Best op amp IC for 200kHz impedance analyzer

Discussion in 'General Electronics Chat' started by kampianakis, May 8, 2014.

  1. kampianakis

    Thread Starter Member

    Jul 10, 2010
    Hello everyone,

    I am developing an impedance analyzer for 10-200kHz and I am looking for a suitable op amp to do the current-to-voltage conversion. I have been working with the TL082 with promising results up, but not completely ok in terms of noise, up to the frequency of around 40-50kHz.

    The output voltages that I will use are below 2.5V and I will need something that has low phase drift and low noise.