Cascaded Current mirror low current

Discussion in 'General Electronics Chat' started by legolas11, Apr 3, 2013.

  1. legolas11

    Thread Starter Member

    Feb 26, 2013
    Hi, this is a differential input Opamp with cascaded current mirror. The mirror circuit looks complex but i know it is supposed to provide a stable output current of 6uA ~7uA. But i am getting very low current in fact nearly zero. Can some one please suggest the reason.....

    I have attached the circuit and the current output in differential stage and the current output in output stage