thermal voltage

Discussion in 'General Electronics Chat' started by Xufyan, Sep 8, 2011.

  1. Xufyan

    Thread Starter Member

    Aug 3, 2010
    how to remove the effect of thermal voltage completely from a logarithm opamp circuit :/ ??
    i am totally messed up with this , can't able to remove the effect to get the accurate log result.
    btw, i have connected diode as a feedback in inverting-opamp but the output is different from real log value.