Version 4
SHEET 1 1236 688
WIRE 272 -256 -576 -256
WIRE 32 -160 -32 -160
WIRE 352 -160 112 -160
WIRE 480 -160 432 -160
WIRE -576 -128 -576 -256
WIRE -240 -64 -336 -64
WIRE -32 -64 -32 -160
WIRE -32 -64 -176 -64
WIRE 64 -64 -32 -64
WIRE 224 -64 128 -64
WIRE 272 -64 272 -256
WIRE 336 -64 272 -64
WIRE -576 -32 -576 -48
WIRE -480 -32 -576 -32
WIRE 400 -16 400 -64
WIRE -480 0 -480 -32
WIRE -576 32 -576 -32
WIRE -336 48 -336 -64
WIRE -240 48 -336 48
WIRE -32 48 -32 -64
WIRE -32 48 -176 48
WIRE 64 48 -32 48
WIRE 224 48 224 -64
WIRE 224 48 128 48
WIRE 272 128 272 -64
WIRE 240 144 192 144
WIRE 400 160 304 160
WIRE 480 160 480 -160
WIRE 480 160 400 160
WIRE 528 160 480 160
WIRE 640 160 592 160
WIRE 816 160 720 160
WIRE -336 176 -336 48
WIRE -336 176 -432 176
WIRE -304 176 -336 176
WIRE -160 176 -224 176
WIRE -64 176 -80 176
WIRE -32 176 -64 176
WIRE 80 176 48 176
WIRE 224 176 224 48
WIRE 224 176 160 176
WIRE 240 176 224 176
WIRE -432 208 -432 176
WIRE -336 224 -336 176
WIRE 192 256 192 144
WIRE 256 256 192 256
WIRE 400 256 400 160
WIRE 400 256 336 256
WIRE 720 272 720 160
WIRE -96 288 -160 288
WIRE -64 288 -64 176
WIRE -64 288 -96 288
WIRE -32 288 -64 288
WIRE 32 288 -32 288
WIRE 192 288 192 256
WIRE -160 304 -160 288
WIRE -96 304 -96 288
WIRE -32 304 -32 288
WIRE 32 304 32 288
WIRE -432 400 -432 288
WIRE -336 400 -336 304
WIRE -336 400 -432 400
WIRE -160 400 -160 368
WIRE -160 400 -336 400
WIRE -96 400 -96 368
WIRE -96 400 -160 400
WIRE -32 400 -32 368
WIRE -32 400 -96 400
WIRE 32 400 32 368
WIRE 32 400 -32 400
WIRE 192 400 192 368
WIRE 192 400 32 400
WIRE 720 400 720 336
WIRE 720 400 192 400
WIRE 816 400 816 336
WIRE 816 400 720 400
WIRE 192 416 192 400
WIRE -576 480 -576 112
WIRE 272 480 272 192
WIRE 272 480 -576 480
WIRE 272 512 272 480
WIRE 272 608 272 576
FLAG -480 0 0
FLAG 192 416 0
FLAG 272 608 0
FLAG 400 -16 0
SYMBOL res -208 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 147K
SYMATTR SpiceLine tol=1
SYMBOL res 64 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 2.5K
SYMBOL res 176 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 147K
SYMATTR SpiceLine tol=1
SYMBOL res -352 208 R0
SYMATTR InstName R4
SYMATTR Value 100k
SYMBOL res 176 272 R0
SYMATTR InstName R5
SYMATTR Value 100K
SYMATTR SpiceLine tol=1
SYMBOL res 352 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 22K
SYMATTR SpiceLine tol=1
SYMBOL res 128 -176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 74K
SYMBOL res 448 -176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 1K
SYMBOL voltage -576 -144 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 44 Left 2
SYMATTR SpiceLine Rser=0.1
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage -576 16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR SpiceLine Rser=0.1
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL cap -176 304 R0
SYMATTR InstName C1
SYMATTR Value 4.7µF
SYMBOL cap -112 304 R0
SYMATTR InstName C2
SYMATTR Value 1nF
SYMATTR SpiceLine V=25 Irms=0 Rser=0.007 Lser=0
SYMBOL cap -48 304 R0
SYMATTR InstName C3
SYMATTR Value 1nF
SYMATTR SpiceLine V=16 Irms=0 Rser=0.007 Lser=0
SYMBOL cap -176 32 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 1nF
SYMBOL cap -176 -80 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 100pF
SYMBOL cap 128 -80 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 100pF
SYMBOL cap 128 32 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value 1nF
SYMBOL voltage -432 192 R0
WINDOW 3 -171 359 Invisible 2
WINDOW 123 -171 387 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value SINE(0 5V 1000)
SYMATTR Value2 AC 5
SYMATTR InstName V3
SYMBOL res -64 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 2.5K
SYMBOL cap 592 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C9
SYMATTR Value 1µF
SYMBOL cap 736 336 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C10
SYMATTR Value 4.7nF
SYMBOL res 736 144 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 1K
SYMBOL Opamps\\opamp2 272 96 R0
WINDOW 3 16 60 Left 2
SYMATTR Value TL084
SYMATTR InstName U1
SYMBOL res 800 240 R0
SYMATTR InstName R11
SYMATTR Value 1K
SYMBOL cap 400 -80 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C11
SYMATTR Value 100nF
SYMBOL cap 256 512 R0
SYMATTR InstName C12
SYMATTR Value 100nF
SYMBOL cap 16 304 R0
SYMATTR InstName C4
SYMATTR Value 80pF
TEXT -608 488 Left 2 !.tran 0 0.3 0.1
TEXT -608 520 Left 2 !.inc TL084.mod
TEXT -610 632 Left 2 !;tran 0.3
TEXT -612 652 Left 2 !;tran 0.3
TEXT -614 672 Left 2 !;ac oct 10 500 2K