.temp 30
                                                                                
simulator lang=spectre

m0 d g s b n20nativevhv1 m=2

simulator lang=spice

vntub nt 0 DC 0
vsub sub 0 DC 0
vd d nd DC 0.1
vnd 0 nd DC 0
vg g ng DC 0
vng 0 ng DC 0
vs s ns DC 0
vns 0 ns DC 0
vb b nb DC  -5
vnb 0 nb DC 0

.DC vg -1.0 3.0 0.01
simulator lang=spectre
save  vnd:p 
simulator lang=spice