Recent content by cimera7

  1. C

    How Does Replacing NMOS with PMOS Affect the VTC Curve of a CMOS Inverter?

    Yes the Vs of the new PMOS is Vout, and gates are wired together. My question was, even if i start with Vg=Vin= 0 and work my way up=> how do you figure out the Vgs of the lower PMOS? since the source of the lower PMOS is set to Vout. How can we figure out if Vgs(lower pmos) is > or < Vt? aka...
  2. C

    How Does Replacing NMOS with PMOS Affect the VTC Curve of a CMOS Inverter?

    Heres an interview question which I am having trouble with: Consider a CMOS inverter. Replace the NMOS in it with a PMOS. How would the VTC curve look like? I was told that one PMOS would always be in saturation. Since the source voltage of the lower PMOS is tied to Vout, how can we...
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