CMRR of the preamplifiers should be as high as possible.(a) True(b) FalseThe question was posed to me during an interview.This interesting question is from Sources of Noise in Low Level Measurements topic in portion Recording System of Biomedical Instrumentation

CMRR of the preamplifiers should be as high as possible.(a) True(b) Fa

1.	CMRR of the preamplifiers should be as high as possible.(a) True(b) FalseThe question was posed to me during an interview.This interesting question is from Sources of Noise in Low Level Measurements topic in portion Recording System of Biomedical Instrumentation
Answer» The correct option is (a) True The best I can explain: CMRR of the preamplifiers should be as high as POSSIBLE so that only the wanted signals find a way through the amplifier and all unwanted signals get rejected in the preamplifier stage. The ability of the amplifier to reject these COMMON voltages on its two INPUT leads is known as common-mode rejection and is specified as the ratio of common-mode input to differential input to elicit the same response. CMRR is an important specification REFERRED to the differential amplifier and is normally EXPRESSED as decibels.

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CMRR of the preamplifiers should be as high as possible.(a) True(b) FalseThe question was posed to me during an interview.This interesting question is from Sources of Noise in Low Level Measurements topic in portion Recording System of Biomedical Instrumentation

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