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Homework Help: Open loop gain of an operational amplifier

  1. Jan 6, 2008 #1
    1. The problem statement, all variables and given/known data

    How can the open loop voltage gain of an operational amplifier with AC input voltage be determined experimentally?

    Supply voltage for op amp is +9V.

    2. Relevant equations

    3. The attempt at a solution

    I'm really stuck here. I would appreciate some outline of basically what I have to do so I could even make a first attempt at this.
  2. jcsd
  3. Jan 6, 2008 #2
    An opamp has a very large gain with a DC input, so you must make sure the inputs
    are at the same voltage if there's no input signal.

    Use feedback to do this at DC without producing AC feedback.
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