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AD7621 データシート(PDF) 13 Page - Analog Devices

部品番号 AD7621
部品情報  16-Bit, 1.5 LSB INL, 2 MSPS PulSAR ADC
PDF  28 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
Logo AD - Analog Devices

AD7621 データシート(HTML) 13 Page - Analog Devices

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AD7622
Rev. 0 | Page 13 of 28
0
–140
–120
–100
–80
–60
–40
–20
–160
–180
0
100
200
300
400
500
600
700
800
900 1000
FREQUENCY (kHz)
fS = 2MSPS
fIN = 20.1kHz
SNR = 92dB
THD = –117dB
SFDR = 103dB
SINAD = 92dB
Figure 12. FFT 20 kHz
95
79
81
83
85
87
89
91
93
77
75
16.0
12.8
13.2
13.6
14.0
14.4
14.8
15.2
15.6
12.4
12.0
1
10
100
1000
FREQUENCY (kHz)
SNR
ENOB
SINAD
Figure 13. SNR, SINAD, and ENOB vs. Frequency
–70
–80
–90
–100
–110
–120
–130
–140
120
40
50
60
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80
90
100
110
30
20
1
10
100
1000
FREQUENCY (kHz)
SECOND HARMONIC
THIRD HARMONIC
THD
SFDR
Figure 14. THD, Harmonics, and SFDR vs. Frequency
0
–140
–120
–100
–80
–60
–40
–20
–160
–180
0
100
200
300
400
500
600
700
800
900 1000
FREQUENCY (kHz)
fS = 2MSPS
fIN =100.7kHz
SNR = 91dB
THD = –100dB
SFDR = 101dB
SINAD = 90.5dB
Figure 15. FFT 100 kHz
TEMPERATURE (°C)
–55
–35
–15
5
25
45
65
85
105
125
14.0
14.5
15.0
15.5
16.0
86
87
90
89
88
91
92
93
94
SNR
ENOB
SINAD
Figure 16. SNR, SINAD, and ENOB vs. Temperature
TEMPERATURE (°C)
–55
–35
–15
5
25
45
65
85
105
125
SFDR
THD
SECOND
HARMONIC
THIRD
HARMONIC
60
70
80
90
100
110
120
–140
–130
–120
–110
–100
–90
–80
Figure 17. THD, Harmonics, and SFDR vs. Temperature



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