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AD7641BSTZ Datasheet(PDF) 14 Page - Analog Devices

Part # AD7641BSTZ
Description  18-Bit, 2 MSPS SAR ADC
PDF  29 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7641BSTZ Datasheet(HTML) 14 Page - Analog Devices

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AD7641
Rev. 0 | Page 13 of 28
FREQUENCY (kHz)
0
–180
01000
–20
–40
–60
–80
–100
–120
–140
–160
100
200
300
400
500
600
700
800
900
fS = 2MSPS
fIN = 20.1kHz
SNR = 93.6dB
THD = –116dB
SFDR = 112dB
SINAD = 93.5dB
0
–180
01000
FREQUENCY (kHz)
Figure 11. FFT 20 kHz
95
75
1
1000
FREQUENCY (kHz)
93
91
89
87
85
83
81
79
77
16.0
12.0
15.6
15.2
14.8
14.4
14.0
13.6
13.2
12.8
12.4
10
ENOB
SINAD
SNR
100
Figure 12. SNR, SINAD, and ENOB vs. Frequency
–70
–140
1
1000
FREQUENCY (kHz)
–80
–90
–100
–110
–120
–130
120
20
110
100
90
80
70
60
50
40
30
10
100
SFDR
THD
THIRD
HARMONIC
SECOND
HARMONIC
Figure 13. THD, Harmonics, and SFDR vs. Frequency
fS = 2MSPS
fIN = 100.8kHz
SNR = 93dB
THD = –101dB
SFDR = 101dB
SINAD = 92.5dB
–20
–40
–60
–80
–100
–120
–140
–160
100
200
300
400
500
600
700
800
900
Figure 14. FFT 100 kHz
95
90
–55
125
TEMPERATURE (°C)
94
93
92
91
19
14
18
17
16
15
–35
–15
5
25
45
65
85
105
SNR
ENOB
SINAD
Figure 15. SNR, SINAD, and ENOB vs. Temperature
–90
–140
–55
125
TEMPERATURE (°C)
–95
–100
–105
–110
–115
–120
–125
–130
–135
120
70
115
110
105
100
95
90
85
80
75
–35
–15
5
25
45
65
85
105
SFDR
THD
THIRD
HARMONIC
SECOND
HARMONIC
Figure 16. THD, Harmonics, and SFDR vs. Temperature



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