Version 4 SHEET 1 1036 680 WIRE -528 112 -528 48 WIRE -528 336 -528 192 WIRE -528 432 -528 336 WIRE -528 608 -528 512 WIRE -416 336 -528 336 WIRE -416 592 -416 336 WIRE -384 48 -528 48 WIRE -384 432 -384 48 WIRE -368 480 -368 464 WIRE -368 592 -416 592 WIRE -368 592 -368 560 WIRE -352 464 -368 464 WIRE -320 192 -320 160 WIRE -320 336 -416 336 WIRE -320 336 -320 272 WIRE -288 432 -384 432 WIRE -288 592 -368 592 WIRE -288 592 -288 496 WIRE -256 160 -320 160 WIRE -256 240 -256 160 WIRE -256 400 -256 320 WIRE -192 560 -192 528 WIRE -176 208 -176 192 WIRE -176 336 -320 336 WIRE -176 336 -176 288 WIRE -144 272 -144 224 WIRE -144 432 -224 432 WIRE -144 432 -144 272 WIRE -144 528 -192 528 WIRE -144 528 -144 432 WIRE -144 608 -528 608 WIRE -144 608 -144 528 WIRE -112 160 -256 160 WIRE -112 592 -112 160 WIRE -96 160 -112 160 WIRE -96 192 -176 192 WIRE -96 224 -144 224 WIRE -48 432 -144 432 WIRE -48 592 -112 592 WIRE -16 336 -32 336 WIRE -16 400 -16 336 WIRE 0 336 -16 336 WIRE 112 224 96 224 WIRE 112 336 80 336 WIRE 112 336 112 224 WIRE 112 592 32 592 WIRE 112 592 112 576 WIRE 144 48 -384 48 WIRE 144 160 96 160 WIRE 144 160 144 48 WIRE 144 432 16 432 WIRE 144 432 144 160 WIRE 176 192 96 192 WIRE 176 192 176 128 WIRE 176 496 -288 496 WIRE 176 496 176 224 WIRE 224 192 176 192 WIRE 224 224 176 224 WIRE 224 496 224 336 WIRE 256 48 144 48 WIRE 256 176 256 48 WIRE 256 272 -144 272 WIRE 256 272 256 240 WIRE 304 128 240 128 WIRE 304 208 288 208 WIRE 304 208 304 128 WIRE 304 336 224 336 WIRE 304 336 304 208 WIRE 304 464 304 336 WIRE 304 592 112 592 WIRE 304 592 304 576 FLAG 224 496 Tri IOPIN 224 496 Out FLAG 112 576 Pul IOPIN 112 576 Out FLAG -32 336 Vc IOPIN -32 336 In FLAG -352 464 Vc IOPIN -352 464 Out FLAG -192 560 0 SYMBOL 3080 0 176 R0 WINDOW 38 -53 -45 Left 0 WINDOW 0 -26 16 Left 0 SYMATTR SpiceModel LM3080/NS SYMATTR InstName U1 SYMBOL res -336 176 R0 WINDOW 0 -33 28 Left 0 WINDOW 3 -39 64 Left 0 SYMATTR InstName R1 SYMATTR Value 3K3 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res -272 224 R0 WINDOW 0 -33 37 Left 0 WINDOW 3 -37 66 Left 0 SYMATTR InstName R3 SYMATTR Value 1E7 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL Pote -192 416 R90 WINDOW 0 48 -1 VRight 0 WINDOW 123 1 -4 VCenter 0 WINDOW 3 0 115 VCenter 0 SYMATTR InstName Simet SYMATTR Value Rt=1e5 SYMBOL res -192 192 R0 WINDOW 0 -25 30 Left 0 WINDOW 3 -35 64 Left 0 SYMATTR InstName R4 SYMATTR Value 3K3 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL Pote 48 416 R90 WINDOW 0 49 38 VRight 0 WINDOW 123 1 119 VCenter 0 WINDOW 3 0 -14 VCenter 0 SYMATTR InstName Freq SYMATTR Value Rt=1e7 SYMBOL cap 240 112 R90 WINDOW 0 -32 34 VBottom 0 WINDOW 3 -31 32 VTop 0 SYMATTR InstName C1 SYMATTR Value 100p SYMBOL voltage -528 96 R0 WINDOW 0 -32 8 Left 0 WINDOW 3 -16 57 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 47 17 VRight 0 SYMATTR InstName V1 SYMATTR Value 7.5 SYMATTR SpiceLine Rser=1 Cpar=100n SYMBOL voltage -528 416 R0 WINDOW 0 -32 8 Left 0 WINDOW 3 -16 57 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 48 -56 VRight 0 SYMATTR InstName V2 SYMATTR Value 7.5 SYMATTR SpiceLine Rser=1 Cpar=100n SYMBOL res 48 576 R90 WINDOW 0 16 112 VBottom 0 WINDOW 3 -12 -19 VTop 0 SYMATTR InstName R7 SYMATTR Value 270K SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 96 320 R90 WINDOW 0 -10 83 VBottom 0 WINDOW 3 -37 34 VTop 0 SYMATTR InstName R8 SYMATTR Value 4K7 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL voltage -368 464 R0 WINDOW 0 4 106 Left 0 WINDOW 3 -16 57 Invisible 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V3 SYMATTR Value PWL(0 -6.1 200u -6.1 201u -6 300u -6 301u -5 340u -5 341u -4) SYMBOL Dig_Add\\CD4xxx\\CD40106B 352 512 R90 WINDOW 3 -77 83 Left 0 WINDOW 0 47 81 Left 0 SYMATTR InstName U3 SYMATTR SpiceLine VDD=15 SPEED=1.0 TRIPDT=5e-9 SYMBOL OPAMP5 256 144 R0 WINDOW 0 -27 64 Left 0 WINDOW 38 -74 17 Left 0 SYMATTR InstName U2 SYMATTR SpiceModel TL062 TEXT -370 70 Left 0 !.tran 0 370u 20u startup TEXT -88 72 Left 0 !.option noopiter