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Problems with op-amp input offset voltage

Discussion in 'General Electronics Discussion' started by surendra.jadhav, May 20, 2011.

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  1. surendra.jadhav

    surendra.jadhav

    1
    0
    May 20, 2011
    Hi,
    I am facing the problems with offset voltage of the op amp. My op amp has to amplify the very weak signals of the order of 1 to 10mV. As the offset voltage of the LM324 is already 2 to 3mV, it is creating the problems in the output.
    There is no offset pin also so that I can reduce the offset to zero.
    What should I do in this case in order to reduce the offset?
    Surendra.
     
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,497
    2,839
    Jan 21, 2010
    You might want to look into chopper stabilised op-amps.

    Look here, here, and here.
     
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