Version 4
SHEET 1 2428 1336
WIRE 320 240 0 240
WIRE 320 304 320 240
WIRE 0 320 0 240
WIRE -48 400 -192 400
WIRE -192 464 -192 400
WIRE -256 624 -368 624
WIRE -192 624 -192 544
WIRE -192 624 -256 624
WIRE 0 624 0 416
WIRE 112 624 0 624
WIRE 176 624 112 624
WIRE 320 624 320 384
WIRE 384 624 320 624
WIRE -368 656 -368 624
WIRE 176 672 176 624
WIRE 384 704 384 624
WIRE -192 720 -192 624
WIRE 176 800 176 752
WIRE -368 816 -368 736
WIRE 0 864 0 624
WIRE -192 880 -192 800
WIRE -48 880 -192 880
WIRE 320 912 320 624
WIRE 0 1040 0 960
WIRE 320 1040 320 992
WIRE 320 1040 0 1040
FLAG -368 816 0
FLAG -256 624 VIN
FLAG 176 800 0
FLAG 384 704 0
FLAG 112 624 vout
SYMBOL voltage -368 640 R0
WINDOW 123 -75 91 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -256 104 Left 2
WINDOW 0 45 31 Left 2
SYMATTR Value ""
SYMATTR InstName Vin
SYMBOL voltage 320 288 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 40 41 Left 2
WINDOW 3 53 77 Left 2
SYMATTR InstName Vpos
SYMATTR Value 60
SYMBOL voltage 320 896 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 39 41 Left 2
WINDOW 3 55 76 Left 2
SYMATTR InstName Vneg
SYMATTR Value 60
SYMBOL voltage -192 448 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vspreadp
SYMATTR Value {Vspread}
SYMBOL voltage -192 704 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vspreadn
SYMATTR Value {Vspread}
SYMBOL res 160 656 R0
SYMATTR InstName Rload
SYMATTR Value 8.0
SYMBOL nmos -48 320 R0
WINDOW 3 65 4 Left 2
SYMATTR Value 20N20-Tjp
SYMATTR InstName M1
SYMBOL pmos -48 960 M180
WINDOW 3 97 31 Left 2
SYMATTR Value 20P20-Tjp
SYMATTR InstName M2
TEXT -944 496 Left 2 !.step param Vspread list 0.794 1.0142\n.dc Vin -50 +50 0.1\n;.op
TEXT -952 904 Left 2 !*20N20-Tjp VDMOS with subthreshold (c) Ian Hegglun 21 May 2015\n.model 20N20-Tjp VDMOS (Rg=30 Vto={0.155-1.6m*(Tjp-25)}\n+ Rs={0.12*(1+2.5m*(Tjp-25))} Kp={2.40/(1+7.4m*(Tjp-25))}\n+ Ksubthres={0.09*(1+1m*(Tjp-25))} Mtriode=0.3  Rd=0.16 Lambda=3m\n+ Cgdmax=200p Cgdmin=10p a=0.25 Cgs=1200p Cjo=2200p \n+ m=0.7 VJ=2.5 IS=8.0E-6 N=2.4 mfg=IH150521)
TEXT -952 608 Left 2 !.options plotwinsize=0\n.options numdgt=7\n.param Tjp=Temp\n.temp 40
TEXT -976 272 Left 2 !.model 20P20-Tjp VDMOS (pchan Rg=30 Vto={-0.61+2.2m*(Tjp-25)} \n+ Rs={0.17*(1+2.0m*(Tjp-25))} Kp={1.85/(1+8.4m*(Tjp-25))} \n+ Ksubthres={0.105*(1+5m*(Tjp-25))} Mtriode=0.35 Rd=0.05 Lambda=5m\n+ Cgdmax=200p Cgdmin=10p a=0.25 Cgs=1200p Cjo=2200p \n+ m=0.7 VJ=2.5 IS=8.0E-6 N=2.4 mfg=IH150521)
TEXT 72 568 Left 2 ;d(v(vout))