What is the LM386 audio amplifier? The integrated chip LM386 is ... The external parts shown on diagram 3.1 can be selected to get the desired gain. Circuit A will give a voltage amplification of 200.

The recent EDN article of Bruce Trump () on the input impedance of an op-amp circuit took into account the single-pole roll-off of its loop gain. He showed with a simple derivation how the equivalent ...