Input capacitance of LM324

Discussion in 'General Electronics Chat' started by Nano001, Mar 1, 2011.

  1. Nano001

    Thread Starter Active Member

    Jan 12, 2010
    Hi everyone. I was just wondering if anyone knew the input common mode capacitance of the LM324 opamp. I am designing a transimpedance amplifier using this device and I cannot find the capacitance in the data sheet. Thanks for any help.
  2. Audioguru

    New Member

    Dec 20, 2007
    The LM324 and LM358 don't have a high input impedance and have poor high frequency response so their input capacitance doesn't matter.
    Maybe you should use a newer opamp with better spec's.