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AD4020 Datasheet(PDF) 13 Page - Analog Devices

Part # AD4020
Description  Precision SAR, Differential ADC
PDF  37 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD4020 Datasheet(HTML) 13 Page - Analog Devices

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AD4020
Data Sheet
Rev. A | Page 12 of 36
102
97
99
100
101
98
95
96
94
16.6
15.4
15.6
15.8
16.0
16.2
16.4
2.4
4.8
4.5
3.9
4.2
3.6
3.3
3.0
2.7
5.1
REFERENCE VOLTAGE (V)
ENOB
SINAD
SNR
Figure 17. SNR, SINAD, and ENOB vs. Reference Voltage
60
58
55
56
59
57
54
0
9
8
5
6
7
4
3
2
1
10
TIME (Seconds)
Figure 18. 1/f Noise for 0.1 Hz to 10 Hz Bandwidth, 50 kSPS, 2500 Samples
Averaged per Reading
95
100
105
110
115
120
125
130
135
140
0
2
4
8
16
32
64
128
256
512 1024
DECIMATION RATE
DR
fIN = 1kHz
fIN = 10kHz
Figure 19. SNR vs. Decimation Rate for Various Input Frequencies
–114
–124
–120
–118
–116
–122
–128
–126
–130
133
126
127
128
130
129
131
132
2.4
4.8
4.5
3.9
4.2
3.6
3.3
3.0
2.7
5.1
REFERENCE VOLTAGE (V)
SFDR
THD
Figure 20. THD and SFDR vs. Reference Voltage
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.4
2.7
3.0
3.3
3.6
3.9
4.2
4.5
4.8
5.1
REFERENCE VOLTAGE (V)
Figure 21. Reference Current vs. Reference Voltage
T
93
94
95
96
97
98
99
100
101
0
10
20
30
40
50
60
70
80
tQUIET2 (ns)
VIO = 5.5V
VIO = 3.6V
VIO = 1.89V
Figure 22. SINAD vs. tQUIET2



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