VID 11 0 DC 0V
E- 1 12 11 0 -0.5
E+ 2 12 11 0 0.5
VIC 12 0 DC 0V
* Power Supplies
VDD 3 0 DC 5VOLT
VSS 4 0 DC -5VOLT
* Netlist for OpAmp Offset Measurement
M1 7 1 5 5 PMOS1 W=36.6U L=6.6U
M2 6 2 5 5 PMOS1 W=36.6U L=6.6U
M3 7 7 4 4 NMOS1 W=5.4U L=6.6U
M4 6 7 4 4 NMOS1 W=5.4U L=6.6U
M5 5 8 3 3 PMOS1 W=30U L=6.6U
M6 9 6 4 4 NMOS1 W=32.4U L=6.6U
M7 9 8 3 3 PMOS1 W=90U L=6.6U
M8 4 9 10 10 PMOS1 W=873.6U L=6.6U
M9 10 8 3 3 PMOS1 W=300U L=6.6U
M10 8 8 3 3 PMOS1 W=300U L=6.6U
Cc 9 6 1pF
*Bias current
IB 8 4 100UA
* SPICE Parameters
.MODEL NMOS1 NMOS VTO=1 KP=40U
+ GAMMA=1.0 LAMBDA=0.02 PHI=0.6
+ TOX=0.05U LD=0.5U CJ=5E-4 CJSW=10E-10
+ U0=550 MJ=0.5 MJSW=0.5 CGSO=0.4E-9 CGDO=0.4E-9
.MODEL PMOS1 PMOS VTO=-1 KP=15U
+ GAMMA=0.6 LAMBDA=0.02 PHI=0.6
+ TOX=0.05U LD=0.5U CJ=5E-4 CJSW=10E-10
+ U0=200 MJ=0.5 MJSW=0.5 CGSO=0.4E-9 CGDO=0.4E-9
*Analysis
*.OP
.DC VID -300uV 300uV .1uV
.TF V(10) VID
.PROBE
.END