Module 4 : Propagation Delays in MOS
Lecture 17 : Pseudo NMOS Inverter
17.7
nMOS saturated, pMOS linear (contd..)
The solutions are:
substituting the values of V1 and V2 and choosing the sign which puts V0 in the correct range, we get
As the input voltage is increased, the output voltage will decrease.
The output voltage will fall below Vi - VTnwhen
 
The nMOS is now in its linear mode of operation. The derived equation does not apply beyond this input voltage.
   
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