Version 4
SHEET 1 936 680
WIRE -128 64 -256 64
WIRE 80 64 -48 64
WIRE -256 96 -256 64
WIRE 80 96 80 64
WIRE 32 176 -48 176
WIRE -256 224 -256 176
WIRE 80 224 80 192
FLAG -256 224 0
FLAG 80 224 0
FLAG -48 256 0
SYMBOL voltage -256 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 132 Left 0
SYMATTR SpiceLine Rser=0
SYMATTR InstName V1
SYMATTR Value 2
SYMBOL nmos 32 96 R0
WINDOW 3 56 60 Left 0
SYMATTR Value ""
SYMATTR InstName M1
SYMATTR SpiceModel EC4K01KF
SYMBOL voltage -48 160 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 0
SYMBOL res -32 48 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 15k
TEXT -288 352 Left 0 !;;tran 5m
TEXT -168 376 Left 0 !.model EC4K01KF NMOS(Level=1 lambda=50\n+ Rd=1k Rs=1k Rg=1k Kp=0.002m Vto=-1.2  Cgso=1.7p  Cgdo=1p)
TEXT -296 304 Left 0 !.dc V1 0 5