Version 4
SHEET 1 1056 760
WIRE -640 -48 -640 -64
WIRE -544 -48 -544 -64
WIRE -640 64 -640 32
WIRE -544 64 -544 32
WIRE -272 176 -336 176
WIRE -96 176 -272 176
WIRE 224 208 160 208
WIRE 400 208 224 208
WIRE -656 240 -688 240
WIRE -544 240 -656 240
WIRE -400 240 -400 176
WIRE -400 240 -464 240
WIRE 720 240 656 240
WIRE 896 240 720 240
WIRE -400 256 -400 240
WIRE -272 256 -336 256
WIRE -240 256 -272 256
WIRE -656 272 -656 240
WIRE -96 272 -96 176
WIRE -96 272 -176 272
WIRE -48 272 -96 272
WIRE 96 272 96 208
WIRE 96 272 32 272
WIRE -240 288 -272 288
WIRE 96 288 96 272
WIRE 224 288 160 288
WIRE 256 288 224 288
WIRE 400 304 400 208
WIRE 400 304 320 304
WIRE 448 304 400 304
WIRE 592 304 592 240
WIRE 592 304 528 304
WIRE 256 320 224 320
WIRE 592 320 592 304
WIRE 720 320 656 320
WIRE 752 320 720 320
WIRE -400 336 -400 256
WIRE -272 336 -272 288
WIRE -272 336 -320 336
WIRE 896 336 896 240
WIRE 896 336 816 336
WIRE 944 336 896 336
WIRE 752 352 720 352
WIRE -272 368 -272 336
WIRE 96 368 96 288
WIRE 224 368 224 320
WIRE 224 368 176 368
WIRE -656 384 -656 352
WIRE 224 400 224 368
WIRE 592 400 592 320
WIRE 720 400 720 352
WIRE 720 400 672 400
WIRE 720 432 720 400
FLAG -640 64 0
FLAG -544 64 0
FLAG -208 304 V-
FLAG -544 -64 V-
FLAG -640 -64 V+
FLAG -208 240 V+
FLAG -272 368 0
FLAG -656 384 0
FLAG -688 240 In
IOPIN -688 240 In
FLAG 288 336 V-
FLAG 288 272 V+
FLAG 224 400 0
FLAG 784 368 V-
FLAG 784 304 V+
FLAG 720 432 0
FLAG 944 336 Out3
IOPIN 944 336 Out
FLAG -96 176 Out1
IOPIN -96 176 Out
FLAG 400 208 Out2
IOPIN 400 208 Out
SYMBOL voltage -640 -64 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -544 -64 R0
SYMATTR InstName V2
SYMATTR Value -5
SYMBOL LTC6241 -208 272 R0
WINDOW 3 26 -62 Left 0
SYMATTR InstName U1
SYMBOL cap -400 272 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 43 VBottom 2
SYMATTR InstName C8
SYMATTR Value 5nF
SYMBOL res -256 272 R180
WINDOW 0 34 65 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R14
SYMATTR Value 390k
SYMBOL res -304 320 R90
WINDOW 0 65 56 VBottom 2
WINDOW 3 70 54 VTop 2
SYMATTR InstName R15
SYMATTR Value 583
SYMBOL cap -336 160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 -50 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 5nF
SYMBOL res -448 224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 39k
SYMBOL voltage -656 256 R0
WINDOW 3 -196 163 Left 2
WINDOW 123 28 122 Left 2
WINDOW 39 0 0 Left 0
SYMATTR Value SINE(0 .01 2125 .005 0 0 47)
SYMATTR Value2 AC 1
SYMATTR InstName V3
SYMBOL LTC6241 288 304 R0
WINDOW 3 26 -62 Left 0
SYMATTR InstName U2
SYMBOL cap 96 304 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 43 VBottom 2
SYMATTR InstName C10
SYMATTR Value 5nF
SYMBOL res 240 304 R180
WINDOW 0 34 65 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R17
SYMATTR Value 390k
SYMBOL res 192 352 R90
WINDOW 0 65 56 VBottom 2
WINDOW 3 70 54 VTop 2
SYMATTR InstName R18
SYMATTR Value 583
SYMBOL cap 160 192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 -50 32 VTop 2
SYMATTR InstName C9
SYMATTR Value 5nF
SYMBOL res 48 256 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R16
SYMATTR Value 39k
SYMBOL LTC6241 784 336 R0
WINDOW 3 26 -62 Left 0
SYMATTR InstName U3
SYMBOL cap 592 336 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 43 VBottom 2
SYMATTR InstName C12
SYMATTR Value 5nF
SYMBOL res 736 336 R180
WINDOW 0 34 65 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R20
SYMATTR Value 390k
SYMBOL res 688 384 R90
WINDOW 0 65 56 VBottom 2
WINDOW 3 70 54 VTop 2
SYMATTR InstName R21
SYMATTR Value 583
SYMBOL cap 656 224 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 -50 32 VTop 2
SYMATTR InstName C11
SYMATTR Value 5nF
SYMBOL res 544 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R19
SYMATTR Value 39k
TEXT -488 528 Left 0 !.tran .050
TEXT -496 496 Left 2 !;ac oct 1000 2.044k 2.207k
TEXT -704 488 Left 2 ;One Section\nFc = 2.124 kHz\nA = 13.985 dB\nFl = 2.044 kHz\nFh = 2.207 kHz\nBW = 163 Hz\nQ = 13
TEXT -704 688 Left 2 ;Output reaches 50% of final value 1.3 ms after input tone starts.\nOutput drops to 50% of final value 1.5 ms after input tone stops.
TEXT -704 744 Left 2 ;A=6.9 dB at 2.295 kHz, down about 7.1 dB.
TEXT 264 504 Left 2 ;Three Sections\nFc = 2.124 kHz\nA = 41.95 dB\nFl = 2.083 kHz\nFh = 2.166 kHz\nBW = 89 Hz\nQ = 23.9\nA = 20.7 dB at 2.295 kHz, down 21.2 dB\nOutput reaches 50% of final value 5 ms after input tone starts.