Prb5 b
.options list node post 
.option scale=0.18u 
.op
.include '18u.l'

.dc VIN 0 1.5 1m 

VD	DD	0	DC	1.8
VIN	B	0	DC	0
IS	S	0	DC	100u

.param L=1 W='10*L'

M1	DD	DD	S	B	nmos	l=L	w=W	  AD='5*L*W/2'		AS='5*L*W/2'		PD='(10*L/2)+(2*W)'		PS='(10*L/2)+(2*W)'
.print Vout=v(DD,S) Ids=i(M1) GM=PAR('i(M1)/v(out,0)') $-V(S)'
$conductance=PAR(慽(m1)/v(22)