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Form, Fit and Functional replacement for OP227AY/883


  I would like to understand if there is any FFF replacement solution (pin to pin & operational similarity) available for OP227AY/883 instrumentation amplifier IC. I am aware of the fact that LT1002 and LT1024 is a pin to pin match for the IC, but OP227AY/883 is a military grade component with operating temperature range of -55 to +125 Degrees. The military grade variants of LT1002 and LT1024 has unfortunately gone obsolete as well. So, could you please suggest any other option which would satisfy all the above criteria's. If there is no suitable alternate IC available presently, could you please let me know if there is any possibility of an introduction of a new IC which would match all the above criteria's.



  • Hello,

    The suggested replacement part for the OP227 is AD8672-EP.
    This part is a Precision, Low Noise, Low Input Bias Current Op Amp and also specified over -55 to 125'C temperature range.
    However, this is available in 8-lead SOIC_N only.

    Can you check if this part meet your requirements?

    You can check AD8672-EP data sheet here.
    And the ordering guide of this product is in this link.

    Thanks and regards.