in an simple inverter.........
when i gave Vdd=1.8V for source of nmos and source of pmos connected to ground.......(interchanging the power supplies)......
i kept W/L of pmos as 3 and W/L of nmos as 1 and
when i simulated in hspice
i found the output as DC at 0.9V for a square wave input........
Your NMOS and PMOS are bothe off.
And they basically act as huge resistances. The voltage gets divided depending on the off resistances of the devices.
both are not off....pmos will be in saturation since Vg(pmos)=0V(input being a square wave..amplitude varies between 1.8 and 0) and Vs(pmos)=0V...
Vgs=0 which is less than Vt...
both are not off....pmos will be in saturation since Vg(pmos)=0V(input being a square wave..amplitude varies between 1.8 and 0) and Vs(pmos)=0V...
Vgs=0 which is less than Vt...