Question

The ability of the amplifier to reject common voltages on its two input leads is known as ________

(a) common mode rejection rate

(b) coupled mode rejection rate

(c) common mode rejection ratio

(d) coupled mode rejection ratio

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Origin of the question is Sources of Noise in Low Level Measurements in division Recording System of Biomedical Instrumentation

Answer 1

Correct answer is (c) common mode rejection ratio

To explain: The ability of the amplifier to reject common voltages on its two input leads is known as common-mode rejection. It is specified as the ratio of common-mode input to differential input to elicit the same response. It is abbreviated as CMRR (Common-mode rejection ratio).