Lme49720 lm4562. But now, in the D10s, situation is quite different.

Lme49720 lm4562 Additionally, insights 音に対して投資を惜しまない層に向けた Highend ラインの他に、将来の日本音楽界のために若いうちから耳を育ててもらうべく、低価格な Standard ラインの2ラインで展開していく。 ただし、どちらも抜群のコスパを心掛け、業界へ貢献して行く所存である。 Jul 26, 2020 · Could you recommend what is the preferred one from your point of view? Yes, No changes needed. The Burson V7 Classic is a drop-in replacement for many types of op amp: Dual AD823, AD823AN, AD8066, AD8620, AD712, AD827, C4570, JRC4556AD, JRC4580, JRC5532, JRC5532D, JRC5532, LF353, LM4562, LME49860, LM833N, LME49720, MUSES8920, NE5532, NEC4520, NEC4570, NJM2068D, NJM2114, NJM2214D, NJM4558, May 25, 2011 · LM4562 and LME49720 are different names for the same op amp. Opa1612 and LM4562/LME49720 are both good. Note that my original statement was not "I prefer NE5532 over TL072 for everything" but instead "If you are using it in an audio preamp, wouldn't an NE5532, or LM4562, or LME49720 be a better choice?". Try them and see for yourself. Looking for a cost effective solution. I ended up not linking that at all. Unfortunately the only overlap with @pma 's testing was the Lm4562. 7pA/√Hz for the NE5532. The LME49720 is a high-fidelity, high-performance audio operational amplifier for superior sound quality applications. They will be my choice for a 2-stage passive-active MM phono stage. LME49720 is significantly more expensive than LM4562. They have, however, higher current noise and cost ten times as much. 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. The LM4562 and LME49720 are IDENTICAL except for the ordering number and marking. Jan 24, 2010 · FWIW, I'd suggest OPA827 (x2) or OPA1641/42 for TL072 and OPA211/2211A for NE5532. A distributor that calls on me at work has a theory about why it is dual numbered. I also suggest optimizing the circuit for low noise so you can tease the THD out. Jan 9, 2025 · LM4562 / LME49720 EoL? (again) JavaScript is disabled. Jul 4, 2009 · I've tested LME49860 in voltage amplification stage of O2 and Matrix HPA-3B and the noise was quite high, higher than LME49720 (I know, specs are identical, just wider voltage range), higher than MUSES8820 and 8920 etc. This performance is reached because of the dedicated GND pin to which the internal compensation is referenced to, thus a bit unfair. I may grab some NE5532 just for comparison. Download. Sep 9, 2022 · Hi, I wanted to build a discrete version of the LM4562 op amp following zubr's drawing of its internal schematic (link). Jan 30, 2004 · The LME49720 output stage is optimized for supply voltages under +-17 volts. It has very good specs, and has a strong pedigree f great measurements, sound, and performance. LME49720NA vs. With LM4562/LME49720, I'd just leave resistor values as-is, they should work fine. Haven't tried surface mount soldering in 15 years- managed to not kill any chips in the process. Jul 3, 2019 · But there are caveats. Used Beyschlag resistors (and Dale in the feedback loop), Wima FKP 1% film-foil and silver-mica RIAA caps, C0G SMD and Elna Silmic II bypass caps. The LM4562 is similar to the LME49720 except it's in a metal case and has better heat dissipation and drives 600 ohms effortlessly. Feb 7, 2014 · Posted February 22, 2014 http://www. are clearly better, quieter. Then again changed to LM4562. Opamps without cancellation will typically show - for PNP inputs and + for NPN inputs. Why? These are GREAT parts! We just went through this cycle where the DIP versions were going to be EOL'd, but now the TO-99 versions instead? The LME49710 continues in the TO-99 can, apparently Apr 21, 2008 · （たしかに嫌な感じはしません） LM4562 (LME49720) LME49720とLM4562 はまったく同一の製品です。 9Vではあんまりな感じですが、±9Vでは結構きちんと動作します。 秋月で250円のため（LME49720は270円）、コストパフォーマンスは良く、それ以前から人気のオペアンプ TI’s LME49720 is a 2-channel, 55-MHz, high-fidelity, high-performance, RRO audio op amp. I actually wondered that, since they are the same price and info at digikey. LM4562, LME49710, LME49720 Start-up Behavior - Pro Audio Design Forum Aug 24, 2018 · To get a true measurement of the THD, I suggest looking at the test circuit in the LM4562 (= LME49720) data sheet. Does the OPA2228 sound much better than OPA1612 in the same circuit? And how does it compare to LM4562? Anyone built the phono pre from LM4562/LME49720 datasheet? JavaScript is disabled. 12th February 2008, 01:58 AM #12 BrassTeacher diyAudio Member Join Date: Mar 2006 Location: Kennesaw, GA I actually e-mail the tech people at National. I suggest the following reference - 994Enh Discret welcome to taobao purchase high-performance operinternational amplifier lme49720 lm4562 opa2604 opa2134 opa627 opa637, taobao digital hot selling goods, official logistics can send to the world, support foreign currency payment and other payment methods, platform customer service 24hours online, to support foreign currency payment and other payment methods, platform customer service 24hours Feb 11, 2021 · You mean this opinion? LM4562 / LME49720 low frequency noise - Audio forum - Audio - TI E2E support forums Fake news I tell you. 403dBc=0. Based on The LME49720 / LM4562 has extremely low distortion, and is also pretty easy to stabilize, but it has a good bit more input voltage noise. Why is that? Kindly enlighten us to give an idea for the deciding factor. This article mainly introduce its circuit, price, alternatives and other detailed informations about Texas instruments LME49720. Re: LM4562, LME49710, LME49720 Start-up Behavior by JR. LME49720 (LM4562), LME49722, LME49725, LME49713 But where are the significant technical and audible differences? The May 19, 2017 · OPA1656 24v/uSec slew rate; LME49720 (same as LM4562) 20v/uSec slew rate: 1656 is a LITTLE bit faster. / au. Find parameters, ordering and quality information 国半LM4562与LME49720运放芯片，指标相似或重命名关系，LM4562NA与LME49720NA售价变化，TI收购后LM4562NA价格降低或因品控问题。 The LM4562 and NE5532 are two popular operational amplifiers used in audio electronics, each with unique benefits. Below please find comparisons of THD vs. I initially suspected a common mode limitation or polarity reversal but quick tests confirmed this was not the オペアンプ 10種 音質 比較 価格順 MUSES03 OPA627 OPA2604 OPA2134 OPA1622 MUSES8920 MUSES8820 LM4562 NE5532 TL082 ukaka5656 1. It's only just barely rated for +/- 2. V7 Classic Dual Opamp. LM4562/LME49720 is a bit thinner, slightly more veiled, and a bit sterile in comparison with the new TI chips, IMO. Never heard a Weiss. LME49720 and LM4562 are the same part. The LM4562 offers clear, detailed sound with low distortion, ideal for audio systems. May 25, 2011 · We needed a nice, modern phono pre-amp for the shop- One that was not expensive but would really give high end performance. Tom Tom Christiansen Audio - www. However, I imagine that you could build a somewhat low gain, fast, but low noise front end amplifier and put the 4562 in the feedback loop and get something more suited to a MC cartridge. The 49720 is more clinical IMO. LME49720 素直で低域の抜けが良い印象。 高域はうっすらとフィルターが掛かっている感じ。 あまり特徴を感じないので、逆に言うと素性が良いのかも知れない。 太くても嫌味を感じさせない音を作りたい場合には良いチョイスか。 卓に良さそう。 LME49860 Oct 30, 2024 · LME49720 Audio Operational Amplifier: Alternatives, Circuit, and Specifications The LME49720, celebrated in the realm of high-fidelity audio for its accuracy and impressive performance, stands out as a premier choice for audiophiles. Sometimes, the best one (the most expensive) is called "original" and the next best thing is "KW1", "KW2" and so on. The sparkos opamps are very good as well but are IMO sonically warmer than the Sonic Imagery. The LM4562 was introduced first. LM is the best overall, it sounds the most balanced, very natural/smooth/clean, doesnt exaggerate anything but can sound lacking in impact. The 49990 won out in this circuit. They are of course all much surpassed by LME49713 CF amp. Data sheet specs are identical. LM4562 / LME49720 low frequency noise Victor Mickevich Prodigy 225 points Other Parts Discussed in Thread: LM4562, LME49720, MC33078, LME49860, NE5532, OPA1642, OPA2134, OPA1612, OPA2604 I was ordered about 400pcs of these chips in SO8 package from Farnell and from Digikey within some years period. May 5, 2012 · Eh? All packages of both LM4562 and LME49720 are stocked at DK. g. Jun 16, 2021 · Part Number: LM4562 Other Parts Discussed in Thread: LME49720 Hi Guys, 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. This Audio Operational Amplifier achieves outstanding AC performance while driving complex loads with values as high as 100pF with gain value greater than 2. The LME49720 is better than the NE5532 in many respects such as the noise figure and distortion. 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. . Dec 10, 2018 · I was thinking for duals, since they are used as the I/V stage chips here, I would try the OPA2132P that I have on hand, and maybe some LME49720/LM4562. Re: LME49720/LM4562 Popcorn Noise Update by mediatechnology » Fri Oct 04, 2024 6:53 pm I bought a couple of LEM49720 from Mouser a few months ago to test a modern lot and haven't gotten to it yet. Description: Dual High Performance, High Fidelity Audio Operational Amplifier. noise, bandwidth, THD and output current. OPA1611 THD=-116. The 5532 has a slew rate of 10v/us, or about half that of the 4562- and it's very hard to see why this is important for any audio applications as the full power bandwidth for the 5532 with 15v supplies is about 110kHz, and that So we are review the IC LM4562, LME49720 and LME49860, however we need to find an alternative for the BUFFER - IC LME49600? QUESTION: What are the comparable alternatives can you all recommend for the IC LME49600? We are reviewing the RC4580 and the NJM4556! We need a TI solution, thanks. You need to verify that they are genuine from US/European manufacturer, not fake part from Chinese seller on e-bay. In addition to that, which instrument amplifier would you suggest? Jan 9, 2025 · Most opamps have unbalanced PSRR performance so it’s not unique to the 4562. source: Foobar2000 [output DSD WASAPI (event) Amanero USB] Headphone Amp: Pre-amp: Dual AD797*2 + Muses02, Headphone out: Dual opa627 + 12AU7 tube + Muses02 vs. Aug 22, 2007 · Again the urban legend (fake news?) surfaces. Directly in-terchangeable with LME49720, LM4562 and Feb 23, 2019 · 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). 7nV/√Hz) with low THD+N (0. 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. I like the KISS principle and picked the recommended circuit from the National Semiconductor datasheet using two LME49720 op amps. 5V to ±18V. Inside my Matrix HPA-3B with LME49860 the background noise was the highest, while with LME49720 or LM4562 was much lower. Not all samples display it, but some do, so far Jun 19, 2021 · The latest op-amp that I am still using until now is LM4562. Aug 22, 2007 · IMHO LME49710, LME49720 and LM4562 performs identical, as long as identical employed. You could also try LM4562 (same chip as LME49720 as recommended below). If you can't find an LM4562, search for an LME49720 and vice versa. My understanding is the rest of the family was due to get new names, so they created LME49720 to fit with the new convention, but did not drop the LM4562 named part since it had customers already. The very best is LME49720/LM4562 and the NE5532 is measurably worse in the D10s. Interestingly enough, the LM4562 is less expensive, in small quantities at least. dweekie diyAudio Member Join Date: Sep 2006 Oct 7, 2015 · So it would be spectacularly ugly, but why not straighten the leads on an LM4562, stuff it on the pin 1-4 side, and run some wires to make it work and kill the extra amp? Nov 25, 2015 · Ive compared the NE5532, NJM4556 and LM4562 so far. In this article, we will delve into the distinctions between the LM4562 and NE5532 op-amps. - HPA-1 headphone amp (ASR Review). 000130% Although the price was also cheap, It is a pity that NS was absorbed by TI and was abolished after losing the brand power competition Jun 8, 2019 · The LM4562 has 1. ~42mA drive should be enough, I will have to look at its output impedance characteristics. The noise characteristic is, what we would have called in the old days, 'popcorn noise'. This Audio Operational Amplifier achieves outstand-ing AC performance while driving complex loads with values as high as 100pF with gain value greater than 2. I forgot that I already posted this earlier in the thread. 2). This Feb 27, 2019 · For whatever much or little it may be worth, atm audio tested these several op amps in context of designing their I/O buffer for the Hypex and Purifi amp modules: LM4562 LME49720 MUSES01 Burson Audio V5 Sparkos Labs SS3602 Sonic Imagery Labs SIL994 The produced the harmonic spectra for each of these that may be found HERE. EDIT: This may be heresy As long as you're buying op amps, I would strongly suggest that you try out the NE5532 as well. Oct 9, 2019 · I wouldn't try keeping my finger on this guy though, it'll be at around 400 mW in idle. 000190% LME49710 has been discontinued, but dual LM4562, LME49720, LME49860 are current products. Feb 24, 2024 · For the test I have chosen well known dual op-amps LM4562, NE5532, LM1458 (bipolar input) and OPA2134, TL 072 (JFET input). I got free shipping with Element14 till 29th of this month Re: LM4562, LME49710, LME49720 Start-up Behavior JR. 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). Will I exceed these? Don't know yet. 6pA/√Hz vs only 0. LM4562, LME49710, LME49720 Start-up Behavior by mediatechnology » Fri May 09, 2014 6:31 pm I became curious about a few reports on the web regarding single-supply start-up of the LM4562 and the identical LME49720 and single LME49710. Choosing between them depends on whether you prioritize top-tier sound quality or a balance of May 24, 2015 · The newer LM4562/LME49720 series improves on many parameters at once cf. So devices with low voltage noise, higher current noise, and much Oct 1, 2009 · I've built the LM4562 datasheet RIAA preamp, too. Feb 23, 2019 · As a conclusion, absolutely worst behavior was that of the LM4562/LME49710/LME49720 family, bought several times in the past 12 years, directly from the manufacturers or authorized distributors. You can use a Nov 9, 2012 · Tried few OPAMPs myself in I/V, LPF, VAS and BUFFER stages with my Essence One DAC/headamp, like: NE5532, LM4562, NJR2114, OPA1602, LME49720, MUSES8820, MUSES8920, OPA2604, OPA1642, OPA2132PA, AD8672, AD8599, MUSES01, MUSES02. My suspicion is that they needed more 'space' in the part number Part Number: LM4562 Other Parts Discussed in Thread: LME49720, OPA1611, BUF634 So, I was on Mouser looking for parts, and I found that the LM4562 and LME49720 in TO-99 cans are being discontinued. NE5532, e. Regarding the use in high-end preamps there are now at least 4 opamps that seems to be interesting. Single circuit op amp, AD797, LME49990, LME49710, OPA627 etc: Aug 22, 2007 · Here in my country you can buy at least 5 different LME49720 chips. This audio operational amplifier is unity gain stable and achieves outstanding AC performance while driving complex loads with values as high as 100pF. Over this supply range the LME49722 maintains excellent common-mode and power supply rejection, and low input bias current. Other op amps you can try are AD823's but they can be a bit noisy when used at the inputs of a phono stage so I prefer them in the output stages. Aug 22, 2007 · Here in my country you can buy at least 5 different LME49720 chips. Jul 14, 2012 · I wonder what the difference is between the LME49720 & LM4562. com. Two sockets, two chips, two 9V Aug 28, 2023 · The comparison between the LM4562 and NE5532 operational amplifiers (op-amps) is an essential journey into the world of audio electronics, where the intricacies of sound quality and performance are paramount. Oct 1, 2009 · Anyone built the phono pre from LM4562/LME49720 datasheet? Tolu 2009-10-01 12:26 pm 1 2 3 Aug 22, 2007 · TI lists the LM4562 as active and has a datasheet from April 2013, this would rather indicate that the LM4562 has not been relabeled to LME49720 (which is listed too and has a datasheet of its own). Nov 3, 2008 · Hi I am a little bit confused about the new product range of National. I initially suspected a common mode limitation or polarity reversal but quick tests confirmed this was not the case. 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。 Mar 26, 2005 · I'm thinking of swapping the stock OPAMPS on my soundcard to something like these, LM4562 - National Semiconductor - LM4562NA [LM4562] - £4. MUSES8820 is the best, IMHO. Highs are very extended and clean with great projection. TI is a global leader in the production of analog and digital signal processing (DSP) integrated circuits, as well as embedded processors and other microcontroller products. Page: 33 Pages. Part Number: LME49720 Other Parts Discussed in Thread: NE5532, OPA1602, OPA1612, OPA1622, OPA1662, OPA1652, NE5534, LM4562 Hi, I am working on a new product development, and am experiencing excess noise problems with certain samples of LME49720. You need to get something else for MC phono. However a pair of the AD797BRZ is slightly better, just slightly. head-fi. 309dBc=0. Op-Amps Test: LME49720 vs 4580D vs MUSES02 vs SS3602 vs NE5532! Find Out Which Rocks on the ZD3 DAC! May 29, 2021 · 愛用しているNFJのFX-AUDIO FX502J-Sのオペアンプを標準のNE5532からLME49720と同じと言われているLM4562に変更しました。 LM4562とOPA627AUどちらにするか？ LM4562は500円、OPA627AUは3000円!!で全く値段が違います。 世間的な評価はOPA627AUは絶対正義で、買っておけばまず間違いなく満足できると思います Jun 29, 2021 · LME49720 is an audio operational amplifier. On top of this I would place the decompensated op-amps, when you fine tune their feedback and/or custom compensation loops, they outperform even the AD797BRZ pair. In addition to that, which instrument 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. Feb 23, 2019 · There are questions if it matters which type of op-amp is used in the audio amplifier and my answer is that it depends on circuit schematics and op-amp parameters. The NE5532 is budget-friendly, reliable, and great for home recordings or cost-conscious projects. Oct 8, 2001 · The ne5532 is a great op amp. Manufacturer: National LME49720是LM4562的马甲，当年国半要推出它的LME系列音频功放，所以就把LM4562命名为LME49720，不过因为LM4562已经广泛应用了，所以又保留了这个型号。 Mar 22, 2022 · LME49720 (dil), fet input, bi-polar output, very good opamp especially dynamics and the bass, which is think is tightened up artificially by the midrange being slightly thin/hot, making the leading edge of bass seem tighter and faster. Either they did this for marketing reasons or the are different chips. This article explores the subtle intricacies of its circuit configuration, explores its market value, and examines comparable alternatives. Apr 28, 2009 · @Moses4188, I would try OPA1612 in I/V and LPF, but also LME49720/LM4562 in I/V and LPF as well. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. » Tue Sep 22, 2015 3:37 pm carlalex wrote: Point taken. The current noise forms a voltage noise source, when if flows through the resistance, connected to the input. schematic of LME49710 LME49720 and LM4562 (LM 4562 LME 49710 49720) The LME49722 has a wide supply range of ±2. Limited stock available. Apr 14, 2016 · Dual circuit op amps, OPA2134, LM4562, LME49720 etc: For single op amps the supply pins are 4 for - and 7 for + seen here, the little crater on the op amp is near pin 1 . The LM4562 is electrically identical to the LME49720 but cheaper ($3) and comes in a DIY friendly DIP8 package. Capacitive loads up to 100pF will cause little change in the phase characteristics of the amplifiers and are therefore allowable. It Jan 4, 2009 · The LME49860 is great, something between the thickness of the LM4562 and the cold neutrality of the LME49720. Mar 26, 2011 · I used Nichicon, Wima and Panasonic. LM4562 is similar to the LME49720 but can be too sterile. I have been somewhat alarmed however that in April 2015, Sept 2018 and Jan 2019, there are reports of high levels popcorn noise coming from a very high percentage of units. Then National Semi, for marketing reasons, decided to create a new part number. They said yes, the only difference is the number stamped on the outside. LME49720デバイスは超低歪み、低ノイズ、高スルー・レートのオペアンプ・シリーズの製品であり、高性能のHi-Fiアプリケーション用に最適化され、完全に規定されています。高度な最新のプロセス・テクノロジと、最先端の回路設計との組み合わせにより、LME49720オーディオ・オペアンプ Jul 20, 2009 · The usual give away for bias cancellation in an opamp will be the spec. I tried the Burr Brown 2134 op-amp, Linear LME49720, LM4562 and finally single circuit, smd, LME49990's on adapters. 707dBc=0. Nov 26, 2017 · I've also experienced this in high-gain applications. LM1458 is one of the first op-amps usable for audio and it is dated at sixties of the previous century. Maybe someone who has more experience on amplifier compensation than me can help me. Jan 29, 2015 · Since the psrr of the lme49720 is really good and it will correct all, does regulator is really needed ? I just finished soldering of a Bato MM board - composite bridged lme49720/lm3886 with trim offset, remote sensing, and a lot of decoupling onboard, so i'm really interested in your project. The LME49860 is optimized for +-14. Especially on the sound-stage and overall music presentation is more forward with this LM4562. Directly interchangeable with LME49720, LM4562 and Mar 24, 2012 · [IC前级] 说说LM4562和LME49720的区别 [复制链接] 查看: 55994|回复: 26 Part #: LM4562. org/t/521972/lm4562-lme49720-lme49860-do-they-sound-different-to-you Nov 9, 2012 · Tried few OPAMPs myself in I/V, LPF, VAS and BUFFER stages with my Essence One DAC/headamp, like: NE5532, LM4562, NJR2114, OPA1602, LME49720, MUSES8820, MUSES8920, OPA2604, OPA1642, OPA2132PA, AD8672, AD8599, MUSES01, MUSES02. Oct 5, 2025 · LM4562 Phono Pre Amp Circuit Board Page 1 of 2 [ 11 posts ] Go to page 1, 2 Next Page 1 of 2 [ 11 posts ] Go to page 1, 2 Next Dec 28, 2018 · Sensitivity of opamps to air coupled EM fields, especially of the LM4562/LME497XY family Your comments are welcome, but please let me not to reply the questions that are already covered in this text, it was an exhausting job. / bnz) , Muses8920 , Lm4562 หรืออื่นๆ (ถ้ามี) ประสบการณ์สมาชิกทุกท่านใช้อะไรดี + Jan 20, 2007 · LME49710 is the single version of the LME49720 which is to me the same as the LM4562. However, I'm having trouble getting it stable. Jan 27, 2021 · The very best is LME49720/LM4562 and the NE5532 is measurably worse in the D10s. For a better experience, please enable JavaScript in your browser before proceeding. Oct 13, 2015 · I think the most frustrating obsolescence for me is the DIP package LME49720/LM4562. 1) What is the common mode Other Parts Discussed in Thread: LME49720, OPA1611, OPA1602, LME49860, LM4562, LM833 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 mention a 3rd product which I was preparing to launch that is also based Texas Instruments (TI) is a publicly traded company that designs and manufactures semiconductor and computer technology products. Jul 22, 2020 · Any suggestions ? Thank Bye Gaetan Click to expand LM4562 is identical to LME49720. LME49860 is LME49720 with higher power supply 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 applications. May 9, 2014 · LM4562, LME49710, LME49720 Start-up Behavior by mediatechnology » Fri May 09, 2014 6:31 pm I became curious about a few reports on the web regarding single-supply start-up of the LM4562 and the identical LME49720 and single LME49710. Jan 9, 2025 · i) All variants of the LM4562 / LME49720 / LME49860 disappeared over night from TI stock Which caused you to panic. I have a Technics MASH cd player with the SMDs type of opamps needed. sheet showing +- in the Voffset or the Input bias current parameter. Aug 1, 2011 · The LM4562 was the first op amp to unseat the NE5532 as Doug Self’s overall benchmark. Jan 3, 2020 · Sensitivity of opamps to air coupled EM fields, especially of the LM4562/LME497X0 family Jan 29, 2020 · Also, keep in mind that the LME49720 (LM4562) has a fairly hot but heavily degenerated BJT input stage, so if there is highish source impedance remaining anywhere, I would expect the 1/f component of input current noise density to make an appearance. There is always a resonance at 20 to 40 The LM4562 is a high-speed op amp with excellent phase margin and stability. 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. So far, NE5532 was a king in the simple, +6dB gain circuit according to post #1. Aug 22, 2007 · Digikey apparently knows that the LM4562 and the LME49720 are the same part. 00003%) to easily satisfy most demanding audio applications. I initially suspected a common mode limitation or polarity reversal but quick tests confirmed this was not the Jan 11, 2015 · The LM4562 is not EOL but the model has problems. I can understand that if you're using the LM4562/LME49720 in a commercial design at significant volume. They made the 4562 / 49720 EOL a few years back, but reintroduced them. Nov 7, 2024 · Dual Opamps: NE5532 OPA2134 LM4562 JRC4558 OPA2604 LME49720 LM833 OPA2132 RC4558 MC33078 NJM4556 NJM2068 NE5533 OPA2227 OPA2111 Single Opamps: AD797 OPA627 LME49710 AD823 AD844 OPA604 AD811 OPA134 AD8610 NE5534 AD8065 OPA1611 AD845 OPA827 LT1028 If you don't see your opamp listed above please feeel free to contact us. The sound difference after using NE5532P to this LM4562 is somehow so much different. 05K subscribers Subscribe May 7, 2020 · LM4562、LME49720：三頻非常平衡，高頻中規中矩，中頻和低頻都不錯，聲場不錯，但久聽感覺高頻缺乏感染力，總體還是不錯。 Jul 4, 2009 · - LM4562 seems to have a bit better SNR than NE5532 when used in LPF If you really-really want to use other opamps (though I wouldn’t really call it an upgrade) you could use in IV MUSES 01 or 8920 and in LPF BURSON V6 or V5, MUSES 02 or 8820 (in order of prefference). Feb 4, 2014 · I think this has all been discussed before, but comparing datasheets for LM4562, LME49720, and LME49860, they sure look strikingly similar. The LM4562 is part of the ultra-low distortion, low-noise, high-slew-rate operational amplifier series optimized and fully specified for high-performance, high-fidelity applications. Jul 4, 2009 · LM4562, LME49720 and LME49860 are basically the same opamp. Really, the input amp as-is isn't bad. 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. I became curious about a few reports on the web regarding single-supply start-up of the LM4562 and the identical LME49720 and single LME49710. Main exception would be LME49860 is specified for higher voltage rails. I'm strongly leaning to simply using the LME49720 here. If you want discrete, then Sonic Imagery 994 or the Weiss op amps. LME49720 is indeed identical to LM4562. Find parameters, ordering and quality information Jan 27, 2021 · The stock op-amp is LME49720. LME49720 is LM4562 with a better manufacturing. 99 : AV Cables and Interconnects, UK Cables Shop Are they the same as these on the Bay? 2x LME49710 NA Opamp Single Version of LM4562 LME49720 on 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 Feb 5, 2009 · Certainly in the realms of the pre Im building at this point. This has been dispelled by people employed by NS and TI -- back then and currently. (I have not compared the Jul 20, 2009 · Where are intern. It's cheap, and it performs remarkably well in the CNC circuit. They don't stock both. tomchr. I love details clarity, soundstage - listen to rock classical and vocals. Really outstanding performance, in a package that hobbyists love, and at a really good price. For phono stages NE5534 is the first choise. Jun 8, 2023 · THD=-114. Other Parts Discussed in Thread: LME49720 , LM4562 Dear Engineers, I have two questions regarding this operational amplifier. Jun 16, 2021 · The only difference I could see clearly is the price and the Vn ( a difference of 0. They have the LME49710 and 40, but they have the dual listed only as the LM4562. Oct 2, 2021 · The LME49720 is based on "low bias, low current noise, slow silicon" model with two stages of gain, very high levels of loop feedback (< 140dB 10Hz OLG) at lower (audio) frequencies and 55MHz GBWP with 20V/uS slew rate. The Burson V7 Vivid is a drop-in replacement for many types of op amp: Dual AD823, AD823AN, AD8066, AD8620, AD712, AD827, C4570, JRC4556AD, JRC4580, JRC5532, JRC5532D, JRC5532, LF353, LM4562, LME49860, LM833N, LME49720, MUSES8920, NE5532, NEC4520, NEC4570, NJM2068D, NJM2114, NJM2214D, NJM4558, NJM4 Feb 11, 2021 · LM4562 was released just before National changed their product naming convention. The company serves customers LM4562与LME49720均为双通道运放芯片，具有低失真、低噪声、高增益特点，适用于音频应用，工作电压范围及THD+N等参数有差异。 TI’s LM4562 is a 2-channel, 55-MHz, high-fidelity, high performance audio op amp. Some say it is the same as LME49720, but anyway this LM4562 is lot cheaper. The LME49720 is bias current-compensated and has higher current noise than the 5532. Jul 12, 2019 · The LM4562 (same die as the LME49720) was designed to produce a low open loop distortion - likely better than a 5532. ) , AD797 (anz. The current and voltage noise densities add at the op-amp inputs. I have compared it with NE5532, OPA2134 and also LM4562, which is in fact an equivalent to LME49720. Several reference are used on forum. I'm testing, LM4562, LME49720, NE5532 on a preamp PCB (to be reviewed in detail soon) using slew rates as a comparison in order to test for fakes. Jul 5, 2006 · Yeah, LM4562 is a good alternative, I think it can directly drive headphones without need of a buffer. In stock! - HPA-10 headphone amp (ASR Review). The LME49720 combines extremely low voltage noise density (2. File Size: 2MbKbytes. 000153% LME49990 （already discontinue） THD=-117. Nordcore, yes indeed. 5 to 22 volts. carlmart: use the LME49710 model. It walked all over every sub-$3,000 preamp in the store. If the impedance seen by the input is greater than about 2k925, the LM4562 will be more noisy, than the NE5532. When a designer attempts to scale circuit impedances up and attempts to use the LME49720 like a BIFET they can latch-up on start-up. / bp. Haven't tried the new OPA164x series, but word is that they sound good. I already replaced them with Geniune NE5532APs ordered from RS components. It was founded in 1930 and is headquartered in Dallas, Texas. But now, in the D10s, situation is quite different. Apr 1, 2012 · The LME49720 is pin for pin compatible for the OPA2134, the OPA's have the typical laid back Burr Brown sound. Quite comprehensive tests are performed. Some of those parameters are obvious from datasheets, but others may be quite hidden and not clear from the first view. if you can employ it properly. OPA2604AU In The The LME49722 has a wide supply range of ±2. in some line level circuitry. The making of the thing is interesting in and of itself, as are the things I learn along the way. An audio preamp typically needs low noise and high gain, and typically doesn't care about current draw. Feb 2, 2024 · What's the difference between LME49720 and LM4562? Their specs seem to be identical; the 4562 is a bit less expensive. I may be inclined to go up to 6k8/2k2 for reduced output stage loading at worst-case levels, but that's about it. Also, don't get both and expect them to be different. For what it's worth, the baseline speakers that this project will replace are Infinity Overture 3s. 5V operation, but it's a very good chip. Part Number: LME49720 Other Parts Discussed in Thread: LM4562, Hello TI, I was about to choose an LM4562 / LME49720 for an audio amplifier application as their price vs performance on the face of it looks fantastic. strangely its probably the most boring sounding one when paired with 400i but the best sounding with hd600 Apr 18, 2019 · รบกวนสอบถามเบอร์ Opamp ตระกูล 5532 (A / AP / N) , LME49720 , OPA2134pa , OPA627 (ap. @chermann bro already played with LM4562, LME49720 & OPA2134 (BB), and listened for hours. It could be very interesting to test their performance: - SNR - Bandwish - slew rate -. Mar 5, 2018 · Hello everybody, I read on several forum the advantage to use specific AOP for the final stage of DAC or Amplifier. What's the deal with the different numbers? are you looking into moving coil or moving magnet designs? the answer has impact on the best choices Jun 29, 2010 · LME49720と LME49860とは、電源電圧の違い以外では、回路・音源・好みなどによって選び分けられる違い、でしょうか。 ベースの LM4562がいい、という方もいるはずです。 ＞LME49860の方が多少クールな表現かもしれません。 なるほど。 Jan 23, 2012 · By the time the single was released, National had changed their numbering scheme; the original plan was to phase out the LM4562 number and use just LME49720, but the former had gained too much traction in the market place. output voltage at 1kHz and 10kHz, measuring BW 45kHz. if the gain is going to be x1 then you would need a unity gain stable op amp. Nov 9, 2016 · Member Joined 2016 2016-11-15 10:38 pm #5 i mean who give more natural sound and who beeter i never found a sound card with LME49720 only MUSE 8920 Jul 4, 2009 · LM4562 LME49720 and LME49860 are supposed to be technically the same but as far as I am concerned LM4562 < LME49720HA < LME49860 with the 49860 noticeably better. Jul 25, 2016 · Hello all My Marantz and most of my CD players have the LM4562 which I find is great. They recently moved a lot of legacy analog, including the 5532 and 5534, to a 300mm process and I expect that the LM49720 is also run on 300mm lines. Tue Sep 22, 2015 3:37 pm carlalex wrote: Point taken. With Phono Preamps…LME49710 /LME49720 TO-99, metal can. The pre now has a significantly wider soundstage, great detail and imaging, deeper bass and crystal highs. Samuel Groner did raise some common mode concerns with the LM4562 depending on how it’s configured. 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