Pre Amplifier Circuit Analysis

Discussion in 'The Projects Forum' started by baseball07, Jun 1, 2010.

  1. baseball07

    Thread Starter Active Member

    Apr 24, 2007
    Hi everybody. I have this Pre Amplifier circuit which is attached, however I cannot find anything like it in any CMOS text books. It does not seem to be of the differential type and I would like to piece it apart and analyze it. I recognize the current mirror in the top left, and the gate-drain connected MOSFET in the top right (resistor of value 1/gm). However I don't understand how the rest works. Could someone please help me understand this circut? Thanks very much.