Version 4
SHEET 1 1064 680
WIRE 144 -176 64 -176
WIRE 288 -176 208 -176
WIRE 64 -80 64 -176
WIRE 144 -80 64 -80
WIRE 288 -80 288 -176
WIRE 288 -80 208 -80
WIRE 64 16 64 -80
WIRE 128 16 64 16
WIRE 288 16 288 -80
WIRE 288 16 208 16
WIRE 352 16 288 16
WIRE -352 32 -480 32
WIRE -224 32 -224 -16
WIRE -224 32 -352 32
WIRE 64 48 64 16
WIRE -224 64 -224 32
WIRE 192 144 192 112
WIRE 64 160 64 128
WIRE 112 160 64 160
WIRE 160 160 112 160
WIRE 288 176 288 16
WIRE 288 176 224 176
WIRE 352 176 288 176
WIRE 480 176 416 176
WIRE 528 176 480 176
WIRE 640 176 592 176
WIRE 688 176 640 176
WIRE 800 176 752 176
WIRE -224 192 -224 144
WIRE -128 192 -224 192
WIRE -16 192 -128 192
WIRE 160 192 -16 192
WIRE 480 192 480 176
WIRE -480 208 -480 32
WIRE 640 208 640 176
WIRE 800 208 800 176
WIRE -224 224 -224 192
WIRE -352 240 -352 32
WIRE -128 240 -128 192
WIRE 192 240 192 208
WIRE 480 320 480 272
WIRE 640 320 640 288
WIRE -480 336 -480 288
WIRE -352 336 -352 304
WIRE -224 336 -224 304
WIRE -128 336 -128 304
WIRE 64 368 64 160
WIRE 800 368 800 288
WIRE 800 368 64 368
FLAG 192 112 V+
FLAG 480 320 0
FLAG 640 320 0
FLAG -224 336 0
FLAG 192 240 0
FLAG -224 -16 V+
FLAG -128 336 0
FLAG -352 336 0
FLAG -480 336 0
FLAG 352 16 out
IOPIN 352 16 Out
FLAG -16 192 ref
FLAG 112 160 in
SYMBOL Misc\\EuropeanResistor 464 176 R0
SYMATTR InstName R1
SYMATTR Value 13k
SYMBOL Misc\\EuropeanResistor 624 192 R0
SYMATTR InstName R2
SYMATTR Value 13k
SYMBOL Misc\\EuropeanResistor 784 192 R0
SYMATTR InstName R3
SYMATTR Value 13k
SYMBOL cap 352 192 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 0.1µ ic=1m
SYMBOL cap 528 192 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 0.1µ
SYMBOL cap 688 192 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3
SYMATTR Value 0.1µ
SYMBOL Misc\\EuropeanResistor 112 32 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 220k
SYMBOL diode 144 -64 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 208 -192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL Misc\\EuropeanResistor 48 144 M180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R4
SYMATTR Value 220k
SYMBOL Misc\\EuropeanResistor -240 48 R0
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor -240 208 R0
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL polcap -144 240 R0
SYMATTR InstName C4
SYMATTR Value 100µ IC=4.5
SYMBOL polcap -368 240 R0
SYMATTR InstName C5
SYMATTR Value 100µ
SYMBOL Misc\\battery -480 192 R0
SYMATTR InstName V1
SYMATTR Value 9
SYMBOL Opamps\\LT1012 192 112 R0
SYMATTR InstName U1
TEXT -488 -232 Left 2 !.tran 0 600m 0 10u
TEXT -488 -200 Left 2 !.options plotwinsize=0
TEXT 424 -192 Left 2 ;f0 = 1/sqrt(2*pi*sqrt(6)*R*C))\n \nf0 =50 Hz\nR=13kOhm, C=100nF\nVerstärkung>=29