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/diy/ - Do It Yourself

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>> No.1666346 [View]
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1666346

>>1666332
>>1666334
I don't know what schematics/devices you have in mind but in case of amps only one pair is used as input, the other one is feedback. Here is an example of a single supply amp. You can google op amp biasing for single supply operartion. One of the inputs is biased at 1/2VCC. And yes you can then AC couple the input signal.

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