Width verus bandwidth MOSFET

Discussion in 'General Electronics Chat' started by vustudent, Oct 20, 2010.

  1. vustudent

    Thread Starter Active Member

    Mar 11, 2009
    An amplifier using a mosfet with an AC small input is subject to a certain gain bandwidth, since at high frequency the signal would be shorted to ground through Cgs.

    If dimensions of the nmos is not a restrain, would increasing the width of would lower the effective capacitance Cgs, therefore gives me more bandwidth?
    Last edited: Oct 20, 2010