Op Amp Audio Servo | Audio-Digital.net

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What is a servo? - Universal Audio | Audio Interfaces

https://www.uaudio.com/webzine/2006/december/text/content2.html

The servo op-amp does not need to have exceptional bandwidth, slew-rate, input impedance or output impedance, so an op-amp with a very small offset voltage can usually be chosen. It is possible that distortion arising within the servo op-amp could be transmitted to the audio path.

opamp for DC servo | diyAudio

https://www.diyaudio.com/community/threads/opamp-for-dc-servo.39272/

The servo works as an integrator. The opamp's job is to supply current to charge the integrating cap to keep the two inputs at the same level. The result is that at the opamp output you will find a replica of the input signal but lower in amplitude, but as the freq goes down the residual output signal goes up.

Op amp for RC servo audio-controlled | All About Circuits

https://forum.allaboutcircuits.com/threads/op-amp-for-rc-servo-audio-controlled.87688/

So I get some 741 op-amp's and I mouted using the non-inverting scheme. The problem is that the output signal not works with the servos. I have used a 1.5 battery to test the circuit (input), and the output was 2.75V using a 2.2k and 4,6k resistor.

operational amplifier - Integrator as DC servo ...

https://electronics.stackexchange.com/questions/354983/integrator-as-dc-servo

It is designed for audio, while the TL082 is a more general purpose op-amp. NOTE: Just to be accurate, because you have a 2 pole design with C3/R5, and C2/R4, roll off is 6 dB per octave, or 70.7% of 70.7%, which is 50%, or 1/2 intensity per octave. It is not a sharp roll off but it is continuous. At 16 HZ their is nothing left of any DC component.

how to choose servo loop op amp for testing AD624? - Q&A ...

https://ez.analog.com/amplifiers/operational-amplifiers/f/q-a/101554/how-to-choose-servo-loop-op-amp-for-testing-ad624

thanks for your response, I want to use ATE system to verify the AD624 spec as listed in datasheet, but I am not familiar with testing circuit design. it would be great if you can give me some suggestion, the test items contained gain error, Input Offset Voltage,Output Offset Voltage,Input Bias Current ,Input Offset Current ,Slew Rate and so on ...

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