Op-amp freq. response

Discussion in 'Homework Help' started by Musab, Nov 29, 2010.

  1. Musab

    Thread Starter Member

    Sep 20, 2008
    25
    0
    Hi,

    Is the frequency response analysis of the op-amp valid if it is saturated ?

    I have applied an input signal with fixed amplitude, and i varied the frequency and recorded the gain at each frequency. Then I realised that the input causes the amplifier to saturate, so I want to know if the cut-off frequency and the roll-off will change if the amplifier is not saturated.

    Thanks,
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    The amplifier has not to be saturated in order to determine its cut-off frequency correctly.
     
    Musab likes this.
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