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CMRR is measured in ____________(a) V/s(b) dB(c) dB/s(d) dB/msI have been asked this question by my college professor while I was bunking the class.Question is from Sources of Noise in Low Level Measurements topic in division Recording System of Biomedical Instrumentation

Answer»

Correct option is (b) dB

To explain I would SAY: CMRR is an important SPECIFICATION REFERRED to the differential amplifier and is NORMALLY expressed as decibels. 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.



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