Version 4
SHEET 1 880 756
WIRE -832 -256 -848 -256
WIRE -816 -256 -832 -256
WIRE -672 -256 -736 -256
WIRE -240 -256 -592 -256
WIRE -400 -208 -560 -208
WIRE -240 -208 -240 -256
WIRE -240 -208 -320 -208
WIRE -736 -176 -736 -256
WIRE -832 -160 -832 -256
WIRE -832 -160 -880 -160
WIRE -272 -112 -368 -112
WIRE -368 -64 -368 -112
WIRE -352 -64 -368 -64
WIRE -880 -48 -880 -160
WIRE -848 -48 -880 -48
WIRE -272 -48 -272 -112
WIRE -272 -48 -288 -48
WIRE -240 -48 -240 -208
WIRE -240 -48 -272 -48
WIRE -224 -48 -240 -48
WIRE -736 -32 -736 -96
WIRE -736 -32 -784 -32
WIRE -688 -32 -736 -32
WIRE -560 -32 -560 -208
WIRE -560 -32 -608 -32
WIRE -544 -32 -560 -32
WIRE -416 -32 -464 -32
WIRE -352 -32 -416 -32
WIRE -848 -16 -912 -16
WIRE -416 -16 -416 -32
WIRE -416 64 -416 48
WIRE -288 144 -288 128
WIRE -208 144 -208 128
WIRE -896 240 -928 240
WIRE -480 240 -512 240
WIRE -288 240 -288 224
WIRE -208 240 -208 224
WIRE -928 272 -928 240
WIRE -512 272 -512 240
WIRE -928 368 -928 352
WIRE -512 368 -512 352
FLAG -512 368 0
FLAG -480 240 IN
IOPIN -480 240 Out
FLAG -912 -16 IN
IOPIN -912 -16 In
FLAG -224 -48 OUT
IOPIN -224 -48 Out
FLAG -928 368 0
FLAG -896 240 CLK
IOPIN -896 240 Out
FLAG -416 64 0
FLAG -288 240 0
FLAG -288 128 V+
FLAG -208 240 0
FLAG -208 128 V-
FLAG -816 -64 V+
FLAG -320 -80 V+
FLAG -816 0 V-
FLAG -320 -16 V-
FLAG -672 16 CLK
IOPIN -672 16 In
FLAG -624 16 0
FLAG -480 16 CLK
IOPIN -480 16 In
FLAG -528 16 0
FLAG -928 -256 0
FLAG -656 -304 CLK
IOPIN -656 -304 In
FLAG -608 -304 0
FLAG -784 -160 0
FLAG -784 -112 CLK
IOPIN -784 -112 In
SYMBOL cap -432 48 M180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C1
SYMATTR Value 100p
SYMBOL voltage -512 256 M0
WINDOW 0 -63 64 Left 2
WINDOW 3 -282 101 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 1 500 0 0 0 0)
SYMBOL voltage -928 256 M0
WINDOW 0 -63 55 Left 2
WINDOW 3 -366 96 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 0 1u 1u 199u 400u)
SYMBOL voltage -288 128 R0
SYMATTR InstName V4
SYMATTR Value 15
SYMBOL voltage -208 128 R0
SYMATTR InstName V5
SYMATTR Value -15
SYMBOL sw -592 -32 M270
WINDOW 3 -112 24 Left 2
SYMATTR InstName S1
SYMBOL res -304 -224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res -832 -240 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 90k
SYMBOL sw -560 -32 R270
SYMATTR InstName S2
SYMBOL res -832 -272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL sw -576 -256 R90
WINDOW 0 -103 -1 Left 2
WINDOW 3 -111 33 Left 2
SYMATTR InstName S3
SYMBOL sw -736 -192 R0
WINDOW 3 46 58 Left 2
SYMATTR Value SWN
SYMATTR InstName S4
SYMBOL Opamps\\LT1055 -816 -96 R0
SYMATTR InstName U2
SYMBOL Opamps\\LT1055 -320 -112 R0
SYMATTR InstName U1
TEXT -952 128 Left 2 !.tran 2m
TEXT -952 160 Left 2 !.model SW SW(Ron=50 Roff=10meg Vt=2.5 Vh=-.4)
TEXT -960 192 Left 2 !.model SWN SW(Roff=50 Ron=10meg Vt=2.5 Vh=-.4)