* c:\users\sumanto\esim-workspace\spamp\spamp.cir
* RUN USING NGSPICE 34
.lib "../../libs/sky130_fd_pr/models/sky130.lib.spice" tt
xm2 Vc net-_cds1-pad1_ net-_c2-pad1_ net-_c2-pad1_ sky130_fd_pr__nfet_01v8  W=100 L=100;
xm1 net-_cds1-pad1_ vin net-_cds1-pad2_ net-_cds1-pad2_ sky130_fd_pr__pfet_01v8  W=100 L=100; 
r4  net-_cds1-pad2_ Vc 6.7meg;
r5  Vc vdd 10meg;
r3  gnd vin 100k;			
v2 vdd gnd 0 pwl (0 0 100m 3); 			Variation of supply analysis
r7  gnd vout 100meg;
r2  vin vdd 100k;
c1  vout Vc 100u;
cds1  net-_cds1-pad1_ net-_cds1-pad2_ 0.1u;
cgs1  net-_cds1-pad1_ vin 0.1u;
cgd1  net-_cds1-pad2_ vin 0.1u;
c2  net-_c2-pad1_ gnd 100u;
r6  gnd net-_c2-pad1_ 1k;
v1 vin gnd 1;					Variation of supply analysis
.tran 10e-06 100e-03 0e-03;			for Transient analysis, supply variation analysis
*.temp 50;
.control;
run;
print allv > plot_data_v.txt;
print alli > plot_data_i.txt;
plot v(vout) vs v(vdd);			Variation of supply analysis
.endc
.end