Version 4
SHEET 1 1256 776
WIRE 608 144 576 144
WIRE 800 144 688 144
WIRE 832 144 800 144
WIRE 944 144 912 144
WIRE -272 160 -272 112
WIRE -176 160 -176 112
WIRE -80 160 -80 112
WIRE 400 160 400 144
WIRE 128 176 96 176
WIRE 208 176 192 176
WIRE 368 176 208 176
WIRE 1088 176 1088 160
WIRE 512 192 432 192
WIRE 576 192 576 144
WIRE 576 192 512 192
WIRE 944 192 944 144
WIRE 1056 192 944 192
WIRE 208 208 208 176
WIRE 368 208 336 208
WIRE 1184 208 1120 208
WIRE 1056 224 1024 224
WIRE 400 240 400 224
WIRE 576 240 576 192
WIRE 608 240 576 240
WIRE 720 240 672 240
WIRE 848 240 720 240
WIRE 944 240 944 192
WIRE 944 240 912 240
WIRE 1088 256 1088 240
WIRE -272 272 -272 240
WIRE -176 272 -176 240
WIRE -80 272 -80 240
WIRE 720 320 720 240
WIRE 800 320 800 144
WIRE 1024 320 1024 224
WIRE 1184 320 1184 208
WIRE 1184 320 1024 320
WIRE 336 336 336 208
WIRE 416 336 336 336
WIRE 512 336 512 192
WIRE 512 336 496 336
WIRE 336 352 336 336
WIRE 1072 368 912 368
WIRE 1184 400 1184 320
WIRE 208 448 208 288
WIRE 336 448 336 432
WIRE 1008 448 1008 432
WIRE 1072 464 1072 368
WIRE 1072 464 1040 464
WIRE 720 480 720 400
WIRE 800 480 800 384
WIRE 800 480 720 480
WIRE 912 480 912 368
WIRE 912 480 800 480
WIRE 976 480 912 480
WIRE 1184 496 1184 480
WIRE 1184 496 1040 496
WIRE 1184 512 1184 496
WIRE 1008 528 1008 512
WIRE 1184 624 1184 592
WIRE 0 0 0 0
FLAG 400 240 +UB
FLAG -176 272 0
FLAG -176 112 -UB
FLAG -80 272 0
FLAG -80 112 Usig
FLAG 96 176 Usig
FLAG -272 272 0
FLAG -272 112 +UB
FLAG 400 144 -UB
FLAG 336 448 0
FLAG 208 448 0
FLAG 1184 624 0
FLAG 1088 256 +UB
FLAG 1088 160 -UB
FLAG 1008 432 +UB
FLAG 1008 528 -UB
SYMBOL opamp2 400 256 M180
SYMATTR InstName U1
SYMATTR Value OPA330
SYMBOL voltage -176 144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value -5V
SYMBOL voltage -80 144 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 0
SYMATTR Value2 AC 100m
SYMATTR InstName V3
SYMATTR Value SINE(0 100m 50)
SYMBOL voltage -272 144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value +5V
SYMBOL cap 192 160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 47µ
SYMBOL res 192 192 R0
SYMATTR InstName R1
SYMATTR Value 6.8k
SYMBOL res 320 336 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res 512 320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL res 704 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 68k
SYMBOL res 928 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 68k
SYMBOL res 736 416 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R6
SYMATTR Value 34k
SYMBOL cap 672 224 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 47n
SYMBOL cap 912 224 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 47n
SYMBOL cap 816 384 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C4
SYMATTR Value 94n
SYMBOL opamp2 1088 272 M180
SYMATTR InstName U2
SYMATTR Value OPA330
SYMBOL res 1168 384 R0
SYMATTR InstName R7
SYMATTR Value 1k
SYMBOL res 1168 496 R0
SYMATTR InstName R8
SYMATTR Value 9k
SYMBOL opamp2 1008 416 M0
SYMATTR InstName U3
SYMATTR Value OPA330
TEXT -184 384 Left 2 !.include OPA330.LIB
TEXT -184 416 Left 2 !.tran 1
TEXT 136 88 Left 2 ;fg = 0,5 Hz
TEXT 328 488 Left 2 ;V = 1 + R3/R2
TEXT -184 448 Left 2 ;.ac dec 1000 100m 1k