AD7641ACP 查看數據表（PDF） - Analog Devices
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AD7641ACP Datasheet PDF : 28 Pages
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0
fS = 2MSPS
–20
fIN = 20.1kHz
SNR = 93.6dB
THD = –116dB
–40
SFDR = 112dB
SINAD = 93.5dB
–60
–80
–100
–120
–140
–160
–180
0
100 200 300 400 500 600 700 800 900 1000
FREQUENCY (kHz)
Figure 11. FFT 20 kHz
95
16.0
93
ENOB
91
SINAD
15.6
SNR
15.2
89
14.8
87
14.4
85
14.0
83
13.6
81
13.2
79
12.8
77
12.4
75
12.0
1
10
100
1000
FREQUENCY (kHz)
Figure 12. SNR, SINAD, and ENOB vs. Frequency
–70
120
SFDR
110
–80
100
–90
90
–100
–110
–120
–130
–140
1
80
70
60
THD
50
THIRD
HARMONIC
40
SECOND
HARMONIC
10
100
30
20
1000
FREQUENCY (kHz)
Figure 13. THD, Harmonics, and SFDR vs. Frequency
AD7641
0
fS = 2MSPS
–20
fIN = 100.8kHz
SNR = 93dB
THD = –101dB
–40
SFDR = 101dB
SINAD = 92.5dB
–60
–80
–100
–120
–140
–160
–180
0
100 200 300 400 500 600 700 800 900 1000
FREQUENCY (kHz)
Figure 14. FFT 100 kHz
95
19
SNR
94
18
93
17
92
ENOB
91
16
SINAD
15
90
–55
–35 –15 5
14
25 45 65 85 105 125
TEMPERATURE (°C)
Figure 15. SNR, SINAD, and ENOB vs. Temperature
–90
120
–95
SFDR
115
–100
110
–105
105
–110
THD
THIRD
HARMONIC
100
–115
95
–120
90
–125
–130
–135
85
SECOND
HARMONIC
80
75
–140
–55 –35 –15 5
70
25 45 65 85 105 125
TEMPERATURE (°C)
Figure 16. THD, Harmonics, and SFDR vs. Temperature
Rev. 0 | Page 13 of 28
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