Version 4
SHEET 1 2144 680
WIRE -192 -480 -320 -480
WIRE 80 -480 -192 -480
WIRE 224 -480 160 -480
WIRE 288 -480 224 -480
WIRE 416 -480 368 -480
WIRE 656 -480 592 -480
WIRE 752 -480 736 -480
WIRE 800 -480 752 -480
WIRE -16 -432 -160 -432
WIRE -80 -368 -80 -384
WIRE -160 -352 -160 -432
WIRE -112 -352 -160 -352
WIRE 320 -352 320 -384
WIRE -16 -336 -16 -432
WIRE -16 -336 -48 -336
WIRE 32 -336 -16 -336
WIRE 64 -336 32 -336
WIRE 224 -336 224 -480
WIRE 224 -336 144 -336
WIRE 288 -336 224 -336
WIRE 656 -336 656 -368
WIRE -320 -320 -320 -480
WIRE -112 -320 -160 -320
WIRE 416 -320 416 -480
WIRE 416 -320 352 -320
WIRE 464 -320 416 -320
WIRE 592 -320 592 -480
WIRE 592 -320 544 -320
WIRE 624 -320 592 -320
WIRE 288 -304 224 -304
WIRE 752 -304 752 -480
WIRE 752 -304 688 -304
WIRE 624 -288 592 -288
WIRE -80 -272 -80 -304
WIRE 320 -256 320 -288
WIRE 656 -240 656 -272
WIRE -320 -160 -320 -240
WIRE 224 -160 224 -304
WIRE 224 -160 -320 -160
WIRE 592 -160 592 -288
WIRE 592 -160 224 -160
WIRE -320 -144 -320 -160
WIRE -176 -80 -320 -80
WIRE 224 -80 144 -80
WIRE 144 -32 144 -80
WIRE -176 -16 -176 -80
WIRE 144 80 144 48
WIRE 144 80 64 80
WIRE -176 96 -176 64
WIRE 64 112 64 80
WIRE -320 128 -320 -80
WIRE 144 128 144 80
WIRE -320 176 -320 128
WIRE -176 224 -176 176
WIRE -112 224 -176 224
WIRE -176 240 -176 224
WIRE 144 272 144 208
WIRE 224 272 144 272
WIRE -320 432 -320 256
WIRE -176 432 -176 320
WIRE -176 432 -320 432
WIRE -320 448 -320 432
FLAG -320 448 0
FLAG -320 128 Vin
FLAG 224 -80 Ub+
FLAG 224 272 Ub-
FLAG -112 224 Ub10
FLAG 64 112 0
FLAG -320 -144 0
FLAG 656 -240 Ub-
FLAG 320 -256 Ub-
FLAG 656 -368 Ub+
FLAG 320 -384 Ub+
FLAG -80 -272 Ub-
FLAG -80 -384 Ub+
FLAG -160 -320 Ub10
FLAG 800 -480 Uout
FLAG -192 -480 UinUN
FLAG 32 -336 Uadd
SYMBOL voltage -320 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName VCC
SYMATTR Value 12
SYMBOL res -192 -32 R0
SYMATTR InstName R9
SYMATTR Value 100k
SYMBOL res -192 224 R0
SYMATTR InstName R10
SYMATTR Value 1000k
SYMBOL res -192 80 R0
SYMATTR InstName R11
SYMATTR Value 100k
SYMBOL voltage 144 -48 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName VCC1
SYMATTR Value 12
SYMBOL voltage 144 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName VCC2
SYMATTR Value 12
SYMBOL res 176 -496 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R14
SYMATTR Value 150k
SYMBOL res 160 -352 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R15
SYMATTR Value 150k
SYMBOL res 384 -496 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R16
SYMATTR Value 24k
SYMBOL res 560 -336 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R17
SYMATTR Value 150k
SYMBOL res 752 -496 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R18
SYMATTR Value 150k
SYMBOL voltage -320 -336 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 9 14 Left 2
WINDOW 3 20 101 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 10 50)
SYMBOL Opamps\\opamp2 -80 -400 R0
SYMATTR InstName U1
SYMATTR Value TL071
SYMBOL Opamps\\opamp2 320 -384 R0
SYMATTR InstName U3
SYMATTR Value TL071
SYMBOL Opamps\\opamp2 656 -368 R0
SYMATTR InstName U4
SYMATTR Value TL071
TEXT -80 360 Left 2 !.tran 0 0.2 0 0.005 startup uic
TEXT -80 400 Left 2 !.include TL071.301