how to remove 2Volt offset?

Discussion in 'General Electronics Chat' started by bimbel, Feb 5, 2014.

  1. bimbel

    Thread Starter New Member

    Feb 5, 2014
    1
    0
    I have a strain gauge application and I use instrumentation amplifier (INA 125) to signal conditioning. At the output of INA I have an offset of 2 Volt.
    Do you recommend a circuit for removing the offset, please?
     
  2. ericgibbs

    AAC Fanatic!

    Jan 29, 2010
    2,503
    380
    hi b,
    You need to add an OPA on the output of the INA125 and remove the +2V offset in that OPA stage.
    E
     
  3. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,392
    1,606
    Pin 5, the reference input, looks like you've nailed it to the source of your 2V offset.

    Move that pin to ground and your offset should go away bye-bye.
     
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