CMRR help

Discussion in 'Homework Help' started by alialiali, Jan 11, 2009.

  1. alialiali

    Thread Starter Member

    Dec 12, 2008
    26
    0
    Hi every one can any one answer this quastion
    how CMRR varies with the frequency of the
    common mode signal. for difference amplifier op amp?
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    It has the shape of a low pass filter response it think with three break frequencies. Look in some op amp datasheets, maybe they have its graph.
     
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