True, but that one's transistors' model is more off than this one, and there is no proper symbol that goes with it. I tried that model and I was not happy at all. For the vast majority of my projects a simple model is far better than the one with all the perks attached.
I've tried some models that at first seemed more elaborate than this one, and they mostly sucked at DC, and took forever to converge in transient. I can imagine several applications where various parasitics come to play, but the funniest part is that people who push the models to the limit often use only W and L and nothing else.
Replacing the model I supplied is incredibly easy, so whoever has a better model than this one, please share it.
I tried also this:
.model NMOS NMOS LEVEL=1 VTO=1.4
+ L=5e-6 W=124e-6 TOX=1080e-10
+ LAMBDA=0.01 KP=20e-6 PHI=0.6 GAMMA=1.5
**
.model PMOS PMOS LEVEL=1 VTO=-1.4
+ L=5e-6 W=480e-6 TOX=1080e-10
+ LAMBDA=0.02 KP=6e-6 PHI=0.6 GAMMA=1.5
and this:
.model NMOS NMOS Level=1 Gamma=0
+ Tox=1200n Phi=.6 Rs=0 Kp=111u Vto=2.0
+ Lambda=0.01 Rd=0 Cbd=2.0p Cbs=2.0p
+ Pb=.8 Cgso=0.1p Cgdo=0.1p Is=16.64p N=1
**
.model PMOS PMOS Level=1 Gamma=0
+ Tox=1200n Phi=.6 Rs=0 Kp=55u Vto=1.5
+ Lambda=0.04 Rd=0 Cbd=4.0p Cbs=4.0p
+ Pb=.8 Cgso=0.2p Cgdo=0.2p Is=16.64p N=1
and also this one that performed much better than the rest of them:
(attributed by kcin_melnick, see message #16897)
?
.MODEL NMOS NMOS (
+ LEVEL=1 VTO=1.44 KP=320u L=10u W=30u GAMMA=0 PHI=.6 LAMBDA=10m
+ RD=23.2 RS=90.1 IS=16.64p CBD=2.0p CBS=2.0p CGSO=0.1p CGDO=0.1p
+ PB=.8 TOX=1200n)
?
.MODEL PMOS PMOS (
+ LEVEL=1 VTO=-1.2 KP=110u L=10U W=60U GAMMA=0 PHI=.6 LAMBDA=40m
+ RD=21.2 RS=62.2 IS=16.64P CBD=4.0P CBS=4.0P CGSO=0.2P CGDO=0.2P
+ PB=.8 TOX=1200N)
The last one has also more realistic DC transfer. I could go with that one.