Version 4
SHEET 1 1268 680
WIRE -400 -384 -480 -384
WIRE -208 -384 -304 -384
WIRE 64 -336 -64 -336
WIRE 112 -336 112 -384
WIRE -480 -320 -480 -384
WIRE -304 -320 -304 -384
WIRE 208 -320 144 -320
WIRE 256 -320 208 -320
WIRE 64 -304 16 -304
WIRE 112 -256 112 -304
WIRE -64 -240 -64 -256
WIRE 16 -192 16 -304
WIRE 208 -192 208 -320
WIRE 208 -192 16 -192
WIRE -480 -176 -480 -240
WIRE -304 -176 -304 -240
WIRE -32 -80 -64 -80
WIRE 96 -80 48 -80
WIRE 208 -80 176 -80
WIRE 16 80 0 80
WIRE 64 80 64 32
WIRE 752 80 736 80
WIRE 800 80 800 32
WIRE 208 96 208 -80
WIRE 208 96 96 96
WIRE 224 96 208 96
WIRE 336 96 304 96
WIRE 416 96 336 96
WIRE 464 96 464 48
WIRE 912 96 832 96
WIRE 928 96 912 96
WIRE 1008 96 992 96
WIRE -64 112 -64 -80
WIRE 16 112 -64 112
WIRE 528 112 496 112
WIRE 544 112 528 112
WIRE 656 112 624 112
WIRE 752 112 656 112
WIRE 336 128 336 96
WIRE 416 128 384 128
WIRE 64 160 64 112
WIRE 800 160 800 112
WIRE 464 176 464 128
WIRE 336 208 336 192
WIRE 384 224 384 128
WIRE 528 224 528 112
WIRE 528 224 384 224
WIRE 656 240 656 112
WIRE 688 240 656 240
WIRE 800 240 768 240
WIRE 912 240 912 96
WIRE 912 240 880 240
WIRE 656 336 656 240
WIRE 752 336 656 336
WIRE 816 336 800 336
WIRE 912 336 912 240
WIRE 912 336 816 336
FLAG -128 112 Vin
IOPIN -128 112 In
FLAG 0 80 VG
IOPIN 0 80 In
FLAG 336 208 0
FLAG 736 80 VG
IOPIN 736 80 In
FLAG 1008 96 Vout
IOPIN 1008 96 Out
FLAG 112 -384 +V
FLAG 256 -320 VG
IOPIN 256 -320 Out
FLAG -64 -416 Vcc
IOPIN -64 -416 In
FLAG -64 -240 0
FLAG -480 -176 0
FLAG -400 -384 V+
FLAG -304 -176 0
FLAG -208 -384 V-
FLAG 112 -256 -V
FLAG 64 160 -V
FLAG 464 176 -V
FLAG 800 160 -V
FLAG 64 32 +V
FLAG 464 48 +V
FLAG 800 32 +V
SYMBOL AutoGenerated\\LM324singleAmp 16 48 M270
SYMATTR InstName U1
SYMBOL AutoGenerated\\LM324singleAmp 416 64 M270
SYMATTR InstName U2
SYMBOL AutoGenerated\\LM324singleAmp 752 48 M270
SYMATTR InstName U3
SYMBOL cap -64 96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 0,47µ
SYMBOL res 64 -96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1 M
SYMBOL res 192 -96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1 M
SYMBOL res 320 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value {R}
SYMBOL cap 320 128 R0
WINDOW 0 -21 9 Left 2
WINDOW 3 -35 55 Left 2
SYMATTR InstName C2
SYMATTR Value 22µ
SYMBOL res 640 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL res 784 224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res 896 224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL cap 816 320 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 22µ
SYMBOL cap 992 80 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 6µ8
SYMBOL AutoGenerated\\LM324singleAmp 64 -368 M270
SYMATTR InstName U4
SYMBOL res -80 -432 R0
WINDOW 0 38 51 Left 2
WINDOW 3 -60 54 Left 2
SYMATTR InstName R7
SYMATTR Value 100k
SYMBOL res -80 -352 R0
WINDOW 0 41 60 Left 2
WINDOW 3 -60 66 Left 2
SYMATTR InstName R8
SYMATTR Value 100k
SYMBOL voltage -480 -336 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -304 -336 R0
SYMATTR InstName V2
SYMATTR Value 0
TEXT 168 328 Left 2 !.step param 1 1M 1k
TEXT -464 328 Left 2 !.tran 0 100 0 0.1