AD7667 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD7667 Datasheet PDF : 28 Pages
| |||
140000
120000
100000
116794
113049
80000
60000
40000
20000
14654
15970
1
344
308
0
0
7FFE 7FFF 8000 8001 8002 8003 8004 8005
CODE IN HEX
Figure 11. Histogram of 261,120 Conversions of a
DC Input at the Code Transition
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
0
fS = 1MSPS
fIN = 101.11kHz
SNR = 88.9dB
THD = –94.2dB
SFDR = 94.7dB
S/[N+D] = 88dB
100
200
300
400
500
FREQUENCY (kHz)
Figure 12. FFT Plot
91
15.5
90
89
15.0
88
SNR
87
14.5
86
S/[N+D]
85
14.0
84
ENOB
83
13.5
82
81
13.0
1
10
100
1000
FREQUENCY (kHz)
Figure 13. SNR, S/(N+D), and ENOB vs. Frequency
AD7667
180000
160000
140000
146923
120000
100000
80000
60000
40000
56646
51940
20000
0
0
7FFE
35
7FFF
2602
8000
8001
8002
8003
2958
8004
16
8005
0
8006
CODE IN HEX
Figure 14. Histogram of 261,120 Conversions of a
DC Input at the Code Center
–70
120
–75
110
SFDR
–80
100
–85
90
–90
80
SECOND
–95
HARMONIC
70
–100
60
THD
–105
50
–110
–115
40
THIRD
HARMONIC
30
–120
1
20
10
100
1000
FREQUENCY (kHz)
Figure 15. THD, Harmonics, and SFDR vs. Frequency
91
90
SNR
S/[N+D]
89
88
–60
–50
–40
–30
–20
–10
0
INPUT LEVEL (dB)
Figure 16. SNR and S/[N+D] vs. Input Level (Referred to Full Scale)
Rev. 0 | Page 13 of 28
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