MIC5557 into integrator op amp

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

  1. Gibson486

    Thread Starter Active Member

    Jul 20, 2012
    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
    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.