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AD4002 Datasheet(PDF) 14 Page - Analog Devices

Part # AD4002
Description  18-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs
PDF  39 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD4002 Datasheet(HTML) 14 Page - Analog Devices

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AD4002/AD4006/AD4010
Data Sheet
Rev. A | Page 14 of 39
130
95
100
105
110
115
120
125
1
4
16
64
256
1024
2
8
32
128
512
DECIMATION RATE
fIN = 10kHz
fIN = 1kHz
DYNAMIC RANGE
Figure 23. SNR vs. Decimation Rate for Various Input Frequencies, 2 MSPS
96
91
92
93
94
95
0
20406080
100
tQUIET2 (ns)
VIO = 5.5V
VIO = 3.6V
VIO = 1.89V
Figure 24. SINAD vs. tQUIET2
TIME (Seconds)
024
68
10
948
949
950
951
952
953
954
955
Figure 25. 1/f Noise for 0.1 Hz to 10 Hz Bandwidth, 50 kSPS,
2500 Samples Averaged per Reading
–75
–125
–120
–110
–100
–80
–115
–105
–90
–85
–95
500
5k
15k
1k
10k
20k
25k
INPUT FREQUENCY (kHz)
100Ω HIGH-Z ENABLED
100Ω HIGH-Z DISABLED
1kΩ HIGH-Z ENABLED
1kΩ HIGH-Z DISABLED
499Ω HIGH-Z ENABLED
499Ω HIGH-Z DISABLED
Figure 26. THD vs. Input Frequency for Various Source Impedances
1
0
–8
–7
–5
–3
–1
–6
–4
–2
–40
0
40
80
–20
20
60
100
120
TEMPERATURE (°C)
ZERO ERROR
GAIN ERROR
Figure 27. Zero Error and Gain Error vs. Temperature
–25
–20
–15
–10
–5
0
5
10
15
20
25
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
INPUT DIFFERENTIAL VOLTAGE (V)
HIGH-Z DISABLED, 2MSPS
HIGH-Z DISABLED, 1MSPS
HIGH-Z DISABLED, 500kSPS
HIGH-Z ENABLED, 2MSPS
HIGH-Z ENABLED, 1MSPS
HIGH-Z ENABLED, 500kSPS
Figure 28. Analog Input Current vs. Input Differential Voltage



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