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GATE ECE 2003 | Question: 14

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If the differential voltage gain and the common mode voltage gain of a differential amplifier are $48 \mathrm{~dB}$ and $2 \mathrm{~dB}$ respectively, then its common mode rejection ratio is

  1. $23 \mathrm{~dB}$
  2. $25 \mathrm{~dB}$
  3. $46 \mathrm{~dB}$
  4. $50 \mathrm{~dB}$

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