Version 4
SHEET 1 1500 1448
WIRE 384 992 416 992
WIRE 528 992 608 992
WIRE 608 1200 608 992
WIRE 608 992 640 992
WIRE 464 1184 416 1184
WIRE 416 1184 416 992
WIRE 416 992 448 992
WIRE 464 1216 416 1216
WIRE 416 1216 416 1248
WIRE 496 1232 496 1360
WIRE 496 1360 416 1360
WIRE 416 1360 416 1328
WIRE -16 992 16 992
WIRE 256 1200 256 1056
WIRE 256 992 304 992
WIRE 64 1184 16 1184
WIRE 16 1184 16 1056
WIRE 16 992 48 992
WIRE 64 1216 16 1216
WIRE 96 1232 96 1360
WIRE 224 992 256 992
WIRE 160 992 128 992
WIRE -16 1296 16 1296
WIRE 16 1296 16 1216
WIRE 16 1216 -16 1216
WIRE -96 1296 -128 1296
WIRE -96 1216 -128 1216
WIRE -96 992 -224 992
WIRE 96 1360 416 1360
WIRE 96 1392 96 1360
WIRE -192 1056 -224 1056
WIRE -224 1056 -224 992
WIRE -224 992 -256 992
WIRE -112 1056 -80 1056
WIRE -16 1056 16 1056
WIRE 16 1056 16 992
WIRE 224 1056 256 1056
WIRE 256 1056 256 992
WIRE 160 1056 16 1056
WIRE 128 1200 256 1200
WIRE 528 1200 608 1200
WIRE 96 1168 96 1136
WIRE 96 1136 128 1136
WIRE 496 1168 496 1136
WIRE 496 1136 528 1136
WIRE 720 1328 720 1360
WIRE 720 1360 496 1360
WIRE 720 1248 720 1216
FLAG 96 1392 0
FLAG -256 992 0
FLAG -128 1216 ISNS
IOPIN -128 1216 In
FLAG 640 992 CEA
IOPIN 640 992 Out
FLAG -128 1296 IDEM
IOPIN -128 1296 In
FLAG 128 1136 5V
IOPIN 128 1136 In
FLAG 528 1136 5V
IOPIN 528 1136 In
FLAG 720 1216 5V
IOPIN 720 1216 Out
SYMBOL res 544 976 R90
WINDOW 0 -23 72 VBottom 0
WINDOW 3 -27 60 VTop 0
SYMATTR InstName R6
SYMATTR Value 100K
SYMBOL res 400 976 R90
WINDOW 0 -22 70 VBottom 0
WINDOW 3 -27 58 VTop 0
SYMATTR InstName R5
SYMATTR Value 100K
SYMBOL voltage 416 1232 R0
WINDOW 0 -123 45 Left 0
WINDOW 3 -120 65 Left 0
SYMATTR InstName VREF/2
SYMATTR Value 2.5V
SYMBOL res 144 976 R90
WINDOW 0 -19 71 VBottom 0
WINDOW 3 -23 63 VTop 0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL res 0 976 R90
WINDOW 0 -19 69 VBottom 0
WINDOW 3 -21 61 VTop 0
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL cap 224 976 R90
WINDOW 0 -17 39 VBottom 0
WINDOW 3 -25 37 VTop 0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL res 0 1200 R90
WINDOW 0 -20 61 VBottom 0
WINDOW 3 -25 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL res 0 1280 R90
WINDOW 0 -16 60 VBottom 0
WINDOW 3 -24 55 VTop 0
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL cap -16 1040 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL res -96 1040 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R7
SYMATTR Value 2K2
SYMBOL cap 224 1040 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C3
SYMATTR Value 47p
SYMBOL Opamps\\1pole 96 1200 R0
SYMATTR InstName U1
SYMBOL Opamps\\1pole 496 1200 R0
SYMATTR InstName U2
SYMBOL voltage 720 1232 R0
WINDOW 0 37 45 Left 0
WINDOW 3 38 66 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5V