MIC5557 into integrator op amp

Discussion in 'General Electronics Chat' started by Gibson486, Apr 29, 2015.

  1. Gibson486

    Thread Starter Member

    Jul 20, 2012
    199
    12
    I have an MIC1557 chip going into an integrator opamp. The issue I am having is that the output of the integrator makes a triangle wave like I want it to, however, it jitters a lot (the whole wave just keeps shifting up and down). Yes, there is a coupling cap between the 557 and the integrator. My frequency is approx 250khz. What could the issue be?
     
  2. kdillinger

    Active Member

    Jul 26, 2009
    141
    3
    Your scope probe is not connected to ground. Common issue to see a waveform move up and down on the scope. A tell tale sign is the frequency of this movement is 60Hz.
     
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