* Z:\home\khalils\Downloads\files\data\raw_asc\AD4698.asc
* Generated by LTspice 26.0.1 for Windows.
* Simulation Setup
* Kickback Filter
* OSR - Oversampling ratio\nSEQ_EN - Sequencer enable\nCNV_FREQ_NOISE - sampling frequency for noise analysis (must be 0 for transient simulations)\nCNV_CH_NOISE - sampled channel for noise analsis\nCOM_OPT: optional conversion reference COMM instead of REFGND\nHIZ: Input precharge enable
* Sampling Frequency
* IN7 Channel RC Kickback Filter
* IN7 Channel Stimulus
* Part parameters:
* IN6 Channel RC Kickback Filter
* IN6 Channel Stimulus
* IN5 Channel RC Kickback Filter
* IN5 Channel Stimulus
* IN4 Channel RC Kickback Filter
* IN4 Channel Stimulus
* IN3 Channel RC Kickback Filter
* IN3 Channel Stimulus
* IN2 Channel RC Kickback Filter
* IN2 Channel Stimulus
* IN1 Channel RC Kickback Filter
* IN1 Channel Stimulus
* IN0 Channel RC Kickback Filter
* IN0 Channel Stimulus
* .noise v(vsample) V14 dec 100 0.001u 10000000\n.measure noise NOISERMS integ V(onoise) from 0.1 to 10Meg\n.measure noise NOISEFLCIK integ V(onoise) from 0.1 to 10
* Set the following text as SPICE directive for Noise Simulation
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\ADC\AD4698.asy)
A1 vsample 0 in0_sampled 0 0 0 vsampled_in0 0 SAMPLEHOLD
A4 vsample 0 in1_sampled 0 0 0 vsampled_in1 0 SAMPLEHOLD
A3 CH_OUT0 0 0 0 0 in0_sampled in1_sampled 0 BUF td=400n trise = 1n
XU1 IN0 IN1 IN2 IN3 IN4 IN5 IN6 IN7 0 N004 N005 N006 0 CH_OUT0 NC_09 NC_10 vsample RESET CNV N003 N002 N002 REF REF AD4698 OSR=1 SEQ_EN=0 CNV_FREQ_NOISE=0 CNV_CH_NOISE=0 COM_OPT=0 ;pnba IN0)IN1)IN2)IN3)IN4)IN5)IN6)IN7)COMM)SLCT0)SLCT1)SLCT2)REFGND)CH_OUT0)CH_OUT1)CH_OUT2)VSAMPLE)RESET)CNV)VDD)LDO_IN)AVDD)REF)REFIN
R9 IN6 VS6 {Rext} noiseless
V_VDD N003 0 1.8
C2 vsampled_in0 0 1p
C17 IN0 0 {Cext}
V13 VS1 0 1.2
R11 IN3 VS3 {Rext} noiseless
C14 IN3 0 {Cext}
V_CNV CNV 0 PULSE(0 1.8 110u 10n 10n 10n {t_cnv})
V14 VS0 0 0.6
C6 vsample 0 1p
V_SLCT0 N004 0 PULSE(0 1.8 {110u+0.5*t_cnv} 10n 10n {t_cnv-20n} {t_cnv*2})
C13 IN4 0 {Cext}
V_SLCT2 N006 0 PULSE(0 1.8 {110u-0.5*t_cnv+4*t_cnv} 10n 10n {4*t_cnv-20n} {t_cnv*8})
C8 vsampled_in1 0 1p
R14 IN0 VS0 {Rext} noiseless
RREF REF N001 1
R13 IN1 VS1 {Rext} noiseless
C5 IN7 0 {Cext}
C12 IN6 0 {Cext}
V3 VS5 0 3.6
V_AVDD N002 0 5
V10 VS4 0 3
C16 IN1 0 {Cext}
V_REF N001 0 5
C4 IN5 0 {Cext}
R3 IN5 VS5 {Rext} noiseless
V9 VS6 0 4.2
V4 VS7 0 4.8
CREF REF 0 1F
C15 IN2 0 {Cext}
V11 VS3 0 2.4
R12 IN2 VS2 {Rext} noiseless
V_SLCT1 N005 0 PULSE(0 1.8 {110u-0.5*t_cnv+2*t_cnv} 10n 10n {2*t_cnv-20n} {t_cnv*4})
R10 IN4 VS4 {Rext} noiseless
R4 IN7 VS7 {Rext} noiseless
V12 VS2 0 1.8
V_RESET RESET 0 PULSE(0 1.8 10u 10n 10n 10n 1 1)
.tran 0 {t_cnv*64+110u}
.param f_cnv=1Meg
.param t_cnv=1/f_cnv
.param Rext=4.12k
.param Cext=1n
.lib AD4698.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 5928 2704
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SYMBOL res -512 336 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R12
SYMATTR Value {Rext} noiseless
SYMBOL res -512 -272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R14
SYMATTR Value {Rext} noiseless
SYMBOL cap -464 1616 R0
WINDOW 3 27 53 Left 2
SYMATTR Value {Cext}
SYMATTR InstName C12
SYMBOL AD4698 -48 816 R0
SYMATTR InstName U1
SYMBOL voltage -832 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 19 101 Left 2
SYMATTR Value 1.2
SYMATTR InstName V13
SYMBOL cap -240 320 R0
SYMATTR InstName CREF
SYMATTR Value 1F
SYMBOL voltage -832 1296 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 19 101 Left 2
SYMATTR Value 3.6
SYMATTR InstName V3
SYMBOL cap -464 1920 R0
WINDOW 3 22 55 Left 2
SYMATTR Value {Cext}
SYMATTR InstName C5
SYMBOL voltage 848 624 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR Value PULSE(0 1.8 110u 10n 10n 10n {t_cnv})
SYMATTR InstName V_CNV
SYMBOL cap 1184 928 R0
SYMATTR InstName C2
SYMATTR Value 1p
SYMBOL res -512 1552 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value {Rext} noiseless
SYMBOL voltage -256 1344 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR Value PULSE(0 1.8 {110u+0.5*t_cnv} 10n 10n {t_cnv-20n} {t_cnv*2})
SYMATTR InstName V_SLCT0
SYMBOL res -512 944 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value {Rext} noiseless
SYMBOL cap 432 752 R0
WINDOW 0 46 19 Left 2
WINDOW 3 50 45 Left 2
SYMATTR InstName C6
SYMATTR Value 1p
SYMBOL voltage -832 992 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 19 101 Left 2
SYMATTR Value 3
SYMATTR InstName V10
SYMBOL cap 1184 1168 R0
SYMATTR InstName C8
SYMATTR Value 1p
SYMBOL voltage -208 1216 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR Value PULSE(0 1.8 {110u-0.5*t_cnv+2*t_cnv} 10n 10n {2*t_cnv-20n} {t_cnv*4})
SYMATTR InstName V_SLCT1
SYMBOL voltage -160 1088 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR Value PULSE(0 1.8 {110u-0.5*t_cnv+4*t_cnv} 10n 10n {4*t_cnv-20n} {t_cnv*8})
SYMATTR InstName V_SLCT2
SYMBOL voltage -832 1600 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 19 101 Left 2
SYMATTR Value 4.2
SYMATTR InstName V9
SYMBOL SpecialFunctions\\sample 1056 896 R0
WINDOW 0 13 -43 Left 2
SYMATTR InstName A1
SYMBOL cap -464 96 R0
WINDOW 3 26 53 Left 2
SYMATTR Value {Cext}
SYMATTR InstName C16
SYMBOL res -512 1856 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value {Rext} noiseless
SYMBOL voltage -832 688 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 19 101 Left 2
SYMATTR Value 2.4
SYMATTR InstName V11
SYMBOL Digital\\buf 528 848 R0
WINDOW 3 41 129 Left 2
WINDOW 0 26 26 Left 2
WINDOW 123 40 105 Left 2
SYMATTR Value td=400n
SYMATTR InstName A3
SYMATTR Value2 trise = 1n
SYMBOL voltage 656 672 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR InstName V_RESET
SYMATTR Value PULSE(0 1.8 10u 10n 10n 10n 1 1)
SYMBOL voltage 304 480 M180
WINDOW 123 24 -26 Left 2
WINDOW 39 24 -5 Left 2
WINDOW 0 24 96 Left 2
WINDOW 3 24 16 Left 2
SYMATTR InstName V_VDD
SYMATTR Value 1.8
SYMBOL cap -464 1312 R0
WINDOW 3 26 52 Left 2
SYMATTR Value {Cext}
SYMATTR InstName C4
SYMBOL res -128 240 R0
SYMATTR InstName RREF
SYMATTR Value 1
SYMBOL res -512 1248 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value {Rext} noiseless
SYMBOL voltage 208 400 M180
WINDOW 123 24 -26 Left 2
WINDOW 39 24 -5 Left 2
WINDOW 0 24 96 Left 2
WINDOW 3 24 16 Left 2
SYMATTR InstName V_AVDD
SYMATTR Value 5
SYMBOL cap -464 400 R0
WINDOW 3 25 50 Left 2
SYMATTR Value {Cext}
SYMATTR InstName C15
SYMBOL res -512 640 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value {Rext} noiseless
SYMBOL cap -464 -208 R0
WINDOW 3 35 52 Left 2
SYMATTR Value {Cext}
SYMATTR InstName C17
SYMBOL voltage -832 384 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 19 101 Left 2
SYMATTR Value 1.8
SYMATTR InstName V12
SYMBOL cap -464 704 R0
WINDOW 3 23 52 Left 2
SYMATTR Value {Cext}
SYMATTR InstName C14
SYMBOL res -512 32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value {Rext} noiseless
SYMBOL voltage -112 336 R0
WINDOW 123 24 138 Left 2
WINDOW 39 24 117 Left 2
SYMATTR InstName V_REF
SYMATTR Value 5
SYMBOL cap -464 1008 R0
WINDOW 3 23 54 Left 2
SYMATTR Value {Cext}
SYMATTR InstName C13
SYMBOL voltage -832 -224 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 19 101 Left 2
SYMATTR Value 0.6
SYMATTR InstName V14
SYMBOL voltage -832 1904 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 19 101 Left 2
SYMATTR Value 4.8
SYMATTR InstName V4
SYMBOL SpecialFunctions\\sample 1056 1136 R0
WINDOW 0 17 -45 Left 2
SYMATTR InstName A4
FLAG 304 352 0
FLAG -160 480 0
FLAG 848 736 0
FLAG 656 784 0
FLAG 912 864 vsample
FLAG 880 928 in0_sampled
FLAG 1280 912 vsampled_in0
FLAG 1200 1008 0
FLAG 448 832 0
FLAG 912 1104 vsample
FLAG 880 1168 in1_sampled
FLAG 1280 1152 vsampled_in1
FLAG 1200 1248 0
FLAG -208 544 IN0
FLAG -208 576 IN1
FLAG -256 1472 0
FLAG 128 960 0
FLAG 480 656 RESET
FLAG -16 496 REF
FLAG 480 624 CNV
FLAG 448 912 CH_OUT0
FLAG 512 736 vsample
FLAG 208 272 0
FLAG -208 1328 0
FLAG -160 1200 0
FLAG -448 2000 0
FLAG -384 1872 IN7
FLAG -816 1872 VS7
FLAG -832 2032 0
FLAG -208 608 IN2
FLAG -208 640 IN3
FLAG -208 672 IN4
FLAG -208 704 IN5
FLAG -208 736 IN6
FLAG -208 768 IN7
FLAG -208 816 0
FLAG -448 1696 0
FLAG -384 1568 IN6
FLAG -816 1568 VS6
FLAG -832 1728 0
FLAG -448 1392 0
FLAG -384 1264 IN5
FLAG -816 1264 VS5
FLAG -832 1424 0
FLAG -448 1088 0
FLAG -384 960 IN4
FLAG -816 960 VS4
FLAG -832 1120 0
FLAG -448 784 0
FLAG -384 656 IN3
FLAG -816 656 VS3
FLAG -832 816 0
FLAG -448 480 0
FLAG -384 352 IN2
FLAG -816 352 VS2
FLAG -832 512 0
FLAG -448 176 0
FLAG -384 48 IN1
FLAG -816 48 VS1
FLAG -832 208 0
FLAG -448 -128 0
FLAG -384 -256 IN0
FLAG -816 -256 VS0
FLAG -832 -96 0
FLAG 528 960 0
FLAG 976 1008 0
FLAG 976 1248 0
TEXT 600 1416 Left 3 ;Simulation Setup
TEXT 64 144 Left 2 ;Kickback Filter
TEXT 600 1456 Left 2 !.tran 0 {t_cnv*64+110u}
TEXT -184 -104 Left 2 ;OSR - Oversampling ratio\nSEQ_EN - Sequencer enable\nCNV_FREQ_NOISE - sampling frequency for noise analysis (must be 0 for transient simulations)\nCNV_CH_NOISE - sampled channel for noise analsis\nCOM_OPT: optional conversion reference COMM instead of REFGND\nHIZ: Input precharge enable
TEXT -192 88 Left 2 !.param f_cnv=1Meg\n.param t_cnv=1/f_cnv\n.param Rext=4.12k\n.param Cext=1n
TEXT 64 88 Left 2 ;Sampling Frequency
TEXT -752 2040 Left 2 ;IN7 Channel RC Kickback Filter
TEXT -952 2088 Left 2 ;IN7 Channel Stimulus
TEXT -184 -144 Left 3 ;Part parameters:
TEXT -752 1736 Left 2 ;IN6 Channel RC Kickback Filter
TEXT -952 1784 Left 2 ;IN6 Channel Stimulus
TEXT -752 1432 Left 2 ;IN5 Channel RC Kickback Filter
TEXT -952 1480 Left 2 ;IN5 Channel Stimulus
TEXT -752 1128 Left 2 ;IN4 Channel RC Kickback Filter
TEXT -952 1176 Left 2 ;IN4 Channel Stimulus
TEXT -752 824 Left 2 ;IN3 Channel RC Kickback Filter
TEXT -952 872 Left 2 ;IN3 Channel Stimulus
TEXT -752 520 Left 2 ;IN2 Channel RC Kickback Filter
TEXT -952 568 Left 2 ;IN2 Channel Stimulus
TEXT -752 216 Left 2 ;IN1 Channel RC Kickback Filter
TEXT -952 264 Left 2 ;IN1 Channel Stimulus
TEXT -752 -88 Left 2 ;IN0 Channel RC Kickback Filter
TEXT -952 -40 Left 2 ;IN0 Channel Stimulus
TEXT 600 1552 Left 2 ;.noise v(vsample) V14 dec 100 0.001u 10000000\n.measure noise NOISERMS integ V(onoise) from 0.1 to 10Meg\n.measure noise NOISEFLCIK integ V(onoise) from 0.1 to 10
TEXT 600 1512 Left 3 ;Set the following text as SPICE directive for Noise Simulation