Version 4
SHEET 1 880 680
WIRE -48 0 -48 -48
WIRE -192 64 -400 64
WIRE -144 64 -192 64
WIRE -512 96 -512 48
WIRE -400 96 -400 64
WIRE 128 96 48 96
WIRE 256 96 128 96
WIRE -144 128 -288 128
WIRE 128 128 128 96
WIRE 256 128 256 96
WIRE -288 160 -288 128
WIRE -512 192 -512 176
WIRE -400 192 -400 176
WIRE -192 192 -288 192
WIRE -144 192 -192 192
WIRE 128 240 128 208
WIRE 256 240 256 192
WIRE -288 304 -288 192
WIRE -48 336 -48 304
WIRE -288 448 -288 384
FLAG 128 240 0
FLAG 256 240 0
FLAG -48 336 0
FLAG -288 448 0
FLAG -288 160 0
FLAG -400 192 0
FLAG -48 -48 +V
FLAG -512 192 0
FLAG -512 48 +V
FLAG 128 96 D
FLAG -192 64 S2
FLAG -192 192 IN
SYMBOL voltage -288 288 R0
WINDOW 3 24 102 Left 2
SYMATTR Value PULSE(0 3 25u 1n 1n 20u)
SYMATTR InstName V1
SYMBOL res 112 112 R0
SYMATTR InstName R1
SYMATTR Value 301
SYMBOL cap 240 128 R0
SYMATTR InstName C1
SYMATTR Value 36p
SYMBOL voltage -400 80 R0
SYMATTR InstName V2
SYMATTR Value 3
SYMBOL voltage -512 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL ADG719 -48 144 R0
SYMATTR InstName U2
TEXT 136 328 Left 2 !.tran 75u