Version 4
SHEET 1 880 680
WIRE -368 400 -368 288
WIRE -368 496 -368 480
WIRE -336 288 -368 288
WIRE -224 288 -272 288
WIRE -192 256 -192 240
WIRE -160 240 -192 240
WIRE -160 288 -160 240
WIRE -112 96 -112 80
WIRE -112 192 -112 160
WIRE -112 240 -160 240
WIRE -112 256 -112 240
WIRE -112 368 -112 336
WIRE -112 384 -112 368
WIRE -112 496 -368 496
WIRE -112 496 -112 448
WIRE -112 512 -112 496
WIRE -16 80 -112 80
WIRE -16 112 -16 80
WIRE -16 272 -16 192
WIRE -16 384 -16 272
WIRE -16 496 -112 496
WIRE -16 496 -16 464
WIRE 48 240 -112 240
WIRE 48 272 -16 272
WIRE 80 80 -16 80
WIRE 80 224 80 80
WIRE 80 496 -16 496
WIRE 80 496 80 288
WIRE 128 144 128 128
WIRE 128 256 112 256
WIRE 128 256 128 224
WIRE 128 272 128 256
WIRE 128 368 -112 368
WIRE 128 368 128 352
WIRE 192 128 128 128
WIRE 192 336 192 128
WIRE 192 496 80 496
WIRE 192 496 192 400
WIRE 256 128 192 128
WIRE 256 144 256 128
WIRE 256 304 256 224
WIRE 256 400 256 304
WIRE 256 496 192 496
WIRE 256 496 256 464
WIRE 272 304 256 304
WIRE 368 80 80 80
WIRE 368 96 368 80
WIRE 368 496 256 496
WIRE 368 496 368 480
WIRE 416 80 368 80
WIRE 416 336 416 80
WIRE 416 496 368 496
WIRE 416 496 416 416
FLAG -112 192 0
FLAG -112 512 0
FLAG 368 480 Vss
IOPIN 368 480 Out
FLAG 368 96 Vcc
IOPIN 368 96 Out
FLAG 272 304 Mod_in
IOPIN 272 304 Out
SYMBOL Robertugo\\opamp5 80 192 R0
WINDOW 0 -26 64 Left 0
WINDOW 38 -82 112 Left 0
SYMATTR InstName U1
SYMATTR SpiceModel U741
SYMBOL res -32 96 R0
SYMATTR InstName R1
SYMATTR Value 27K
SYMBOL res -32 368 R0
SYMATTR InstName R2
SYMATTR Value 27K
SYMBOL res -128 240 R0
SYMATTR InstName R3
SYMATTR Value 1e6
SYMBOL cap -128 96 R0
SYMATTR InstName C1
SYMATTR Value .27µ
SYMBOL polcap -272 272 R90
WINDOW 0 16 70 VBottom 0
WINDOW 3 16 69 VTop 0
SYMATTR InstName C2
SYMATTR Value 4.7µ
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=63 Irms=170m Rser=1 MTBF=5000 Lser=0 mfg="Nichicon" pn="UPG1J4R7MPH" type="Al electrolytic" ppPkg=1
SYMBOL Robertugo\\Pote -128 272 R90
WINDOW 0 2 92 VRight 0
WINDOW 3 54 28 VRight 0
WINDOW 123 -49 69 VCenter 0
SYMATTR InstName U2
SYMATTR Value Rt=47K
SYMATTR Value2 Set=0.5
SYMBOL cap -128 384 R0
SYMATTR InstName C3
SYMATTR Value 100p
SYMBOL res 144 368 R180
WINDOW 0 -36 75 Left 0
WINDOW 3 -35 27 Left 0
SYMATTR InstName R4
SYMATTR Value 1e6
SYMBOL voltage 416 320 R0
WINDOW 0 -61 57 Left 0
WINDOW 3 -12 58 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL res 112 128 R0
WINDOW 0 35 46 Left 0
WINDOW 3 28 82 Left 0
SYMATTR InstName R6
SYMATTR Value 15K
SYMBOL cap 176 336 R0
SYMATTR InstName C4
SYMATTR Value 10n
SYMBOL res 240 128 R0
WINDOW 0 39 48 Left 0
WINDOW 3 35 79 Left 0
SYMATTR InstName R7
SYMATTR Value 270K
SYMBOL cap 240 400 R0
SYMATTR InstName C5
SYMATTR Value 10p
SYMBOL voltage -368 384 R0
WINDOW 0 -30 57 Left 0
WINDOW 3 28 91 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vaud
SYMATTR Value SINE(0 10m 10k)
TEXT -354 86 Left 0 !.tran 2m