Transistor Models

Two sets of models were used. The simple one was the most commonly used, while the second, more complicated one, was only used in attempts to improve convergence.

* Simplest models, taken from Sedra and Smith
.model mn nmos (level=1 vto=1  kp=20u lambda=0.04)
.model mp pmos (level=1 vto=-1 kp=10u lambda=0.04)
.model mndep nmos (level=1 vto=-1  kp=20u lambda=0.04)
.model mpdep pmos (level=1 vto=1 kp=10u lambda=0.04)

* Taken from ICAP example

.model mn2 NMOS LEVEL=2 LD=0.25U TOX=429E-10 
+ NSUB=5.3087E+15 VTO=0.796 KP=4.991E-5 GAMMA=0.5215
+ PHI=0.6 UO=620.030 UEXP=0.1695 UCRIT=76799.6
+ DELTA=4.4485 VMAX=1E+5 XJ=0.25U LAMBDA=1.6208E-2
+ NFS=2.06E+11 NEFF=1 NSS=1E+10 TPG=1 RSH=30.94
+ CGDO=3.0185E-10 CGSO=3.0185E-10 CGBO=3.8275E-10
+ CJ=1.0159E-4 MJ=0.6306 CJSW=4.744E-10 MJSW=.315 PB=0.8

.model mp2 NMOS LEVEL=2 LD=0.25U TOX=429E-10 
+ NSUB=5.3087E+15 VTO=-0.796 KP=4.991E-5 GAMMA=0.5215
+ PHI=0.6 UO=620.030 UEXP=0.1695 UCRIT=76799.6
+ DELTA=4.4485 VMAX=1E+5 XJ=0.25U LAMBDA=1.6208E-2
+ NFS=2.06E+11 NEFF=1 NSS=1E+10 TPG=1 RSH=30.94
+ CGDO=3.0185E-10 CGSO=3.0185E-10 CGBO=3.8275E-10
+ CJ=1.0159E-4 MJ=0.6306 CJSW=4.744E-10 MJSW=.315 PB=0.8