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AD7631BSTZ 数据表(PDF) 13 Page - Analog Devices

部件名 AD7631BSTZ
功能描述  18-Bit, 250 kSPS, Differential Programmable Input PulSAR짰 ADC
PDF  32 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7631BSTZ 数据表(HTML) 13 Page - Analog Devices

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AD7631
Rev. A | Page 13 of 32
0
–180
0
FREQUENCY (kHz)
200
250
300
50
100
150
–20
–40
–60
–80
–100
–120
–140
–160
fS = 250kSPS
fIN = 20.1kHz
SNR = 98.3dB
THD = –116.8dB
SFDR = 121dB
SINAD = 97.8dB
Figure 11. FFT 20 kHz, Bipolar 5 V Range, Internal Reference
80
82
84
86
88
90
92
94
96
98
100
1
10
100
1000
13.0
13.5
14.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
SNR
SINAD
ENOB
FREQUENCY (kHz)
Figure 12. SNR, SINAD, and ENOB vs. Frequency, Unipolar 5 V Range
TEMPERATURE (°C)
97
98
99
100
101
102
103
–55
–35
–15
5
25
45
65
85
105
125
0V TO 10V
0V TO 5V
±5V
±10V
Figure 13. SNR vs. Temperature
INPUT LEVEL (dB)
100.0
100.5
101.0
101.5
102.0
102.5
103.0
–60
–50
–40
–30
–20
–10
0
±10V
±5V
0V TO 10V
0V TO 5V
SNR
SINAD
Figure 14. SNR and SINAD vs. Input Level (Referred to Full Scale)
1
10
100
1000
FREQUENCY (kHz)
0
20
40
60
80
100
120
140
SFDR
THD
SECOND
HARMONIC
THIRD
HARMONIC
–140
–130
–120
–110
–100
–90
–80
–70
Figure 15. THD, Harmonics, and SFDR vs. Frequency, Unipolar 5 V Range
TEMPERATURE (°C)
–55
–35
–15
5
25
45
65
85
105
125
97
98
99
100
101
102
103
0V TO 10V
0V TO 5V
±5V
±10V
Figure 16. SINAD vs. Temperature



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