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Notes on Audio Op-Amps - Tangentsoft
https://tangentsoft.net/audio/opamps.html
Notes on Audio Op-Amps. ... The chip has a lot more resolution compared to lesser chips like the OPA132/134 and the AD823, but it doesn't quite match that of high-end chips like the AD843 and OPA627. Voltage-wise, it's a …
The Top 10 Operational Amplifiers on SnapEDA – …
https://blog.snapeda.com/2019/10/23/the-top-10-operational-amplifiers/
Audio Op Amps - It's The Loop Gain You Seek, Not The ...
https://sparkoslabs.com/discrete-op-amps/audio-op-amps-gain-seek-bandwidth/
A Realization: Since IC op amps use single pole compensation and therefore have a 6dB / octave gain roll off, it is possible to plot the maximum theoretical gain that could ever exist at any frequency, knowing only the bandwidth. We simply draw a line up from the unity gain bandwidth point at a 6db/octave slope, and we can see right away how much loop gain is possible at any …
EETimes - Op amps in small-signal audio design - Part 1 ...
https://www.eetimes.com/op-amps-in-small-signal-audio-design-part-1-op-amp-history-properties/
The JFET op-amps have more voltage noise but less current noise than bipolar input op-amps, the TL072 being particularly noisy. If you want the lowest voltage noise, it has to be a bipolar input. The difference, however, between a modern JFET-input op-amp such as the OPA2134 and the old faithful 5532 is only 4 dB, but the JFET part is a good deal more costly.
Burson Op-amps | Audiofool Reviews
https://audiofool.reviews/2018/03/13/burson-op-amps-v5i-and-v6/
The v5i semi-discrete op-amp in the walnut did have one immediately noteworthy difference. It is louder at the same setting compared to any of the IC designs. This throws another wrinkle into the testing as we all know a louder sample is usually perceived as a more detailed sample. I did my best to volume match the samples so I could judge fairly.
Flavors of Audio Op-Amps | Headphone Reviews and ...
https://www.head-fi.org/threads/flavors-of-audio-op-amps.82708/
All measurements are subject to personal taste, so this Op-Amp comparison is only sharing of my experience with those Op-Amps, with hope there will be readers benefit from it. The Result: [size=xx-large]AD8620 [/size] Very bright and lively sounding Op-Amp. The treble sounds a bit too dominant. Very good detail and imaging.
Audio Op Amp | Overview | Operational Amplifiers | TI.com
https://www.ti.com/amplifier-circuit/op-amps/audio/overview.html
Audio op amps for the most. discerning audio enthusiasts. Explore our portfolio of audio op amps and deliver a superior audio experience to your customers. Our Burr-Brown™ and SoundPlus™ legacy has led to the high-performance, ultra-low noise, low power and small-size audio op amps that will help differentiate your audio applications.
What's the absolute best opamp for audio purposes? | All ...
https://forum.allaboutcircuits.com/threads/whats-the-absolute-best-opamp-for-audio-purposes.62897/
11,249. Dec 3, 2011. #2. With a 30V supply and a single-ended amplifier circuit the power into 4 ohms is only 13.8W. Maybe your speakers are rated at 60W peak which is 30W RMS. An OPA134 single, OPA2134 dual or OPA4134 quad opamp is excellent. The max allowed supply is 36V. Thread Starter.
Audio Designs With Opamps
https://sound-au.com/dwopa.htm
#1 An opamp will attempt to make both inputs exactly the same voltage (via the negative feedback path) #2 If it cannot do so, the output will assume the polarity of the most positive input Needless to say, this requires some explanation. So let's look at Rule #1. #1 An opamp will attempt to make both inputs exactly the same voltage
Cycfi Research
https://www.cycfi.com/projects/six-pack/op-amp-shootout
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