3 op-amp in-amp superposition derviation

Discussion in 'General Electronics Chat' started by Distort10n, Dec 2, 2007.

  1. Distort10n

    Thread Starter Active Member

    Dec 25, 2006
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    1
    I have not completed any derivations in a while. I have attached the transfer function derivation of the INA121 from Texas Instruments using Superposition.
    This will be the next subject to put on my website.
    Please review for any errors.
     
  2. The Electrician

    AAC Fanatic!

    Oct 9, 2007
    2,281
    326
    Looks good to me. Here's what I got using another method:
     
  3. studiot

    AAC Fanatic!

    Nov 9, 2007
    5,005
    513
    Your arithmetic is fine Sir Knight.
    Thought you might be interested in adding this derivation of the statements you have made in square boxes, without proof. I have followed your notation.
     
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