* Z:\home\khalils\Downloads\files\data\raw_asc\ADA4351.asc
* Generated by LTspice 26.0.1 for Windows.
* Photodiode model
* ADA4351\nTypical Application Diagram\nFigure 1
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\OpAmps\ADA4351.asy)
VDVDD DVDD 0 3
Cpd INN 0 100p
Ipd INN 0 {Ipd} AC 1
VAVDD AVDD 0 4.9
VDVSS DVSS 0 0
RF0 SW0 INN {RF0}
Rpd INN 0 1G
VAVSS AVSS 0 -0.1
ESWSEL SWSEL 0 DVDD DVSS {SWSEL}
XU1 NC_01 NC_02 NC_03 NC_04 NC_05 NC_06 NC_07 NC_08 NC_09 NC_10 ADA4351 ;pnba IN-)IN+)AVSS)DVSS)SWSEL)DVDD)AVDD)OUT)SW1)SW0
Cext ADCIN 0 {Cext}
RF1 SW1 INN {RF1}
Rext ADCIN OUT {Rext}
.step param Ipd 0 4u 0.1u
.op
.param RF0=100k RF1=1Meg
.param Rext=100 Cext=1n
.param SWSEL=1
.lib ADA4351.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 7488 3664
WIRE -3008 304 -3008 288
WIRE -2816 304 -2816 288
WIRE -2464 352 -2592 352
WIRE -2272 352 -2384 352
WIRE -2192 384 -2192 368
WIRE -2128 400 -2144 400
WIRE -3008 432 -3008 384
WIRE -3008 432 -3072 432
WIRE -2816 432 -2816 384
WIRE -2816 432 -2880 432
WIRE -2592 448 -2592 352
WIRE -2496 448 -2592 448
WIRE -2320 448 -2416 448
WIRE -2128 448 -2144 448
WIRE -3072 464 -3072 432
WIRE -3008 464 -3008 432
WIRE -2880 464 -2880 432
WIRE -2816 464 -2816 432
WIRE -2192 528 -2192 464
WIRE -2320 544 -2320 448
WIRE -2272 544 -2272 352
WIRE -3008 560 -3008 544
WIRE -2816 560 -2816 544
WIRE -2464 592 -2464 576
WIRE -2416 592 -2416 576
WIRE -2320 592 -2320 544
WIRE -2272 592 -2272 544
WIRE -2192 592 -2192 528
WIRE -2848 720 -2992 720
WIRE -2736 720 -2848 720
WIRE -2592 720 -2592 448
WIRE -2592 720 -2736 720
WIRE -2560 720 -2592 720
WIRE -2512 720 -2560 720
WIRE -2080 736 -2144 736
WIRE -2032 736 -2080 736
WIRE -1904 736 -1952 736
WIRE -1792 736 -1904 736
WIRE -2560 752 -2592 752
WIRE -2512 752 -2560 752
WIRE -2992 768 -2992 720
WIRE -2848 768 -2848 720
WIRE -2736 768 -2736 720
WIRE -1904 784 -1904 736
WIRE -2992 880 -2992 848
WIRE -2848 880 -2848 848
WIRE -2848 880 -2992 880
WIRE -2736 880 -2736 832
WIRE -2736 880 -2848 880
WIRE -2464 880 -2464 864
WIRE -2416 880 -2416 864
WIRE -1904 880 -1904 848
WIRE -2736 928 -2736 880
WIRE -2592 928 -2592 752
RECTANGLE Normal -2640 912 -3088 656 2
SYMBOL voltage -3008 288 R0
WINDOW 123 0 0 Left 2
SYMATTR InstName VAVDD
SYMATTR Value 4.9
SYMBOL cap -1920 784 R0
WINDOW 0 39 7 Left 2
WINDOW 3 34 49 Left 2
SYMATTR InstName Cext
SYMATTR Value {Cext}
SYMBOL current -2992 768 R0
WINDOW 0 11 -15 Left 2
WINDOW 3 15 84 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Ipd
SYMATTR Value {Ipd}
SYMATTR Value2 AC 1
SYMBOL voltage -3008 560 M180
WINDOW 123 0 0 Left 2
WINDOW 0 20 100 Left 2
WINDOW 3 26 21 Left 2
SYMATTR InstName VAVSS
SYMATTR Value -0.1
SYMBOL cap -2752 768 R0
SYMATTR InstName Cpd
SYMATTR Value 100p
SYMBOL voltage -2816 288 R0
WINDOW 123 0 0 Left 2
SYMATTR InstName VDVDD
SYMATTR Value 3
SYMBOL res -2864 752 R0
SYMATTR InstName Rpd
SYMATTR Value 1G
SYMBOL res -2368 336 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName RF1
SYMATTR Value {RF1}
SYMBOL ADA4351 -1600 704 R0
SYMATTR InstName U1
SYMBOL voltage -2816 560 M180
WINDOW 123 0 0 Left 2
WINDOW 0 21 98 Left 2
WINDOW 3 27 22 Left 2
SYMATTR InstName VDVSS
SYMATTR Value 0
SYMBOL res -1936 720 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rext
SYMATTR Value {Rext}
SYMBOL e -2192 480 R180
WINDOW 0 -132 111 Left 2
WINDOW 3 -136 2 Left 2
SYMATTR InstName ESWSEL
SYMATTR Value {SWSEL}
SYMBOL res -2400 432 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName RF0
SYMATTR Value {RF0}
FLAG -2080 736 OUT
FLAG -3008 288 AVDD
FLAG -3008 560 AVSS
FLAG -3072 464 0
FLAG -1904 880 0
FLAG -2560 752 INP
FLAG -2560 720 INN
FLAG -2816 288 DVDD
FLAG -2816 560 DVSS
FLAG -2880 464 0
FLAG -2128 448 DVDD
FLAG -2192 368 0
FLAG -2192 528 SWSEL
FLAG -2128 400 DVSS
FLAG -2736 928 0
FLAG -2592 928 0
FLAG -2464 576 AVDD
FLAG -2416 576 DVDD
FLAG -2464 880 AVSS
FLAG -2416 880 DVSS
FLAG -1792 736 ADCIN
FLAG -2320 544 SW0
FLAG -2272 544 SW1
TEXT -3072 680 Left 2 ;Photodiode model
TEXT -2600 72 Left 2 ;ADA4351\nTypical Application Diagram\nFigure 1
TEXT -3080 944 Left 2 !.step param Ipd 0 4u 0.1u
TEXT -2600 176 Left 2 !.op\n.param RF0=100k RF1=1Meg\n.param Rext=100 Cext=1n\n.param SWSEL=1