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AD4021 데이터시트(PDF) 13 Page - Analog Devices

부품명 AD4021
상세설명  20-Bit, 1.8 MSPS/1 MSPS/500 kSPS, Easy Drive, Differential SAR ADCs
PDF  39 Pages
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제조업체  AD [Analog Devices]
홈페이지  http://www.analog.com
Logo AD - Analog Devices

AD4021 데이터시트(HTML) 13 Page - Analog Devices

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Data Sheet
AD4020/AD4021/AD4022
Rev. B | Page 13 of 39
102
96
90
100
92
94
98
88
17.0
15.5
16.5
14.5
15.0
16.0
14.0
1k
100k
10k
900k
INPUT FREQUENCY (Hz)
ENOB
SINAD
SNR
Figure 17. SNR, SINAD, and Effective Number of Bits (ENOB) vs. Input
Frequency
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 18. SNR, SINAD, and ENOB vs. Reference Voltage, fIN = 1 kHz
100.8
100.0
100.4
100.6
100.2
99.6
99.8
99.4
16.42
16.22
16.24
16.26
16.28
16.30
16.32
16.34
16.36
16.38
16.40
TEMPERATURE (°C)
ENOB
SINAD
SNR
–40
100
80
60
40
20
0
–20
120
Figure 19. SNR, SINAD, and ENOB vs. Temperature, fIN = 1 kHz
–90
–105
–95
–115
–110
–100
–120
120
105
115
95
100
110
90
1k
100k
10k
900k
INPUT FREQUENCY (Hz)
THD
SFDR
Figure 20. THD and SFDR vs. Input Frequency
–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 21. THD and SFDR vs. Reference Voltage, fIN = 1 kHz
–114.0
–114.5
–116.5
–115.5
–115.0
–116.0
–117.0
–117.5
118.0
117.9
117.4
117.7
117.8
117.6
117.2
117.3
117.5
117.1
117.0
–40
100
80
60
40
20
0
–20
120
TEMPERATURE (°C)
THD
SFDR
Figure 22. THD and SFDR vs. Temperature, fIN = 1 kHz



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