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Discussion :: GATE Instrumentation

  1. A differential amplifier with signal terminals X,Y,Z is connected as shown in Fig. (a) below for CMRR measurement where the differential amplifier has an additional constant offset voltage in the output. The observations obtained are: when Vi = 2 V, V0 = 3 mV, and when Vi = 3 V, V0 = 4 mV 

    Assuming its differential gain to be 10 and the op-amp to be otherwise ideal, the CMRR is
    2. A.
    102
    B.
    103
    C.
    104
    D.
    105

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    Workspace

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    Answer : Option C

    Explanation :

    -NA-

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