Calculate input and output impedance of inverting amplifier (op-amp)

How do figure out input and output impedance of this amplifier gain -10? Assume op-amp is ideal.

I think input is 1k and output is 10k, right?

by wallier9
December 01, 2016

1 Answer

Answer by mikerogerswsm

Apply a current to the input and calculate the change in voltage. The input impedance is then V/I. Similarly apply a current to the output and calculate the change in voltage, The output impedance is V/I. By doing this you will learn what opamps are all about, which is what your prof intended.

+1 vote
by mikerogerswsm
December 01, 2016

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