at DAC output of the Tag. Order today, ships today. I soldered OPA1642 today to my card with 8 small wires. 5Vdc. 3 v caps, Service manaul. May be that is reason why LM4562 is popular with many OEMs. In my opinion, the Aiyima a04 with lm4562 sounds a little better than a07 with the stock ne5532. You're better off getting a higher end amp at that point. I think it sounds better. Sparky14-1982. With Phono Preamps…LME49710 /LME49720 TO-99, metal can. indicate that the LM4562 has not been relabeled to LME49720 (which is listed too. Aug 22, 2007 · Joined 2007. The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. For OPA1642, the output current (limit) appears to increase with increasing temperature. Of course LME49720, 49860, 49710 are the same. Timbre matching LCR, interconnects, power cables, vintage gear. Worse yet, different pieces of equipment can approach grounding/earthing in ways that are incompatible with one another, but technically valid. LM4562 is one of the choices. Markw4 said: We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). 3. It has the most stable input capacitance vs. They are of course all much surpassed by LME49713 CF amp. 1nv). 296-46319-2. All solder pads are destroyed but that doesn't stop me from trying different op amps. newer opa1642 (2009) and sennheiser hd660s(2017) not better or improvement, Just different Apr 21, 2007 · Any standard Bipolar Opamp thould work as a replacement Like even the NE5532 would be better (Much faster and Lower noise) That is if your 4565 is in the Dip8 package. Jun 7, 2016 · The performance of the stock op-amp LM4562 is best characterized as clean, lean, fast, but relatively laid back. abraxalito said: I'd not use a JFET input opamp (OPA1642 is an example) to replace a BJT input opamp (NJM4580 is an example). And objectively LM4562 is better then OPA2132/2134, surely. I have a pre-amplifier built using NE5532 with excellent performance outweighing most high end pre-amplifiers. I find the A07 to be adequate in it's stock form but mine really improved when I swapped the NE5532 OpAmps for the LM4562. Which should I pick? I'm not sure why the LM4562 OP Chip is on this list. Feb 4, 2014 · 2014-03-03 6:49 pm. Minor improvement to SNR, cleaner highs according to some. I also installed a pair of LM4562 at DAC output of a DEQ2496 without problem. I talked yesterday to my buddy Greg B. Aug 22, 2007 · 2008-02-09 11:13 pm. NE5532 was VERY good in LF and midrange performance. The bass was less muddy and overbearing while the midrange and treble clarity improved greatly. Jul 4, 2009 · LM4562, LME49720 and LME49860 are basically the same opamp. This may be the case with low frequency filters. I made a headphone amplifier with the configuration of LM4562-LME49600 more than 10 years ago. • 8 mo. 00005%), a low input bias current of 2 pA, and low quiescent current of 1. #1. Demonstration boards are available for each package. Should I ignore it and take the 4th option? its 20 dollar difference. the THS4032) which are intended for video applications. Most of the listeners would be perfectly happy with it. 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 HelicopterMoon, In my opinion and experience it is not worth the cost to upgrade the opamps in the ae-9 unlike previously sound blaster cards. It depends very much on the circuit if a faster OP can be used. The A07, just like the Fosi v3, comes with NE5532 stock. Amplifiers Mar 17, 2019 · The OPA1641 would be slightly better. The “width” of the sound stage seems fixed and artificially (too) wide. Although in my tests LME49860 it's way much noisier than LME49720 & LM4562have no idea why. NJM4562 has at least as good noise though not the LM's supa THD performance. 8 mA per channel. 3dB lower noise floor. A quick snapshot of the OPA1656 performance specs: 2. 9dBV (24kHz), which would make S/N 87. Jul 4, 2009 · 423. The OPA1642 sounds like a refined OPA2134PA which is not my taste, and the AD8066 sounds like everyone else's experiences: giant sound stage, highly May 24, 2015 · If you can use a bipolar OP, the NE5532 is usually the better choice than a JFET OPA2132 / OPA2134. Both of these figures are to be expected because the LM4562 is a bipolar input op amp while the OPA2134 is a FET input op amp. IMO, use with the stock 32V/5A adapter and replace the Opamps, but don't go linear. Aug 30, 2020 · Member. The LM4562 and LME49720 are IDENTICAL except for the ordering number and marking. Pardon if any of the following has been covered. OPA1612, OPA1642, MUSES8920 and MUSES8820. The OPA1602 and OPA1604 bipolar-input operational amplifiers achieve very low 2. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. $1. reReddit: Top posts of November 21, 2021. It can easily replace LM4562, NE5532 or TLE2072 OPAs, for example. I had a very bad crosstalk (RMAA test) -38 db but I just got it fixed and now I have -66 dB crosstalk. May 15, 2022 · LME49720 vs OPA1612 vs Muses02. 55), but in inverting mode only. Jan 19, 2023 · 2023-03-01 4:03 pm. Then, spend lots of time rolling them giving marks out of 10. The rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. The common-mode rejection is identical at -116 db, and the THD specs are also quite similar Sep 11, 2021 · I have two Aiyima a04 and one a07 . #2. Any way, it is also Opamps LM4562 vs LM4562na Hi there, Im currently fiddling with a pair of Aiyima A07 max amplifiers implemented as mini mono blocks and I'm curious play with different op ampsI've read that the LM4562 is a good option to start with. TI lists the LM4562 as active and has a datasheet from April 2013, this would rather. This Audio Operational Amplifier achieves outstanding AC performance while driving complex loads with values as high as 100pF. What was omitted from the LM4562/LME49720 history is that the part was cancelled, because the 6" wafer line it was sourced from went way, and then resurrected on a new 8" wafer line. These devices operate over a very wide supply voltage range Nov 17, 2021 · TL072 is a JFET opamp so I'd advise upgrading with JFET opamps. Apr 9, 2008 · 2008-04-11 2:54 pm. #7. Jan 7, 2021 · The LM4562 sitting in the A07 and the BB opa2604 sitting in the preamp output stage. プライバシーポリシー 当サイトでは、以下のとおり個人情報保護方針を定め、個人情報保護の仕組みを構築し、個人情報保護の重要性の認識と取組みを徹底することにより、個人情報の保護を推進致します。 May 6, 2022 · In my experience, the lower the noise the more 'air' in the soundstage so I would recommend OPA1642 its noise is way lower than OPA2604. As I managed to understand people mostly operate objective parameters on this forum. 首先关于LME49710、LME49720、LM4562这3款运放一直有个疑问，究竟这三者之间是什么关系，LME49710是单运放，另外2款是双运放，LM4562是LME49710的双运放版本吗？. I will measure the A07 output power and spectrum cleanliness with this power supply.
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