what is an input & output impedance of an op-amp?

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what is an input & output impedance of an op-amp?

2007-03-13 20:45:29 · 1 answers · asked by e r 1 in Science & Mathematics ➔ Engineering

1 answers

In a 'perfect' op-amp, the input impedance would be infinite and the output impedance would be zero.

In the 'real' world, o
most op-amps have an input impedance of several megohms (some electrometer types have inputs as high as a few hundred gigaohms) and output impedances of a few tens of ohms down to a few ohms.

HTH ☺

Doug

2007-03-13 20:51:28 · answer #1 · answered by doug_donaghue 7 · 0⤊ 0⤋