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AD7621 数据表(PDF) 13 Page - Analog Devices

部件名 AD7621
功能描述  16-Bit, 2 LSB INL, 3 MSPS 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

AD7621 数据表(HTML) 13 Page - Analog Devices

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AD7621
Rev. 0 | Page 13 of 32
FREQUENCY (kHz)
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
0
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500
fS = 3MSPS
fIN = 20.1kHz
SNR = 90.1dB
THD = –103.2dB
SFDR = 103.8dB
SINAD = 89.9dB
Figure 11. FFT 20 kHz
FREQUENCY (kHz)
75
77
79
81
83
85
87
89
91
93
95
12.0
12.4
12.8
13.2
13.6
14.0
14.4
14.8
15.2
15.6
16.0
1
10
100
1000
SNR
ENOB
SINAD
Figure 12. SNR, SINAD and ENOB vs. Frequency
FREQUENCY (kHz)
–120
–115
–110
–105
–100
–95
–90
–85
–80
–75
–70
20
30
40
50
60
70
80
90
100
110
120
1
10
100
1000
THD
SFDR
THIRD
HARMONIC
SECOND
HARMONIC
Figure 13. THD, Harmonics, and SFDR vs. Frequency
FREQUENCY (kHz)
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
0
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500
fS = 3MSPS
fIN = 98.79kHz
SNR = 89.9dB
THD = –104.9dB
SFDR = 106.6dB
SINAD = 89.8dB
Figure 14. FFT 100 kHz
TEMPERATURE (
°C)
84
92
91
90
89
88
87
86
85
14.0
16.0
15.5
15.0
14.5
–55
–35
–15
125
105
85
65
45
25
5
SNR
SINAD
ENOB
Figure 15. SNR, SINAD, and ENOB vs. Temperature
TEMPERATURE (
°C)
–130
–80
–85
–90
–95
–100
–105
–110
–115
–120
–125
60
110
105
100
95
90
85
80
75
70
65
–55
–35
–15
125
105
85
65
45
25
5
THIRD HARMONIC
SECOND HARMONIC
SFDR
THD
Figure 16. THD, Harmonics, and SFDR vs. Temperature



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