Lm4562 vs lme49720 forum

Lm4562 vs lme49720 forum. If you like the "AD-sound" (AD823/8620/8397). LM4562 is a bad op amp, especially would be for the LT1364 fans. I've used the LM3886 in the standard (datasheet) config, then I built a myref-ish thing using the LME49720 and a DC servo. If you're wondering why I'm using the LME49720 as opposed to the LME49710, it's because I use the other half as the integrator for the DC servo. LM is the best overall, it sounds the most balanced, very natural/smooth/clean, doesnt exaggerate anything but can sound lacking in impact. is concerned. Thus LME49720 = LM4562. Aug 22, 2007 · Joined 2007. A question for opamp gurus. This Audio Operational Amplifier achieves outstanding AC performance while driving Jan 7, 2023 · Obviously the opamps performances give their best in a dedicated circuit, but I will only make a journey in the 8dip socket dual opamps teorically straight replaciable NE5532P, NE5532D, NE5532DD, NE5532N, NE5534P, LF353N, OP275, TL052CP, TL072, JRC2068D, JRC2068DD, JRC2114D, JRC2114DD, JRC4556AD, JRC4558D, JRC5532D, JRC5532DD, LM4562, LME49860, LM833N, LME49720, OPA2132, OPA2134, OPA2227PA Jul 5, 2021 · When I was working (repairs) in a high-end audio shop, I designed and built a battery-powered preamp around the LME49720/LM4562. 虽然说能够代换NE5532的每款双运放和NE5532的插脚都一样，但是内部的芯片电路结构是不同的，不同的电路结构有不同的外环境要求。. Nov 24, 2022 · Replaceable OP amp chips: SR3609SM, OPA2604, OPA2314, LM4562, JRC5532, OP275GSZ, OPA1612AIDR, etc. May 15, 2022 · Member. over 12 years ago. LME49720 is significantly more expensive than LM4562. It sounds swell but I have a set of the higher performance LMA49720NA DIP-8 opamps here on my desk and I'm wondering if they're plug-in compatible. Guddu. Nope, no difference as far as specs etc. May 23, 2018 · Sorry I can't compare the sound of these opamps. TI lists the LM4562 as active and has a datasheet from April 2013, this would rather. OPA2132個人覺得很平淡 但非4562與49990的那種深沉透澈. Jun 16, 2021 · Could you tell us the differences between LM4562 and LME49720? The only difference I could see clearly is the price and the Vn( a difference of 0. I must test muses now. WANTED TO BUY - LM4562 or LME49720 8Pin DIP. Note that the LME49720's -ve rail PSRR degrades when asked to drive lower impedance loads so keep the loading light. Aug 15, 2013 · 除LM4562/LME49720以外 LME49990也相當不錯 (規格更好) 細節表現能力同屬一流 但高頻較收斂一點 整體比較滑順 覺得4562太亮的應該會prefer這顆. The LME49720 is better than the NE5532 in many respects such as the noise figure and distortion. They have the LME49710 and 40, but they have the dual listed only as the LM4562. LME49720 Vs LM4562. BUT the 4562 still has MUCH less (-36db) THD, is faster (~2x), and better CMR (-20db). thanks. Jun 7, 2016 · Audinst HUD-DX1, MUSES 8920 ($15) vs Burson Audio V5i: The HUD-DX1 come equipped with the highly regarded MUSES 8920E op amps in its stock form. The LME49722 combines extremely low voltage noise density (1. Charles. It walked all over every sub-$3,000 preamp in the store. The LME49710 is basically the same amplifier as the LM4562, so the LME49710 model is appropriate to use for the LME49720, which has no SPICE model, or the LM4562, which has a flawed model. The AD8620BR, is a very nice opamp and you should be very pleased with it. Very impressive specs from LM6172 ( see data sheet in link provided above ) , ridiculously high slew rate , and very low 2nd and 3rd harmonics . Oct 1, 2009 · Built circuit Hi All, Finally I built this circuit too. This old topic is closed. strangely its probably the most boring sounding one when paired with 400i but the best sounding with hd600. Find parameters, ordering and quality information. Zahvaljujuci kolegi bassivus-u dobio sam na probu pomenute opa ad8066 i LM4562. The LME49720 is a TI part but maybe you or others know it better by the original PN of LM4562. 比如说有的运放低压性能好，有的运放带负载能力好，有的运放频带宽等等，但是在不适合 Jun 28, 2022 · LM4562 ili LME49720 by vksamael » Tue Jun 28, 2022 10:01 am Pozdrav ako neko ima trebao bi 2 komada ili jednih ili drugih u sop8 ili soic kućištu, ili ako neko naručuje iz vana pa podjelimo troškove dostave ili nekakva zamjena. Same thing with the 49860 and 49870. Jan 28, 2010 · It should be 4nV/sqr or less to be inaudible, or say to be lower than the vynil´s own noise figure (which can be no better than -70dB afaI remember). Differences in distortion are mostly due to odd left/right channel differences of PCM1794A. Jan 7, 2021 · Below is the measurement of THD vs. 2020-11-05 1:05 pm. The LME49720 device is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity Feb 4, 2010 · 2010-02-04 10:25 pm. The noise characteristic is, what we would have called in the old days, 'popcorn noise'. T. O-Noorus D1 - TPA3255 PFFB Stereo Amplifier - Front Display, Tone Control (with bypass) and Remote. Please email me at arupg@yahoo. inside i. Other Parts Discussed in Thread: LME49720, , LME49860, LM4562, RC4580, BUF634A, LM833, NE5532, BUF634, TL972, TL974. The LME49720 has a wide supply range of ±2. Nov 21, 2016 · The LM4562/LME49720/LME49860 family is opinion far away better than the NEC C4570C. Though I use it only occasionally mostly for tests, and it has not operated more than a couple of hours summed, the right channel started to emit high frequency hiss noise time after time, without any special reason, even if nothing is connected to the input. F curve increases at HF. Does not have to be new. 購入数量：. Znam da ima dosta slicnih tema na forumu, ali sam mislio da ne bi bilo lose da ljudi mogu procitati i napisati malo vishe utisaka na jednom mestu. This increase is very gentle, but it's in the upper mid frequencies, and my guess is that it's caused by the 3. (I have not compared. Nov 21, 2021 · Yesterday at 9:10 PM. The TPA3255 does actuallly have an internal feedback network that is reducing the effects of ripple aliasing. 6 mA idle current vs. Oct 17, 2014 · LM4562 is far more neutral and a good choice for RIAA circuit. If it's oscillating or noisy this will be problem with ground loops. This Fosi V3 is the best of the bunch, a simple, genuinely powerful/useful, truthful, nice-looking and nice-sounding amp that can be tucked pretty much anywhere. Did a Baxandall tilt-filter for a high-end speaker project with them as well. 60 at Mouser. You could also try LM4562 (same chip as LME49720 as recommended below). 2013-06-30 1:38 pm. It could be that some RFI burst demodulation actually were mistaken as popcorn noise, that is, in hindsight. In PDIP form, 100 qty is 66¢; so about 2/3rds the price. Calvin. The consensus is that it's the same part LME49720: 1Mb / 40P [Old version datasheet] [Old version datasheet] LM4562 Dual High-Performance, High-Fidelity Audio Operational Amplifier LME49725: 1Mb / 25P Jan 27, 2015 · That datasheet has a lot more characterisation than that for the LME49710. The design features the TI LM4562 dual audio op amp and the LSK489 dual JFET. The LME49720 is available in 8–lead narrow body SOIC, 8–lead PDIP, and 8–lead TO-99. Prodigy 50 points. Measured by oscilloscope only. PSRR is crucial and the AD8610 loses out by around 10dB on its most sensitive rail (-ve). The completely docile op amps are the OPA2604, the OPA627, the OPA2107, the LM4562/LME49720 and the OPA2134. The LME49720 output stage is optimized for supply voltages under +-17 volts. 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. Similar to the size of a typical DIP8 opamp, the V5i is the easiest plug-in upgrade for any audio project. 100”headers, to apply the power supply voltage and the audio input signals. Is very quiet. I like the 627s but prefer the OPA637 for my own system. That said, there are reasons why TO-99 cans are still being used. com. I've replaced NEC C4570C and NE5532 op-amps in 7 different cdp's with LME49720 series now and in every case it was a serious improvement. The power supply used was Meanwell SMPS RS-100-24 set to 27Vdc output voltage. #21. indicate that the LM4562 has not been relabeled to LME49720 (which is listed too. Replies. This makes the NE5532 especially good for higher source impedance circuits. Nov 9, 2012 · I'm liking the sound more than the standard LM4562 and JRC 2114D’s , even though these are pretty impressive themselves ( if you look at the spec sheets ) . LM4562 is the best performer in differential amplifier. Jan 24, 2010 · FWIW, I'd suggest OPA827 (x2) or OPA1641/42 for TL072 and OPA211/2211A for NE5532. (attached the final version). Either they did this for marketing reasons or the are different chips. The difference you hear with them is actually much more accurate sound. YES PLEASE !!!! but you certainly know, that a (plain, siplified) circuit tells only 1% of the story. USB not connected, PC is OFF. 99% of performance of a part can be the process. It must have a good bass and treble extension and must sound very neutral and flat. 2013-09-20 1:36 pm. Nov 24, 2022 · Remove the case and increase the heat sink. Jan 23, 2009 · If you're up to soldering surface mount chips to adaptors (if you're unsure, that's a no, but maybe you know some-one who can) also consider AD8066. jauu. . But the LM4562 and LME49720 are better general purpose choices for just a little more. The OPAx132 is the slightly better version for DC critical applications. A. Feb 2, 2024 · What's the difference between LME49720 and LM4562? Their specs seem to be identical; the 4562 is a bit less expensive. Nov 9, 2010 · I am thinking for using the LM4562 for my custom AMP, does the metal can version really sound that better? If not then the LM4562NA is cheaper than LM4562HA (₹232 vs ₹663). TI’s LME49860 is a 2-channel, 44-V, high-fidelity, high-performance audio op amp. LME49720 better yes, not for a little more, in DIP-8 is $2. Want LM4562NA or LME49720NA - 8-Pin DIP immediate. do you think it compatible or do you have a better choice for remplace the 4580 jrc. 型番： NJM2746E. 00003%) to easily satisfy the most demanding audio applications. I thought I would share a recent application note with the e2e community for an RIAA equalized phono preamp published by Bob Cordell and Linear Systems. 3 watt. The LME49990´s datasheet is another of National´s row of bad examples of Datasheets. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. LM4562 and NE5532 show almost identical performance in I/V stage, while OPA2134 is 2 dB weaker. Ideja ove teme bi bila da predlozite i iskomentarisete neke od op-ampova koje ste culi. Jan 7, 2021 · Talking about AIYIMA A07, it will end up in a dustbin soon. Bauhausler said: Howdy. Joined 2011. When used as a single dual stereo op amp I find the soundstage a bit flat and a thick sound. Hello TI, I have a client that wants to us to design a consumer headphone amplifier. Duals make PCB layout easier for obvious reasons, but singles can come in handy for Oct 8, 2001 · NE5532 has a higher slew rate (9v/uSec vs, 6). May 26, 2011 · I like the KISS principle and picked the recommended circuit from the National Semiconductor datasheet using two LME49720 op amps. They don't stock both. It seems like LM4562 in SOIC-8 package is rather unobtainable at the moment so I'm thinking about suitable alternatives. The silicon die inside any packaged version of the LME49720 will be the same regardless of package type. #1. Last edited: 2009-12-04 1:18 pm. the 10 mA idle current of the 49990. To ensure that the most challenging loads are driven without compromise, the LME49722 has a high slew rate of ±22V/μs and an output current capability of ±28mA. I am testing the A07 with 2 different power supplies. gif I purchased 2 sets of 2 LM4562NA for my X-Meridian from this seller on Ebay. Jul 15, 2022 · If things go wrong you might even increase THD with a higher feedback factor. Aug 22, 2007 · Site Site Announcements Forum Problems & Feedback Terms and Rules. #1 Choose the LM4562 (LM4562 vs NE5532): High-End Audio Quality: If your application demands the highest audio quality, low distortion, and minimal noise interference, the LM4562 is a better choice. Why is TI ending production of the LME49710 and LME49720? I own a small boutique custom recording equipment company, and the majority of the income my business makes comes from two products I've designed which use these two opamps, not to Nov 25, 2015 · Ive compared the NE5532, NJM4556 and LM4562 so far. 2). I have only replaced op-amps in the analog sections of the players. Agree with previous post, fast, detailed, revealing and neutral. This may be the case with low frequency filters. 8610/20 are used in many high end amps. Haven't tried the new OPA164x series, but word is that they sound good. 1パック2個入. Jan 8, 2017 · PCM1794A output stage opamp measurements: LM4562, NE5532, and OPA2134. Jan 3, 2020 · LM4562, LME49710, LME49720 Start-up Behavior - Pro Audio Design Forum I've never seen the EMI issue with a common NJM5532. are clearly better, quieter. 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. ￥120 (税込) 税抜 ￥110. After I consulted with the team about the status of LME49710 and LM4562 I got the following information: LM4562 - SOIC and PDIP packages are in Active status while TO-99 is being EOL LME49710 - Unfortunately this one is EOL for the three packages (SOIC, PDIP and TO-99). I second the lm4562. Note that the OPA132PA or P are marked "obsolete". LM4562 is another level altogether. Feb 18, 2014 · If you spend a few cents more, the TI LM4562 or LME49720 will outperform any NJM chip re. Thread starter Ryssen; Start date 2007-08-22 9:19 pm; Status Aug 28, 2023 · Choosing between the LM4562 and NE5532 depends on your specific application requirements and priorities. Purchased at Amazon. Nov 5, 2020 · Novice asks for help: Are LME49720 and LM4562 the same? Some people say that their internal structure is the same, and their manuals on TI’s website are also the same, but their prices are quite different. Forum Style Forum: Audio Electronics and Hardware; Tags. They are identical op amps. Apr 1, 2012 · Apr 1, 2012. 3 4 5. Aug 19, 2023 · I've owned several other Class D chip amps in the past, including the Aiyima A07, SMSL AO200 and at least a couple different TPA3116 Topping and SMSL models. 5V operation, but it's a very good chip. Oct 1, 2009 · Yes, exactly. Sounds soft compared to this from datasheet LME49720. 00 USD, the V5i is a fun upgrade with serious performance capabilities. That aside, it's been found that all the BB singles sound better than their dual counterparts: OPA228 better than 2228, OPA211 better than 2211, OPA134 better than 2134, and so on. To ensure that the most chal-lenging loads are driven without compromise, the LME49722 has a high slew rate of ±22V/μs and an output current capa-bility of ±28mA. Try a 50V12V switching power supply, and the output can reach 300W under the condition of 10% distortion. The AD8620,627,637 are in a different league then the 4562. Distortion: 0. TI’s LME49724 is a 50-MHz, high-fidelity, high-performance, fully-differential audio op amp. Jan 3, 2020 · LM4562 double-sided test PCB with ground plane. Joined 2003. Measure the temperature. Two sockets, two chips, two 9V batteries, a switch, two 100uf power supply caps and a handful of . in some line level circuitry. With Phono Preamps…LME49710 /LME49720 TO-99, metal can. 5V to ±17V. The amplified audio signal is available on both a stereo headphone jack and auxiliary output connections. It is a good drop in replacement for the fake NE5532 when you buy a DAC on ebay. One of them is a linear Jul 5, 2006 · It has proven (most probably) true. Also NJM2068 and NE 5532 are cheaper options and Apr 7, 2007 · It's congested, muddy, mono-sounding and undynamic. Other Parts Discussed in Thread: LM4562. Mar 26, 2007 · Originally Posted by lixuelai /img/forum/go_quote. Jan 11, 2015 · The LM4562 is not EOL but the model has problems. Hi, I am working on a new product development, and am experiencing excess noise problems with certain samples of LME49720. Jun 4, 2013 · The LME49720 does have a higher quiescent current draw of 10ma, as stated, due to the higher biasing. 58 each in . #2. I forgot that I already posted this earlier in the thread. distortion. if you can employ it properly. The LME49720 is unity gain stable. LME49720 = LM4562 คือเค้าบอกว่า LME49720 คือ LM4562 ที่เปลี่ยนชื่อใหม่เฉยๆ??? Digikey apparently knows that the LM4562 and the LME49720 are the same part. Yes, "dual" means two op-amps in one IC package. 8620 is smoother and leaner, and except for the coarse treble it's very natural and musical. Feb 29, 2008 · The LM4562 is a nice opamp and won alot of awards when it was released for the performance to price it is good. Sound is more "color", and "massive". if the gain is going to be x1 then you would need a unity gain stable op amp. But I could see some potential issues if the carrier propagates through the power supply. I am analyzing the amplifier with particular concern I have read some forums on good replacements, but all of those forums are for guitar amps. Apr 11, 2021 · Hello mate, this forum is a wrong place to ask since chip rolling is rather discouraged - if you don't have the proper tools to evaluate what your mod does to the audio (something that can measure THD/IMD/noise), then it's better to not touch the audio circuit - replacing a chip with a more expensive or even better measuring part of the same nature will not guarrantee an improvement in the If you have questions about quality, packaging or ordering TI products, see TI support. Aug 24, 2012 · Member. The most important thing to look for when choosing an op amp for audio is making sure it is stable at the gains you intend to use it for e. 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. TI’s LME49723 is a 2-channel, 17-MHz, high-fidelity, high-performance audio op amp. Actually, for spectacular effects you need to mix two different op amps and include proper supply bypassing capacitors' choice. The level of spikes is still high enough to be easily detected by spectral analysis. Of the op amps in my collection the massive misbehavers are the OPA1656, the LME49990 and the OPA1612. Oct 31, 2007 · Regarding the LM4562 - the guy who told me about the OPA2604 + AD8022 results, also tried this combination. Useless numbers and figures in multiples and very few peaces of flesh. The OPA2134 is more a better replacement for the TL072 when you need a FET type. LME49720 sound is boringand too light. We are researching the IC LME49720 at the TI website and is reviewing this, LME49600 Headphone Amplifier Evaluation Board LME49600TSBD (ACTIVE). atmasphere. The LME49860 is optimized for +-14. One guess that one choice that comes to mind is OPA1612. 5 to 22 volts. I find the AD823 very grainy and harsh, even when used in front of a buffer. The only difference between the 49710/20 and 49870/60 is the later two have a higher voltage rating (not needed in most cases). Nov 9, 2008 · Posted November 9, 2008. Starting at the price of $39. Don't need to use ceramics, it can do much more harm to the sound than any benefits. 569パック. I avoid the LME49720 because it has too many warts. That will certainly make it feel warm, but it depends on what "quite hot" means. Other Parts Discussed in Thread: LM4562 , LME49720 Hello. 而是各頻段表現都滿均勻的 細節表現也不差 但就是不會太有個性 也 The LME49722 combines extremely low voltage noise density (1. I just want a neutral, natural/flat and extended sound. According to the datasheets for both, they have the same Jan 3, 2020 · In terms of e. Jan 7, 2021 · AIYIMA A07 TPA3255 Amplifier Measurements LM4562 option I received my A07 yesterday, on January 6, 2021, shipped from Italy. See the first post on this thread. 7nV/√ Hz) with vanishingly low THD+N (0. For RIAA applications, I would recommend LME49720 which, according to datasheets is nothing more than just a rebranded LM4562, but in listening is quieter and more analogue sounding, while retaining the 4562's Apr 16, 2011 · The genuine NE5532 in DIP-8 is $1. Pre stage (MC LO) in front of this schematic gives me 25-40dB (variable - dip switch). I heard there are some protection circuit or biasing difference between the two. Marketplace. Patrice. Jan 3, 2020 · This, plus the large percentage of LM4562/LME49720 that have extreme levels of random popcorn noise made me avoid those part as much as possible (after an expensive learning curve). View attachment 44625 LM4562 double-sided PCB, output amplified 30x and filtered by 20kHz 2RC LPF. 2007-07-09 8:57 pm. LM4562/LME49720 is a bit thinner, slightly more veiled, and a bit sterile in comparison with the new TI chips, IMO. the best sounding is OPA1612 ,not for driving headphones -low output current drive ,3ma current consumption. Now i tested opa1612 with lme49720 and 1612 is better in my opinion. Please try again. Jan 28, 2018 · I had the chance to gather up a selection of opamps from my parts bin, including BB OPA2604, OPA637, AD823, LME49860, JR4556, Muses8820 and 8920, and compare them against each other along with a Burson V6 Classic (thanks to them for sending me an evaluation). Laying an additional loop around a switching amp is always more demanding than around a linear amp. 01 each in single quantity from Mouser. For several reasons: Firstly I don't think that would be difference in sound quality. The LM4562 is similar to the LME49720 except it's in a metal case and has better heat dissipation and drives 600 ohms effortlessly. Oct 7, 2015 · The OPA1611 has almost as low distortion, but the distortion vs. Jan 29, 2015 · As well as my stAMPs, I also use an LM3886 amp for normal listening. If you want to reopen this topic, contact a moderator using the "Report Post" button. I used Wima Caps for the RIAA filter and 1% tolerant resistors (measured and selected). +20 dBU means lot of gain, so these opamps should perform admirable when used in voltage amplification gain. 84vRms Speaker impedance: 4-8Ω Output power: 300W*2/4 Ohm Input mode: Bluetooth, RCA May 6, 2019 · Incredible! This OP amp is now available for $1. Sep 14, 2021 · The 1656 just went berserk! “Somethings wrong and I have to use all my horsepower to fix it right now!”. I happen to have a couple of Burson Audio V5i op amps around (thanks to Burson Audio for sending me the samples) that is compatible as a direct replacement for the 8920 so let’s see what happen if we Feb 7, 2022 · I'm working on a compact SMD based PCB/build for Doug Self's EQ from LinearAudio#5. The existing A07 and A07PRO of TPA3255 can use 48V10A power board, 4ohm 240W*2 distortion 10%. Other Parts Discussed in Thread: LME49720 , OPA1612 , OPA2209 Hi, i have a dbx driverack pa and i want to change my op amp for better op amp. When designing the Burson V5i, our goal was to create a product that was to manage. The LME49600/LME49720 Stereo Headphone Amplifier demonstration board has all of the necessary connections, using RCA jacks, 1/8”stereo headphone jack and 0. It should be of simmilar if not better overall quality except for the fact that it May 21, 2018 · 2回路入り出力フルスイング単電源オペアンプ NJM2746E. Add a heat exhaust fan to reduce the heat generated by the chip. Regards. Idk if that's true or not. Other Parts Discussed in Thread: LM4562 , LME49720 请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。 emi interference lm4562 lme49720 modulation rfi Replies: 16; Forum: Audio Electronics and Hardware; Tags. May 23, 2018 · Interesting that solid-state "opamps" (SGA-HVA-1 & SK99 & SK25) are measuring extremely well and the well-known LME49860 (LME49720 and NE4562) is just a tad lower in performance. It excels in premium audio equipment like Oct 8, 2001 · The ne5532 is a great op amp. The most important reason is probably that device stress is much, much less with the TO-99 cans. g. lm4562 Texas Instruments | Mouser Apr 23, 2016 · Windforce85 said: Just pair of 10 or 22uF aluminium-electrolytic caps no further than 10mm from both supply pins to ground will be the best decoupling for the LM4562. You run the risk of instability using a faster op amp, but a modern surface mount PCB is likely to work well, and the LM4562 has a generous phase margin, and it'll tolerate load capacitance pretty well. Part Number: LME49720 Other Parts Discussed in Thread: NE5532, OPA1602, OPA1612, OPA1622, OPA1662, OPA1652, NE5534, LM4562. I have a phono preamp board with three socketed DIP-8 OPA2134 in it. Oct 29, 2009 · The same is true about the LME49722, and others (LM6172 above all). Easy & Effective. I am designing a product that will use the LM4562. The LM4562 is decent but the LME49723 sounds better. and has a datasheet of its own). 9nV/√Hz) rate with vanishingly low THD+N (0. I tried a few years ago Bugle preamp. It's only just barely rated for +/- 2. i tryed lme49722 opa2134 and opa1612 , --. I changed the gain to 45dB. 1% and 1% resistors with Panasonic poly caps on a ratshack board and this little preamp sounds VERY good! Jun 27, 2019 · BTW, one thing I don't understand is that lm4562 is almost half price of lme49720. Jul 14, 2012 · The 49720 is just the dual version of the 49710. 2. carlmart: use the LME49710 model. power, with @90kHz measuring bandwidth and at frequencies 1kHz, 5kHz, 10kHz and 15kHz. Member. Timbre appears to be natural and realistic . Yoy can also add Neumann time constant. The OPA132UA is the best FET opamp that I know of. The LME49720 combines extremely low voltage noise density (2. Demonstration boards are available for each package. This Audio Operational Amplifier achieves outstanding AC performance while driving complex loads with values as high as 100pF. Over this supply range the LME49720’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. They are of course all much surpassed by LME49713 CF amp. de and as stated on their website, it arrived without a power supply. 2 x LM4562 LM4562NA Ultra-low distortion Audio Op Amp - eBay (item 330339367933 end time Jun-24-09 18:13:03 PDT) The OPAMPs arrived and I tested them only to find a lot of static. 000. Aug 22, 2007 · IMHO LME49710, LME49720 and LM4562 performs identical, as long as identical employed. 販売コード： 109495. With the frequencies involved they will be more annoying than the usual 50 Hz, but of course the amplitudes are lower. I still want to try (in the DAC I mentioned) the THS4051 and the OPA1611. 購入可能数：. The LT1028CS8 is what I use now and it's excellent. 2068 voltage noise IS lower than the 5532, but I cannot find a spec on current noise for the 2068---which the 5532 is particularly LOW in, even lower than the mighty LM4562. Chatter is that TI wanted to include it into the LME family with new PN but big customer refused to change their inventory PN designation. g the LME49720 I would not worry. Dec 28, 2017 · NE5532，OPA2604，LM4562，OPA604运放听感. 00002%) to easily satisfy the most demanding audio applications. inside i have four 4580 jrc and i want change by Lme49720. If you have questions about quality, packaging or ordering TI products, see TI support. Are they really the same? thank you all;） richie00boy. Jul 9, 2007 · Joined 2005. With 30 volts across the rail, the IC will be dissipating 0. May 24, 2015 · If you can use a bipolar OP, the NE5532 is usually the better choice than a JFET OPA2132 / OPA2134. Two cases were evalutated – in a Feb 28, 2021 · OPA2134 has good tone and detail when in single mono mode ie with two op amps one per channel. 002% Signal-to-noise ratio: 90dB Frequency response: bass ±12dB; treble±10dB Input sensitivity: 0. Other Parts Discussed in Thread: LME49720, OPA1611, OPA1602, LME49860, LM4562, LM833. 3. GBW of some worst case OPA circuit (at given biasing) can be easily altered by a factor of 100 by choice of an expensive (bipolar) process. Mar 25, 2024. The price has been reduced by 50%. Even when it would it is really small and you can't say which is better. ---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 A. lf vh et qj jq xy sk ba xh cd