Film or Ceramic Capacitors for Op Amp Feedback BW Limit?
Does it matter what type of capacitor is used in the feedback path of an op amp to limit audio bandwidth?
I have always used cheap Radio Shack ceramic caps reasoning that I shouldn't care about distortion at frequencies above the audible range as long as it serves it's purpose to stabilize the circuit. But it so happens that I have some fancy 47p film caps (polystyrene I think) and I'm wondering if they would actually be better somehow. I must ask because I don't have the equipment necessary to actually measure a difference.
Does it matter what type of capacitor is used in the feedback path of an op amp to limit audio bandwidth?
I have always used cheap Radio Shack ceramic caps reasoning that I shouldn't care about distortion at frequencies above the audible range as long as it serves it's purpose to stabilize the circuit. But it so happens that I have some fancy 47p film caps (polystyrene I think) and I'm wondering if they would actually be better somehow. I must ask because I don't have the equipment necessary to actually measure a difference.
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