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Slew-rate of Op Amps in practice

  1. Aug 10, 2012 #1
    1. The problem statement, all variables and given/known data

    We have a given op-amp, the data sheet has a specified slew-rate value for it, but in practice it happens to be a lot lower.

    I essentially used a step-input to determine the slew-rate and found it to be much lower. I can't remember the exact values now. I think The maximum slew-rate was 1V/us, but I calculated it based on the square wave input (step) to be like 0.4V/us, why would this be?

    Thanks
     
  2. jcsd
  3. Aug 10, 2012 #2

    lewando

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    Gold Member

    What its the slew rate of your step input generator?
     
  4. Aug 11, 2012 #3

    rude man

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    Slew rate is also a function of circuit configuration, in particular the power supply voltages and output loading, especially if capacitive.
     
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