Datasheet

AD9248
Rev. B | Page 15 of 48
CLOCK FREQUENCY (MHz)
SINAD (dBc)
72
70
74
0
68
20 40 60
SINAD –65
SINAD –40
SINAD –20
12.0
11.5
11.0
04446-022
ENOB
Figure 23. SINAD vs. FS with Nyquist Input
DUTY CYCLE (%)
85
SINAD/SFDR (dBc)
80
75
70
95
65
30
60
40 45 50 55 60 65
55
50
DCS ON (SFDR)
DCS OFF (SINAD)
DCS OFF (SFDR)
90
35
DCS ON (SINAD)
04446-023
Figure 24. SINAD/SFDR vs. Clock Duty Cycle
TEMPERATURE (°C)
80
SINAD/SFDR (dB)
78
76
74
84
72
–50
70
0 50 100
68
66
SINAD
SFDR
82
04446-024
Figure 25. SINAD/SFDR vs. Temperature with f
IN
= 32.5 MHz
SAMPLE RATE (MSPS)
500
AVDD POWER (mW)
400
300
200
600
100
0102030405060
–65
–40
–20
04446-025
Figure 26. Analog Power Consumption vs. FS
CODE
INL (LSB)
–2.5
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
2.0
2.5
800060002000 40000 10000 12000 14000 16000
04446-026
Figure 27. AD9248-65 Typical INL
CODE
DNL (LSB)
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
800060002000 40000 10000 12000 14000 16000
04446-027
Figure 28. AD9248-65 Typical DNL