Low Pass gain range for which output not sinusoidal

Discussion in 'Homework Help' started by Tera-Scale, Apr 8, 2012.

  1. Tera-Scale

    Thread Starter Active Member

    Jan 1, 2011
    164
    5
    I have a schematic of low pass sallen key which does not include the supply rails and it is to be taken as an ideal op amp with no supply limits and no compensation cap etc.. My derivation from first principles is ready and correct.

    I need to find out the range of values of gain for which the output is not sinusoidal when a unit impulse is applied at the input. My equations are:

    s-domain (attached)
     
  2. Tera-Scale

    Thread Starter Active Member

    Jan 1, 2011
    164
    5
    I also need to understand why in Filter responses: (Butterworth, Chebyshef and Bessel), they relate pulse inputs with bode plots.
     
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