CFB opamp

Discussion in 'Homework Help' started by xxxyyyba, Oct 24, 2015.

  1. xxxyyyba

    Thread Starter Member

    Aug 7, 2012
    249
    2
    Hi!
    Here is my task:

    mijan.png
    Any idea?
    I have hard times figuring out how circuits with CFB OPAMPs are analysed.
     
  2. MikeML

    AAC Fanatic!

    Oct 2, 2009
    5,450
    1,066
    1. Write an equation for V-
    2.Write a different equation for V+
    3. Because of the behavior of a closed loop opamp, V- = V+.
    4. reduce the resulting single equation to express Viz as a function of V1 and the four resistors...
     
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