Help with this AO please

Discussion in 'General Electronics Chat' started by Theliel, May 17, 2006.

  1. Theliel

    Thread Starter New Member

    May 17, 2006
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    [​IMG]

    a ) I need resolve gain range for P=0.1k to 10K
    b ) Vout when CMRR = 80dB

    Thank in advance
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Greetings Theliel,

    I appreciate your patience in awaiting an answer on your posting. It has taken several weeks of sporatic effort to complete the writeup since I did not have the luxury of working on it without interruption.

    I would like to express my appreciation to JoeJester for his valuable assistance in proof-reading the various incarnations of the document and for providing the figures that were used. His contributions and support were pivotal during the several weeks it took to prepare and edit the document.

    Along with the writeup, I have included a log-log plot to show how the gain changes with varying values of resistance P.

    I was not totally clear on the b. part of your posting. Maybe one of the other members can provide an answer to that question.

    Enjoy,
    hgmjr

    See later post in this thread for the attachments....
     
  3. JoeJester

    AAC Fanatic!

    Apr 26, 2005
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    hgmjr,

    It was my pleasure assisting you on this quest.
     
  4. hgmjr

    Moderator

    Jan 28, 2005
    9,030
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    Here is the attachment that went missing in the transition to vbulletin.


    hgmjr

    Search Keywords: opamp differential amplifier gain equation millman's theorem expression derivation thevenin's
     
  5. hgmjr

    Moderator

    Jan 28, 2005
    9,030
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    Here is the plot.

    hgmjr
     
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