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AD4022BCPZ-R2 数据表(PDF) 14 Page - Analog Devices

部件名 AD4022BCPZ-R2
功能描述  20-Bit, 1.8 MSPS/1 MSPS/500 kSPS, Easy Drive, Differential SAR ADCs
PDF  39 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD4022BCPZ-R2 数据表(HTML) 14 Page - Analog Devices

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AD4020/AD4021/AD4022
Data Sheet
Rev. B | Page 14 of 39
95
100
105
110
115
120
125
130
135
140
0
2
4
8
16
32
64
128 256 512 1024
DECIMATION RATE
DYNAMIC RANGE
fIN = 1kHz
fIN = 10kHz
Figure 23. SNR vs. Decimation Rate for Various Input Frequencies, 1.8 MSPS
93
94
95
96
97
98
99
100
101
0
10
20304050
60
7080
tQUIET2 (ns)
VIO = 5.5V
VIO = 3.6V
VIO = 1.89V
Figure 24. SINAD vs. tQUIET2
60
58
55
56
59
57
54
09
8
567
4
3
2
110
TIME (Seconds)
Figure 25. 1/f Noise for 0.1 Hz to 10 Hz Bandwidth, 50 kSPS, 2500 Samples
Averaged per Reading
–85
–90
–100
–110
–95
–105
–115
–120
–125
1
10
20
INPUT FREQUENCY (KHz)
1kΩ HIGH-Z DISABLED
1kΩ HIGH-Z ENABLED
510Ω HIGH-Z DISABLED
510Ω HIGH-Z ENABLED
150Ω HIGH-Z DISABLED
150Ω HIGH-Z ENABLED
Figure 26. THD vs. Input Frequency for Various Source Impedances
–6
–4
–2
0
2
4
6
8
10
TEMPERATURE (°C)
–40
100
80
60
40
20
0
–20
120
ZERO ERROR
PFS GAIN ERROR
NFS GAIN ERROR
Figure 27. Zero Error and Gain Error vs. Temperature (PFS Is Positive Full
Scale and NFS Is Negative Full Scale)
18
6
–12
–6
12
15
0
3
–9
9
–3
–15
–5
3
1
–1
–3
5
INPUT DIFFERENTIAL VOLTAGE (V)
25°C HIGH-Z DISABLED, 1.8MSPS
25°C HIGH-Z DISABLED, 1MSPS
25°C HIGH-Z DISABLED, 500MSPS
25°C HIGH-Z ENABLED, 1.8MSPS
25°C HIGH-Z ENABLED, 1MSPS
25°C HIGH-Z ENABLED, 500MSPS
Figure 28. Analog Input Current vs. Input Differential Voltage



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