Version 4 SHEET 1 1768 1352 WIRE -400 304 -400 48 WIRE -400 432 -400 304 WIRE -368 304 -400 304 WIRE -368 320 -368 304 WIRE -336 192 -336 160 WIRE -336 336 -336 272 WIRE -288 432 -400 432 WIRE -256 160 -336 160 WIRE -256 240 -256 160 WIRE -256 400 -256 320 WIRE -176 208 -176 192 WIRE -176 336 -336 336 WIRE -176 336 -176 288 WIRE -144 288 -144 224 WIRE -144 432 -224 432 WIRE -144 432 -144 288 WIRE -144 592 -160 592 WIRE -144 592 -144 432 WIRE -128 336 -176 336 WIRE -128 480 -128 336 WIRE -112 192 -176 192 WIRE -112 592 -112 192 WIRE -96 160 -256 160 WIRE -96 192 -112 192 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 48 480 -128 480 WIRE 48 512 48 480 WIRE 112 224 96 224 WIRE 112 336 80 336 WIRE 112 336 112 224 WIRE 144 48 -400 48 WIRE 144 160 96 160 WIRE 144 160 144 48 WIRE 144 432 16 432 WIRE 144 432 144 160 WIRE 144 592 32 592 WIRE 144 592 144 560 WIRE 224 192 96 192 WIRE 224 208 224 192 WIRE 224 480 48 480 WIRE 224 480 224 272 WIRE 272 160 272 112 WIRE 320 160 272 160 WIRE 320 192 224 192 WIRE 352 48 144 48 WIRE 352 144 352 48 WIRE 352 288 -144 288 WIRE 352 288 352 208 WIRE 400 112 272 112 WIRE 400 176 384 176 WIRE 400 176 400 112 WIRE 400 352 400 176 WIRE 400 592 144 592 WIRE 400 592 400 464 WIRE 416 112 400 112 WIRE 576 128 576 80 WIRE 576 304 576 208 WIRE 576 464 576 304 WIRE 576 576 576 544 WIRE 592 80 576 80 WIRE 608 576 576 576 WIRE 656 176 656 160 WIRE 656 304 576 304 WIRE 656 304 656 256 WIRE 656 336 656 304 FLAG 144 560 Pul IOPIN 144 560 Out FLAG -32 336 Vc IOPIN -32 336 In FLAG 656 160 Vc IOPIN 656 160 Out FLAG 48 512 0 FLAG -160 592 V- IOPIN -160 592 In FLAG 608 576 V- IOPIN 608 576 Out FLAG 656 336 0 FLAG 592 80 V+ IOPIN 592 80 Out FLAG -368 320 V+ IOPIN -368 320 In FLAG 416 112 Tri IOPIN 416 112 Out SYMBOL 3080 0 176 R0 WINDOW 38 -53 -45 Left 0 WINDOW 0 -24 15 Left 0 SYMATTR InstName U1 SYMBOL res -352 176 R0 WINDOW 0 -35 31 Left 0 WINDOW 3 -35 65 Left 0 SYMATTR InstName R1 SYMATTR Value 3K3 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res -272 224 R0 WINDOW 0 -36 33 Left 0 WINDOW 3 -38 64 Left 0 SYMATTR InstName R3 SYMATTR Value 1E7 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL Pote -192 416 R90 WINDOW 0 54 19 VRight 0 WINDOW 123 4 129 VCenter 0 WINDOW 3 1 -5 VCenter 0 SYMATTR InstName Simetrķa SYMATTR Value Rt=1e5 SYMBOL res -192 192 R0 WINDOW 0 -23 32 Left 0 WINDOW 3 -35 66 Left 0 SYMATTR InstName R4 SYMATTR Value 3K3 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL Pote 48 416 R90 WINDOW 0 50 37 VRight 0 WINDOW 123 3 121 VCenter 0 WINDOW 3 2 0 VCenter 0 SYMATTR InstName Freq SYMATTR Value Rt=3k SYMBOL cap 240 272 R180 WINDOW 0 24 64 Left 0 WINDOW 3 24 8 Left 0 SYMATTR InstName C1 SYMATTR Value 120p SYMATTR SpiceLine Rpar=1g SYMBOL voltage 576 112 R0 WINDOW 0 12 7 Left 0 WINDOW 3 -16 57 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 -49 -11 VRight 0 SYMATTR InstName V1 SYMATTR Value 7.5 SYMATTR SpiceLine Rser=.2 Cpar=100n SYMBOL voltage 576 560 M180 WINDOW 0 18 112 Left 0 WINDOW 3 -16 57 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 -49 -27 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 220K SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 96 320 R90 WINDOW 0 16 112 VBottom 0 WINDOW 3 -10 8 VTop 0 SYMATTR InstName R8 SYMATTR Value 4K7 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL voltage 656 160 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 -3 30u -3 30.1u 0 40u 0 40.1u 3 50u 3 50.1u 6 60u 6 60.1u 7.5) SYMBOL Dig_Add\\CD4xxx\\CD40106B 448 400 R90 WINDOW 3 -70 83 Left 0 WINDOW 0 67 84 Left 0 SYMATTR InstName U3 SYMATTR SpiceLine VDD=15 SPEED=.4 TRIPDT=5e-9 SYMATTR SpiceModel V+ V- SYMBOL OPAMP5 352 112 R0 WINDOW 0 -27 63 Left 0 WINDOW 38 -76 19 Left 0 SYMATTR InstName U2 SYMATTR SpiceModel TL062 TEXT -394 70 Left 0 !.tran 0 70u 20u uic TEXT -392 104 Left 0 ;LM3080/NS R7=270k\nLM3080 R7=220k TEXT 272 328 Left 0 ;TL062 TEXT -384 536 Left 0 ;.options Gmin=1e-11