* Z:\home\khalils\Downloads\files\data\raw_asc\045526dd0ff4_AD4000_THDS_V00.asc
* Generated by LTspice 26.0.1 for Windows.
* Anti-Aliasing Filter
* Driver Supply
* ADC Supply
* ADC Driver
* Simulation Setup
* Simulation Parameters
* Anti Aliasing Filter
* Simulation cycles\nSample size\nADC reference voltage\nADC supply\nDriver VCC\nPre-charge voltage\nDC offset voltage\nSample frequency\nSample Period\nInput frequency\nInput amplitude\nMax time step\nSimulation end
* Rval1\nCval1
* Input
* Driver Parameters
* U2 Rf\nU2 Rg
* AD4000_THDS_V00
* This circuit may be used to obtain THD results for the AD4000 series pseudo differential ADC\n using the AD4002 macro-model with an AD4807-1driver in a follower configuration.\n Additional driver models may be inserted via the component menu. Schematic redraw may\n be required. Simulation results produced by the .four SPICE command may be accessed by \nview->SPICE error log and are displayed at the end of the file. For all other performance \ncharacteristics and specifications refer to the AD4000 datasheet located at\nhttps://www.analog.com/en/products/ad4000.html#product-overview
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\ADC\AD4002.asy)
* Library below included based on ModelFile attribute of instance XU2 (C:\users\khalils\AppData\Local\LTspice\lib\sym\OpAmps\ADA4807-1.asy)
V6 REF 0 {vref_val}
XU1 REF VDD ADCINP MP_01 0 N002 MP_02 MP_03 VSAMPLED AD4002 EN_Hi_Z=1 ;pnba REF)Vdd)IN))GND)CNV)))Vout
C1 ADCINP 0 {Cval1}
V9 VDD 0 {vdd_val}
V7 VCC 0 {vcc_val}
XU2 VINP N001 VCC 0 N001 VCC ADA4807 ;pnba 100)101)102)103)104)106
R1 ADCINP N001 {Rval1}
V1 VINP 0 SINE({voff} {vmag} {fin} 0 0 0)
V4 N002 0 PULSE(0 {vdd_val} 1u 1n 1n 10n {ts})
.param M=3
.param N=4096
.param vref_val=5
.param vdd_val=1.8
.param vcc_val=7.5
.param voff=vref_val/{2}
.param fs=2e6
.param ts=1/fs
.param fin= fs*M/N
.param vmag=.93*vref_val/2
.param tmax=1/(fs)
.param END_SIM=M*(1/fin)
.save v(vsampled)
.option plotwinsize=0 numdgt=15
.four {fin} 5 -1 v(vsampled)
.param Rval1=200
.param Cval1=180p
.tran 0 {END_SIM+1/fin} {1/fin}
.param Rf_val=500
.param Rg_val=500
.lib AD4002.sub
.lib ADA4807.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 3184 1508
WIRE 464 -368 352 -368
WIRE 592 -368 464 -368
WIRE 352 -288 352 -368
WIRE 352 -160 352 -208
WIRE -512 -144 -704 -144
WIRE 592 -128 592 -368
WIRE 848 -80 848 -272
WIRE 848 -80 720 -80
WIRE -608 -16 -608 -48
WIRE -704 0 -704 -144
WIRE -624 0 -704 0
WIRE -512 16 -512 -144
WIRE -512 16 -560 16
WIRE -304 16 -512 16
WIRE -144 16 -224 16
WIRE 192 16 -144 16
WIRE 352 16 192 16
WIRE 992 16 720 16
WIRE -720 32 -960 32
WIRE -624 32 -720 32
WIRE -960 64 -960 32
WIRE -144 64 -144 16
WIRE -608 80 -608 48
WIRE -576 80 -576 48
WIRE 896 112 720 112
WIRE -144 176 -144 128
WIRE -960 192 -960 144
WIRE 592 208 592 160
WIRE 896 304 896 112
WIRE -1968 416 -1968 336
WIRE -1616 416 -1616 336
WIRE 896 432 896 384
WIRE -1968 608 -1968 496
WIRE -1616 608 -1616 496
IOPIN 992 16 Out
RECTANGLE Normal -32 256 -400 -160 4
RECTANGLE Normal -1360 640 -2208 224 4
RECTANGLE Normal -416 256 -848 -160 4
RECTANGLE Normal -2208 -592 -1360 -432
RECTANGLE Normal -1360 208 -2208 -416 4
RECTANGLE Normal -864 256 -1088 -160 4
SYMBOL voltage -960 48 R0
WINDOW 0 -32 56 VBottom 2
WINDOW 3 -46 -162 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE({voff} {vmag} {fin} 0 0 0)
SYMBOL voltage -1616 400 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V9
SYMATTR Value {vdd_val}
SYMBOL cap -160 64 R0
SYMATTR InstName C1
SYMATTR Value {Cval1}
SYMBOL Opamps\\ADA4807-1 -592 16 R0
SYMATTR InstName U2
SYMBOL res -208 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value {Rval1}
SYMBOL voltage -1968 400 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V7
SYMATTR Value {vcc_val}
SYMBOL ADC\\AD4002 624 16 R0
SYMATTR InstName U1
SYMBOL voltage 896 288 R0
WINDOW 3 58 -156 VRight 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(0 {vdd_val} 1u 1n 1n 10n {ts})
SYMATTR InstName V4
SYMBOL voltage 352 -304 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V6
SYMATTR Value {vref_val}
FLAG 592 208 0
FLAG 848 -272 VDD
FLAG 192 16 ADCINP
FLAG 896 432 0
FLAG 464 -368 REF
FLAG -1968 336 VCC
FLAG -1616 336 VDD
FLAG -1616 608 0
FLAG -1968 608 0
FLAG -960 192 0
FLAG -720 32 VINP
FLAG 992 16 VSAMPLED
FLAG -144 176 0
FLAG -608 -48 VCC
FLAG -576 80 VCC
FLAG -608 80 0
FLAG 352 -160 0
TEXT -336 -184 Left 2 ;Anti-Aliasing Filter
TEXT -2040 256 Left 2 ;Driver Supply
TEXT -1688 256 Left 2 ;ADC Supply
TEXT -664 -184 Left 2 ;ADC Driver
TEXT -2176 -352 Left 2 !.param M=3\n.param N=4096\n.param vref_val=5\n.param vdd_val=1.8\n.param vcc_val=7.5\n.param voff=vref_val/{2}\n.param fs=2e6\n.param ts=1/fs\n.param fin= fs*M/N\n.param vmag=.93*vref_val/2\n.param tmax=1/(fs)\n.param END_SIM=M*(1/fin)
TEXT -2176 -456 Left 2 !.save v(vsampled)
TEXT -2176 -480 Left 2 !.option plotwinsize=0 numdgt=15
TEXT -2176 -504 Left 2 !.four {fin} 5 -1 v(vsampled)
TEXT -2176 40 Left 2 !.param Rval1=200\n.param Cval1=180p
TEXT -2184 -560 Left 3 ;Simulation Setup
TEXT -2176 -528 Left 2 !.tran 0 {END_SIM+1/fin} {1/fin}
TEXT -2176 -384 Left 3 ;Simulation Parameters
TEXT -2176 16 Left 2 ;Anti Aliasing Filter
TEXT -1704 -352 Left 2 ;Simulation cycles\nSample size\nADC reference voltage\nADC supply\nDriver VCC\nPre-charge voltage\nDC offset voltage\nSample frequency\nSample Period\nInput frequency\nInput amplitude\nMax time step\nSimulation end
TEXT -1704 32 Left 2 ;Rval1\nCval1
TEXT -1088 -184 Left 2 ;Input
TEXT -2176 112 Left 2 ;Driver Parameters
TEXT -2176 136 Left 2 !.param Rf_val=500\n.param Rg_val=500
TEXT -1704 128 Left 2 ;U2 Rf\nU2 Rg
TEXT -2208 -840 Left 4 ;AD4000_THDS_V00
TEXT -2208 -800 Left 2 ;This circuit may be used to obtain THD results for the AD4000 series pseudo differential ADC\n using the AD4002 macro-model with an AD4807-1driver in a follower configuration.\n Additional driver models may be inserted via the component menu. Schematic redraw may\n be required. Simulation results produced by the .four SPICE command may be accessed by \nview->SPICE error log and are displayed at the end of the file. For all other performance \ncharacteristics and specifications refer to the AD4000 datasheet located at\nhttps://www.analog.com/en/products/ad4000.html#product-overview