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__________?
Correct answer: C. 46dB
- A. 23dB
- B. 25dB
- C. 46dB
- D. 50dB
Explanation
The common-mode rejection ratio in decibels is the differential voltage gain minus the common-mode voltage gain: CMRR = 48 − 2 = 46 dB. Therefore option c is correct.
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