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This question belongs to Electrical Engineering OP Amp

OP amp

?

In the differential voltage gain & the common mode voltage gain of a differential amplifier are 48db & 2db respectively, then its common mode rejection ratio is

A) 23dB B) 25dB C) 46dB D) 50dB

Answer & Solution

Correct Answer: Option C

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Question posted by Examveda

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3 Comments

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Rizwan Ahmad 2 years ago

CMRR = Adiff /Acom = Adiff [dB] – Acom [dB] = 48db-2dB = 46dB

Kumar Goldking 5 years ago

CMRR=gain of diff voltage gain/gain of common mode , in here how its coming 46 answer

Tini.S Russel 7 years ago

how CMRR is obtained

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In the differential voltage gain & the common mode voltage gain...

In the differential voltage gain & the common mode voltage gain of a differential amplifier are 48db & 2db respectively, then its common mode rejection ratio is

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