ultra low current mirror

Discussion in 'The Projects Forum' started by tamchung, Jun 11, 2009.

  1. tamchung

    Thread Starter New Member

    Apr 5, 2009
    1
    0
    Does anyone have any idea how to build this circuit by using MOSFET or any approximate devices ? a current range is 100 μA to 2μA. Most of current mirror circuits that i found on the internet work in the range of mA. Thanks
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    It is not a good idea to build a current mirror from discrete components because the transistors are not very close matched. It is better you use an emitter follower circuit.
     
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