NMOS-PMOS circuit

Thread Starter

braddy

Joined Dec 29, 2004
83
HI,
The teacher gave us an hint about a problem that might appear on an exam.
I was not able to solve it and I need some assistance pleas.
Find the current ids for the following circuit:
see attachment.

I have simulated the circuit with Pspice and I get the following values ids= 2.75[mA]
and Vout=4.32[V]

the paramter for the transistors were:
NMOS Kp=500 u and Vto=1[V]

PMOS Kp=500 [uA/V^2] Vto=-1[V]

I tried the saturation formula but I did not find the values.

I also tried to use the load lines for the transistors but I had trouble graphing the load line for the NMOS (bottom transistor).
Please can someone help me please?
 

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