EVAL-AD7621CB View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'EVAL-AD7621CB' PDF : 32 Pages View PDF
0
–20
ffSIN==32M0S.1PkSHz
SNR = 90.1dB
THD = –103.2dB
–40
SFDR = 103.8dB
SINAD = 89.9dB
–60
–80
–100
–120
–140
–160
–180
0
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500
FREQUENCY (kHz)
Figure 12. FFT 20 kHz
95
16.0
93
15.6
91
15.2
SNR
89
14.8
87
14.4
SINAD
85
14.0
ENOB
83
13.6
81
13.2
79
12.8
77
12.4
75
12.0
1
10
100
1000
FREQUENCY (kHz)
Figure 13. SNR, SINAD and ENOB vs. Frequency
–70
120
–75
110
SFDR
–80
100
–85
90
–90
80
–95
70
–100
–105
–110
–115
–120
1
THD
THIRD
HARMONIC
SECOND
HARMONIC
10
100
FREQUENCY (kHz)
60
50
40
30
20
1000
Figure 14. THD, Harmonics, and SFDR vs. Frequency
AD7621
0
–20
ffSIN==39M8S.7P9SkHz
SNR = 89.9dB
THD = –104.9dB
–40
SFDR = 106.6dB
SINAD = 89.8dB
–60
–80
–100
–120
–140
–160
–180
0
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500
FREQUENCY (kHz)
Figure 15. FFT 100 kHz
92
16.0
91
SNR
90
15.5
SINAD
89
88
15.0
87
ENOB
86
14.5
85
84
–55 –35 –15
5
25 45 65
TEMPERATURE (ï‚°C)
14.0
85 105 125
Figure 16. SNR, SINAD, and ENOB vs. Temperature
–80
110
SFDR
–85
105
–90
100
–95
95
–100
90
THD
–105
85
–110
80
–115
THIRD HARMONIC
75
–120 SECOND HARMONIC
70
–125
65
–130
–55 –35 –15
5
25 45 65
TEMPERATURE (ï‚°C)
60
85 105 125
Figure 17. THD, Harmonics, and SFDR vs. Temperature
Rev. A | Page 13 of 32
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