The op-amp configuration with the highest possible input impedance is:
A)voltage-follower op-amp.
B)inverting op-amp.
C)non-inverting op-amp.
D)differential op-amp.

Question

Quizplus · Accepted Answer

The voltage-follower op-amp configuration has the highest input impedance because it directly connects the input to the non-inverting terminal, resulting in an input impedance equal to the op-amp's intrinsic input impedance, which is very high.

The Op-Amp Configuration with the Highest Possible Input Impedance Is