Version 4
SHEET 1 1156 680
WIRE 224 -96 48 -96
WIRE 464 -96 288 -96
WIRE -96 -80 -96 -96
WIRE 800 -80 624 -80
WIRE 1040 -80 864 -80
WIRE 336 64 336 32
WIRE -304 80 -416 80
WIRE -96 80 -96 0
WIRE -96 80 -240 80
WIRE -64 80 -96 80
WIRE 48 80 48 -96
WIRE 48 80 16 80
WIRE 80 80 48 80
WIRE 208 80 160 80
WIRE 304 80 208 80
WIRE 912 80 912 48
WIRE 464 96 464 -96
WIRE 464 96 368 96
WIRE 512 96 464 96
WIRE 624 96 624 -80
WIRE 624 96 592 96
WIRE 656 96 624 96
WIRE 784 96 736 96
WIRE 880 96 784 96
WIRE 304 112 288 112
WIRE 1040 112 1040 -80
WIRE 1040 112 944 112
WIRE 1152 112 1040 112
WIRE 880 128 864 128
WIRE -96 144 -96 80
WIRE 208 144 208 80
WIRE 336 160 336 128
WIRE 784 160 784 96
WIRE 912 176 912 144
WIRE -512 224 -512 192
WIRE -416 224 -416 80
WIRE 208 240 208 208
WIRE 288 240 288 112
WIRE 352 240 288 240
WIRE 464 240 464 96
WIRE 464 240 432 240
WIRE -96 256 -96 224
WIRE 784 256 784 224
WIRE 864 256 864 128
WIRE 928 256 864 256
WIRE 1040 256 1040 112
WIRE 1040 256 1008 256
WIRE 288 272 288 240
WIRE 864 288 864 256
WIRE -512 336 -512 304
WIRE -416 336 -416 304
FLAG -416 336 0
FLAG -512 336 0
FLAG -512 192 +5V
FLAG 336 160 +5V
FLAG 208 240 0
FLAG 288 352 0
FLAG 336 32 0
FLAG 912 176 +5V
FLAG 784 256 0
FLAG 864 368 0
FLAG 912 48 0
FLAG -96 256 0
FLAG -96 -96 +5V
SYMBOL Opamps\\LT1677 336 160 M180
SYMATTR InstName U1
SYMBOL voltage -416 208 R0
WINDOW 123 24 132 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR SpiceLine ""
SYMATTR InstName V1
SYMATTR Value SINE(0 1 5000)
SYMBOL res 32 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1.96k
SYMATTR SpiceLine ""
SYMBOL voltage -512 208 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 ""
SYMATTR SpiceLine ""
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL res 176 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1.55k
SYMATTR SpiceLine ""
SYMBOL cap 288 -112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 9.23n
SYMATTR SpiceLine ""
SYMBOL cap 224 208 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C2
SYMATTR Value 10n
SYMATTR SpiceLine ""
SYMBOL res 272 256 R0
SYMATTR InstName R3
SYMATTR Value 2.5k
SYMATTR SpiceLine ""
SYMBOL res 448 224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 575
SYMATTR SpiceLine ""
SYMBOL Opamps\\LT1677 912 176 M180
SYMATTR InstName U2
SYMBOL res 608 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1.65k
SYMATTR SpiceLine ""
SYMBOL res 752 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 641.1
SYMATTR SpiceLine ""
SYMBOL cap 864 -96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 26.57n
SYMATTR SpiceLine ""
SYMBOL cap 800 224 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C4
SYMATTR Value 10n
SYMATTR SpiceLine ""
SYMBOL res 848 272 R0
SYMATTR InstName R7
SYMATTR Value 2.5k
SYMATTR SpiceLine ""
SYMBOL res 1024 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 575
SYMATTR SpiceLine ""
SYMBOL res -112 -96 R0
SYMATTR InstName R9
SYMATTR Value 100k
SYMATTR SpiceLine ""
SYMBOL res -112 128 R0
SYMATTR InstName R10
SYMATTR Value 100k
SYMATTR SpiceLine ""
SYMBOL cap -240 64 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 47n
SYMATTR SpiceLine ""
TEXT -216 400 Left 2 !.tran 5m