Version 4 SHEET 1 2216 816 WIRE 1312 32 1312 -16 WIRE 1136 160 1072 160 WIRE 1312 160 1312 112 WIRE 1312 160 1216 160 WIRE 1440 160 1312 160 WIRE 1680 160 1504 160 WIRE 1696 160 1680 160 WIRE 1312 176 1312 160 WIRE 1312 208 1312 176 WIRE 1696 208 1696 160 WIRE 560 256 560 176 WIRE 912 288 800 288 WIRE 1024 288 976 288 WIRE 1072 288 1072 160 WIRE 1072 288 1024 288 WIRE 1264 288 1072 288 WIRE 1696 336 1696 288 WIRE 800 352 800 288 WIRE 560 448 560 336 WIRE 1312 464 1312 304 WIRE 800 496 800 432 FLAG 1312 176 D FLAG 1312 464 0 FLAG 560 448 0 FLAG 560 176 VDD FLAG 1312 -16 VDD FLAG 800 496 0 FLAG 1696 336 0 FLAG 1680 160 OUT FLAG 1024 288 IN SYMBOL nmos 1264 208 R0 SYMATTR InstName M1 SYMATTR Value nmos1 L=10u W=10u SYMBOL voltage 800 336 R0 WINDOW 123 24 128 Left 2 SYMATTR InstName Vin SYMATTR Value 0V SYMATTR Value2 AC 1V 0degree SYMBOL res 1328 128 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName RD SYMATTR Value 10k SYMBOL voltage 560 240 R0 SYMATTR InstName Vps1 SYMATTR Value 15V SYMBOL res 1120 176 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName RG SYMATTR Value 10Meg SYMBOL cap 976 272 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 1 SYMBOL cap 1504 144 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 1 SYMBOL res 1680 192 R0 SYMATTR InstName RL SYMATTR Value 10k TEXT 840 576 Left 2 !.model nmos1 nmos (kp=0.25m Vto=+1.5V lambda=0.02) TEXT 1104 624 Left 2 ;.OP TEXT 1024 672 Left 2 !.AC DEC 10 1Hz 100kHz