Version 4
SHEET 1 1252 680
WIRE 688 -32 560 -32
WIRE 560 16 560 -32
WIRE 592 16 560 16
WIRE -32 32 -144 32
WIRE 80 32 48 32
WIRE 208 32 80 32
WIRE 688 32 688 -32
WIRE 688 32 656 32
WIRE 736 32 688 32
WIRE 352 48 272 48
WIRE 400 48 352 48
WIRE 528 48 480 48
WIRE 592 48 528 48
WIRE -144 64 -144 32
WIRE 80 64 80 32
WIRE 208 64 176 64
WIRE 528 80 528 48
WIRE 176 160 176 64
WIRE 224 160 176 160
WIRE 352 160 352 48
WIRE 352 160 304 160
WIRE -144 176 -144 144
WIRE 80 176 80 144
WIRE 528 176 528 144
WIRE 688 240 688 32
WIRE 688 240 656 240
WIRE 176 256 176 160
WIRE 224 256 176 256
WIRE 528 256 304 256
WIRE 592 256 528 256
WIRE 688 272 656 272
WIRE 528 304 528 256
WIRE -144 352 -144 336
WIRE 528 416 528 384
WIRE 688 416 688 272
WIRE 688 416 528 416
WIRE -144 448 -144 432
WIRE 528 448 528 416
WIRE 528 560 528 528
FLAG 80 176 0
FLAG 528 560 0
FLAG 528 176 0
FLAG -144 176 0
FLAG 736 32 out
FLAG -144 32 in
FLAG -144 448 0
DATAFLAG 688 -32 "round($*10k)/10k"
DATAFLAG 352 48 "round($*10k)/10k"
DATAFLAG 128 32 "round($*10k)/10k"
DATAFLAG -64 32 "round($*10k)/10k"
DATAFLAG 400 256 "round($*10k)/10k"
SYMBOL res 64 48 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 64 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 2k
SYMBOL res 320 144 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 3k
SYMBOL res 320 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 4k
SYMBOL res 512 288 R0
SYMATTR InstName R5
SYMATTR Value 5k
SYMBOL res 512 432 R0
SYMATTR InstName R6
SYMATTR Value 6k
SYMBOL res 496 32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 7k
SYMBOL cap 512 80 R0
SYMATTR InstName C1
SYMATTR Value 1u
SYMBOL Opamps\\opamp 240 112 M180
SYMATTR InstName U2
SYMBOL Opamps\\opamp 624 -32 R0
SYMATTR InstName U1
SYMBOL Opamps\\opamp 624 320 R180
SYMATTR InstName U3
SYMBOL voltage -144 48 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 0
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMATTR Value 1
SYMBOL bv -144 336 R0
SYMATTR InstName B1
SYMATTR Value V=sin(1)
TEXT -144 -120 Left 2 !.op
TEXT -144 -88 Left 2 !.ac dec 100 1 10k
TEXT -144 -152 Left 2 !.lib opamp.sub
TEXT -96 384 Left 2 ;Nonlinear device
TEXT -152 -272 Left 2 ;Uout/Uin = (R1/(R1+R2))*(1+R3/R4) / (1+(1+R5/R6)*(R3/R4) +j*w*R7*C1) \nDC: Uout/Uin =0.24561 \n-3dB: fg=54Hz