I am trying to simulate a basic CMOS inverter. I am trying to target a 2.5V for my midpoint voltage but it is shifted about 400mV.
I have attached my circuit and calculations for kp, kn, W/L, Vtn, Vtp, and Vmid. It all works out on paper, just not in the simulation.
There are other parameters in the Level 1 Spice models that I cannot zero out because I get floating point errors if I do.
Any ideas?
I have attached my circuit and calculations for kp, kn, W/L, Vtn, Vtp, and Vmid. It all works out on paper, just not in the simulation.
There are other parameters in the Level 1 Spice models that I cannot zero out because I get floating point errors if I do.
Any ideas?
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