MCQ Practice Question

Electronic Devices & Circuits Instrumentation Amplifiers

In an ideal instrumentation amplifier, a key desired characteristic is?

AHigh input impedance with high common-mode rejection
BVery low input impedance at both inputs
CNo differential gain
DOperation only as an oscillator

Correct Answer: A. High input impedance with high common-mode rejection

Explanation: Instrumentation amplifiers are designed to amplify small differential signals while loading sources minimally and rejecting large common-mode components.

Reference: Standard analog electronics: instrumentation amplifier