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CMRR is measured in _______________(a) V/s(b) dB(c) dB/s(d) dB/msI had been asked this question at a job interview.Question is taken from Video Printers topic in chapter Recording System of Biomedical Instrumentation

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Right option is (B) dB

Explanation: 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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