Version 4
SHEET 1 1392 1204
WIRE 96 -96 -48 -96
WIRE 112 -96 96 -96
WIRE -48 -64 -48 -96
WIRE 800 -64 496 -64
WIRE 496 0 496 -64
WIRE 688 0 656 0
WIRE 800 0 800 -64
WIRE 800 0 768 0
WIRE -48 32 -48 16
WIRE 112 80 112 -96
WIRE 720 96 720 80
WIRE 656 112 656 0
WIRE 688 112 656 112
WIRE 800 128 800 0
WIRE 800 128 752 128
WIRE 864 128 800 128
WIRE -160 144 -240 144
WIRE 0 144 -96 144
WIRE 272 144 224 144
WIRE 320 144 272 144
WIRE 384 144 320 144
WIRE 496 144 496 64
WIRE 496 144 464 144
WIRE 528 144 496 144
WIRE 640 144 608 144
WIRE 688 144 640 144
WIRE -240 176 -240 144
WIRE 320 176 320 144
WIRE 640 176 640 144
WIRE 720 176 720 160
WIRE 0 240 -64 240
WIRE 256 240 224 240
WIRE 256 272 256 240
WIRE 320 272 320 240
WIRE 640 272 640 240
WIRE -240 288 -240 256
WIRE -64 288 -64 240
WIRE 112 352 112 304
WIRE 112 368 112 352
WIRE 112 464 112 448
WIRE 112 560 -32 560
WIRE 128 560 112 560
WIRE -32 592 -32 560
WIRE -32 688 -32 672
WIRE 128 736 128 560
WIRE -144 800 -224 800
WIRE 16 800 -80 800
WIRE 288 800 240 800
WIRE 336 800 288 800
WIRE 432 800 336 800
WIRE 576 800 512 800
WIRE 752 800 576 800
WIRE 800 800 752 800
WIRE -224 832 -224 800
WIRE 336 832 336 800
WIRE 576 832 576 800
WIRE 752 832 752 800
WIRE 16 896 -48 896
WIRE 272 896 240 896
WIRE 272 928 272 896
WIRE 336 928 336 896
WIRE 576 928 576 896
WIRE 624 928 576 928
WIRE 752 928 752 896
WIRE 752 928 704 928
WIRE -224 944 -224 912
WIRE -48 944 -48 896
WIRE 128 1008 128 960
WIRE 128 1024 128 1008
WIRE 656 1040 656 1024
WIRE 576 1056 576 928
WIRE 624 1056 576 1056
WIRE 752 1072 752 928
WIRE 752 1072 688 1072
WIRE 624 1088 576 1088
WIRE 128 1120 128 1104
WIRE 576 1120 576 1088
WIRE 656 1120 656 1104
FLAG -64 288 0
FLAG -240 288 0
FLAG 256 272 0
FLAG 320 272 0
FLAG 112 464 0
FLAG -48 32 0
FLAG 640 272 0
FLAG 864 128 rms
FLAG 96 -96 +V
FLAG 112 352 -V
FLAG 720 80 +V
FLAG 720 176 -V
FLAG -48 944 0
FLAG -224 944 0
FLAG 272 928 0
FLAG 336 928 0
FLAG 128 1120 0
FLAG -32 688 0
FLAG 800 800 rms_
FLAG 112 560 +V1
FLAG 128 1008 -V1
FLAG 656 1024 +V1
FLAG 656 1120 -V1
FLAG 576 1120 0
FLAG -224 800 in1
FLAG -240 144 in
FLAG 272 144 out
FLAG 288 800 out1
SYMBOL SpecialFunctions\\LTC1968 112 192 R0
SYMATTR InstName U1
SYMBOL voltage 112 352 R0
SYMATTR InstName VEE
SYMATTR Value -2.5
SYMBOL voltage -240 160 R0
WINDOW 3 -68 181 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value SINE(0 {sqrt(0.5)} 50 10m)
SYMATTR InstName VS
SYMBOL cap -96 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName Cin
SYMATTR Value 1u
SYMBOL cap 304 176 R0
SYMATTR InstName Cave
SYMATTR Value 10u
SYMBOL voltage -48 -80 R0
SYMATTR InstName VCC
SYMATTR Value 2.5
SYMBOL Opamps\\LT1077 720 64 R0
SYMATTR InstName U5
SYMBOL Misc\\EuropeanResistor 480 128 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 5.6k
SYMBOL Misc\\EuropeanResistor 624 128 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 24.9k
SYMBOL Misc\\EuropeanResistor 784 -16 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 43k
SYMBOL cap 624 176 R0
SYMATTR InstName C2
SYMATTR Value 1u
SYMBOL cap 480 0 R0
SYMATTR InstName C1
SYMATTR Value 10u
SYMBOL SpecialFunctions\\LTC1968 128 848 R0
SYMATTR InstName U2
SYMBOL voltage 128 1008 R0
SYMATTR InstName VEE1
SYMATTR Value -2.5
SYMBOL voltage -224 816 R0
WINDOW 3 -68 181 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value SINE(0 {sqrt(0.5)} 50 10m)
SYMATTR InstName V5
SYMBOL cap -80 784 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName Cin1
SYMATTR Value 1u
SYMBOL cap 320 832 R0
SYMATTR InstName Cave1
SYMATTR Value 10u
SYMBOL voltage -32 576 R0
SYMATTR InstName VBB1
SYMATTR Value 2.5
SYMBOL Opamps\\LT1077 656 1008 R0
SYMATTR InstName U3
SYMBOL Misc\\EuropeanResistor 528 784 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R1_
SYMATTR Value 29.4k
SYMBOL Misc\\EuropeanResistor 720 912 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R2_
SYMATTR Value 100k
SYMBOL cap 560 832 R0
SYMATTR InstName C1_
SYMATTR Value 2.2u
SYMBOL cap 736 832 R0
SYMATTR InstName C2_
SYMATTR Value 2.2u
TEXT -240 -200 Left 2 !.tran 2
TEXT -240 -168 Left 2 !.options plotwinsize=0
TEXT 648 -96 Left 2 ;R3=12.5k+R1+R2