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Analog electronics circuits miscellaneous

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Analog Electronic Circuits

Analog electronics circuits miscellaneous
  1. A differential amplifier has a differential gain of 20,000 CMRR = 80 dB. The common mode gain is given by:
    1. 2
    2. 1
    3. 1
      2
    4. 0
Correct Option: A

20 log10
ADM
= 80
ACM

or log10
ADM
= 4
ACM

or
ADM
= 104
ACM

or ACM =
ADM
=
20‚000
= 2
10410‚000


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