Challenging MOS based Source Follower Circuit

Discussion in 'The Projects Forum' started by digdeap, Mar 23, 2009.

  1. digdeap

    Thread Starter New Member

    Mar 23, 2009
    1
    0
    Hi All,

    I've got the following specs for the design of source follower. I've been tryin it for last several days but unable to meet the specs. Please try and help with this.

    Technology Details:

    Lmin = 350nm
    Vdd=3.3V

    Specs
    Output Impedance=100Ω

    Load capacitance = 500f Farads

    Voltage Swing >=2.5V

    Unity gain Bandwidth >= 800MHz

    Small signal input is fed from a 1 farad capacitor

    PS: I'm still not clear what does unity gain b/w for common drain mean as the gain is always less than unity. Please help me guys.
     
  2. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,170
    395
    Since you are near unity , band width should be 800M Hz
     
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