Version 4
SHEET 1 1620 680
WIRE -336 -112 -352 -112
WIRE -240 -112 -256 -112
WIRE -240 -96 -240 -112
WIRE -352 -64 -352 -112
WIRE -96 -64 -352 -64
WIRE 160 -64 -96 -64
WIRE 416 -64 160 -64
WIRE 688 -64 416 -64
WIRE 944 -64 688 -64
WIRE 1200 -64 944 -64
WIRE 1456 -64 1200 -64
WIRE -480 16 -512 16
WIRE -464 16 -480 16
WIRE -224 16 -256 16
WIRE -208 16 -224 16
WIRE 32 16 0 16
WIRE 48 16 32 16
WIRE 288 16 256 16
WIRE 304 16 288 16
WIRE 560 16 528 16
WIRE 576 16 560 16
WIRE 816 16 784 16
WIRE 832 16 816 16
WIRE 1072 16 1040 16
WIRE 1088 16 1072 16
WIRE 1328 16 1296 16
WIRE 1344 16 1328 16
WIRE -352 96 -352 -64
WIRE -352 96 -432 96
WIRE -96 96 -96 -64
WIRE -96 96 -176 96
WIRE 160 96 160 -64
WIRE 160 96 80 96
WIRE 416 96 416 -64
WIRE 416 96 336 96
WIRE 688 96 688 -64
WIRE 688 96 608 96
WIRE 944 96 944 -64
WIRE 944 96 864 96
WIRE 1200 96 1200 -64
WIRE 1200 96 1120 96
WIRE 1456 96 1456 -64
WIRE 1456 96 1376 96
WIRE -480 112 -480 16
WIRE -464 112 -480 112
WIRE -224 112 -224 16
WIRE -208 112 -224 112
WIRE 32 112 32 16
WIRE 48 112 32 112
WIRE 288 112 288 16
WIRE 304 112 288 112
WIRE 560 112 560 16
WIRE 576 112 560 112
WIRE 816 112 816 16
WIRE 832 112 816 112
WIRE 1072 112 1072 16
WIRE 1088 112 1072 112
WIRE 1328 112 1328 16
WIRE 1344 112 1328 112
WIRE -384 128 -384 16
WIRE -384 128 -400 128
WIRE -336 128 -336 16
WIRE -336 128 -384 128
WIRE -128 128 -128 16
WIRE -128 128 -144 128
WIRE -80 128 -80 16
WIRE -80 128 -128 128
WIRE 128 128 128 16
WIRE 128 128 112 128
WIRE 384 128 384 16
WIRE 384 128 368 128
WIRE 448 128 448 16
WIRE 448 128 384 128
WIRE 656 128 656 16
WIRE 656 128 640 128
WIRE 704 128 704 16
WIRE 704 128 656 128
WIRE 912 128 912 16
WIRE 912 128 896 128
WIRE 960 128 960 16
WIRE 960 128 912 128
WIRE 1168 128 1168 16
WIRE 1168 128 1152 128
WIRE 1424 128 1424 16
WIRE 1424 128 1408 128
WIRE 1616 128 1424 128
WIRE -592 144 -592 16
WIRE -592 144 -688 144
WIRE -480 144 -528 144
WIRE -464 144 -480 144
WIRE -336 144 -336 128
WIRE -224 144 -272 144
WIRE -208 144 -224 144
WIRE -80 144 -80 128
WIRE 32 144 -16 144
WIRE 48 144 32 144
WIRE 128 144 128 128
WIRE 176 144 176 16
WIRE 176 144 128 144
WIRE 288 144 240 144
WIRE 304 144 288 144
WIRE 448 144 448 128
WIRE 560 144 512 144
WIRE 576 144 560 144
WIRE 704 144 704 128
WIRE 816 144 768 144
WIRE 832 144 816 144
WIRE 960 144 960 128
WIRE 1072 144 1024 144
WIRE 1088 144 1072 144
WIRE 1168 144 1168 128
WIRE 1216 144 1216 16
WIRE 1216 144 1168 144
WIRE 1328 144 1280 144
WIRE 1344 144 1328 144
WIRE -480 160 -480 144
WIRE -224 160 -224 144
WIRE 32 160 32 144
WIRE 288 160 288 144
WIRE 560 160 560 144
WIRE 816 160 816 144
WIRE 1072 160 1072 144
WIRE 1328 160 1328 144
WIRE -688 240 -688 224
WIRE -480 256 -480 240
WIRE -224 256 -224 240
WIRE 32 256 32 240
WIRE 288 256 288 240
WIRE 560 256 560 240
WIRE 816 256 816 240
WIRE 1072 256 1072 240
WIRE 1328 256 1328 240
WIRE -432 288 -432 160
WIRE -176 288 -176 160
WIRE -176 288 -432 288
WIRE 80 288 80 160
WIRE 80 288 -176 288
WIRE 336 288 336 160
WIRE 336 288 80 288
WIRE 608 288 608 160
WIRE 608 288 336 288
WIRE 864 288 864 160
WIRE 864 288 608 288
WIRE 1120 288 1120 160
WIRE 1120 288 864 288
WIRE 1376 288 1376 160
WIRE 1376 288 1120 288
WIRE -432 336 -432 288
WIRE -352 336 -432 336
WIRE -256 336 -272 336
WIRE -256 352 -256 336
FLAG -480 256 0
FLAG -240 -96 0
FLAG -256 352 0
FLAG -688 240 0
FLAG -224 256 0
FLAG 32 256 0
FLAG 288 256 0
FLAG 560 256 0
FLAG 816 256 0
FLAG 1072 256 0
FLAG 1328 256 0
SYMBOL Opamps\\UniversalOpamp2 -432 128 R0
SYMATTR InstName U1
SYMBOL cap -528 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1.5n
SYMBOL res -368 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res -496 0 R90
WINDOW 0 -40 53 VBottom 2
WINDOW 3 -36 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res -496 144 R0
SYMATTR InstName R3
SYMATTR Value {RX}
SYMBOL voltage -352 -112 R270
WINDOW 0 55 55 VTop 2
WINDOW 3 59 56 VBottom 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 15V
SYMBOL voltage -256 336 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 15V
SYMBOL voltage -688 128 R0
WINDOW 3 24 160 Invisible 2
WINDOW 123 24 132 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(-1 1 0 100n 100n 1.5ms 3ms)
SYMATTR Value2 AC 1
SYMATTR InstName V3
SYMBOL Opamps\\UniversalOpamp2 -176 128 R0
SYMATTR InstName U2
SYMBOL cap -272 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 1.5n
SYMBOL res -112 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL res -240 0 R90
WINDOW 0 -40 53 VBottom 2
WINDOW 3 -36 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL res -240 144 R0
SYMATTR InstName R6
SYMATTR Value {RX}
SYMBOL Opamps\\UniversalOpamp2 80 128 R0
SYMATTR InstName U3
SYMBOL cap -16 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 1.5n
SYMBOL res 144 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL res 16 0 R90
WINDOW 0 -40 53 VBottom 2
WINDOW 3 -36 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 10k
SYMBOL res 16 144 R0
SYMATTR InstName R9
SYMATTR Value {RX}
SYMBOL Opamps\\UniversalOpamp2 336 128 R0
SYMATTR InstName U4
SYMBOL cap 240 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 1.5n
SYMBOL res 400 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 10k
SYMBOL res 272 0 R90
WINDOW 0 -40 53 VBottom 2
WINDOW 3 -36 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 10k
SYMBOL res 272 144 R0
SYMATTR InstName R12
SYMATTR Value {RX}
SYMBOL Opamps\\UniversalOpamp2 608 128 R0
SYMATTR InstName U5
SYMBOL cap 512 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 1.5n
SYMBOL res 672 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 10k
SYMBOL res 544 0 R90
WINDOW 0 -40 53 VBottom 2
WINDOW 3 -36 56 VTop 2
SYMATTR InstName R14
SYMATTR Value 10k
SYMBOL res 544 144 R0
SYMATTR InstName R15
SYMATTR Value {RX}
SYMBOL Opamps\\UniversalOpamp2 864 128 R0
SYMATTR InstName U6
SYMBOL cap 768 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 1.5n
SYMBOL res 928 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R16
SYMATTR Value 10k
SYMBOL res 800 0 R90
WINDOW 0 -40 53 VBottom 2
WINDOW 3 -36 56 VTop 2
SYMATTR InstName R17
SYMATTR Value 10k
SYMBOL res 800 144 R0
SYMATTR InstName R18
SYMATTR Value {RX}
SYMBOL Opamps\\UniversalOpamp2 1120 128 R0
SYMATTR InstName U7
SYMBOL cap 1024 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 1.5n
SYMBOL res 1184 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R19
SYMATTR Value 10k
SYMBOL res 1056 0 R90
WINDOW 0 -40 53 VBottom 2
WINDOW 3 -36 56 VTop 2
SYMATTR InstName R20
SYMATTR Value 10k
SYMBOL res 1056 144 R0
SYMATTR InstName R21
SYMATTR Value {RX}
SYMBOL Opamps\\UniversalOpamp2 1376 128 R0
SYMATTR InstName U8
SYMBOL cap 1280 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value 1.5n
SYMBOL res 1440 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R22
SYMATTR Value 10k
SYMBOL res 1312 0 R90
WINDOW 0 -40 53 VBottom 2
WINDOW 3 -36 56 VTop 2
SYMATTR InstName R23
SYMATTR Value 10k
SYMBOL res 1312 144 R0
SYMATTR InstName R24
SYMATTR Value {RX}
TEXT -664 344 Left 2 !;tran 0 5msek 0
TEXT -672 384 Left 2 !.ac dec 1000 10 1000
TEXT -680 432 Left 2 !.step param RX 1K 10K 1K