Version 4
SHEET 1 880 680
WIRE -16 -16 -32 -16
WIRE 80 -16 64 -16
WIRE 192 -16 160 -16
WIRE 304 -16 272 -16
WIRE -224 96 -272 96
WIRE -96 96 -144 96
WIRE -32 96 -32 -16
WIRE -32 96 -96 96
WIRE 0 96 -32 96
WIRE 80 96 80 -16
WIRE 80 96 64 96
WIRE 160 96 160 -16
WIRE 160 96 80 96
WIRE 240 128 240 112
WIRE 160 144 160 96
WIRE 208 144 160 144
WIRE -384 160 -384 80
WIRE -272 160 -272 96
WIRE 304 160 304 -16
WIRE 304 160 272 160
WIRE 368 160 304 160
WIRE 496 160 448 160
WIRE 560 160 496 160
WIRE -96 176 -96 96
WIRE 160 176 -96 176
WIRE 208 176 160 176
WIRE 496 192 496 160
WIRE -96 208 -96 176
WIRE 240 208 240 192
WIRE 496 288 496 256
WIRE -384 304 -384 240
WIRE -272 304 -272 240
WIRE -96 304 -96 288
WIRE 160 336 160 176
WIRE 368 336 160 336
WIRE 496 336 448 336
WIRE 560 336 496 336
WIRE 496 368 496 336
WIRE 496 464 496 432
FLAG -96 304 0
FLAG 240 208 0
FLAG 496 288 0
FLAG 240 112 +5V
FLAG -272 304 0
FLAG -384 304 0
FLAG -384 80 +5V
FLAG 560 160 out
IOPIN 560 160 Out
FLAG 560 336 outref
IOPIN 560 336 Out
FLAG 496 464 0
SYMBOL Opamps\\LTC6240 240 160 R0
SYMATTR InstName U1
SYMBOL Misc\\EuropeanResistor 176 0 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 10Meg
SYMBOL Misc\\EuropeanResistor -112 304 M180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R2
SYMATTR Value 500
SYMBOL Misc\\EuropeanResistor -240 112 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor 352 176 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL cap 480 192 R0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL diode 0 112 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value PD
SYMBOL voltage -272 144 R0
SYMATTR InstName VREF
SYMATTR Value 2.5
SYMBOL voltage -384 144 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL current 64 -16 R90
WINDOW 0 -32 40 VBottom 2
WINDOW 3 32 40 VTop 2
SYMATTR InstName I1
SYMATTR Value 200n
SYMBOL Misc\\EuropeanResistor 352 352 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL cap 480 368 R0
SYMATTR InstName C2
SYMATTR Value 10n
TEXT -392 376 Left 2 !.model PD D(Is=1e-15 N=1.5 RS=100)
TEXT -392 416 Left 2 !.dc I1 0 200n 10n
TEXT -24 264 Left 2 ;1k||1k
TEXT -40 -112 Left 2 ;Photodiode
TEXT 176 -144 Left 2 ;CMOS Opamp\nSingle Supply \nRail-Rail Output
TEXT -280 24 Left 2 ;Reference
TEXT -400 -24 Left 2 ;Power Supply
RECTANGLE Normal 96 144 -48 -80 2