
AD9238
–11–
CLOCK FREQUENCY
S
72
70
74
0
68
20
40
60
SINAD –65
SINAD –40
SINAD –20
12.0
11.5
11.0
TPC 19. SINAD vs. FS with Nyquist Input
DUTY CYCLE – %
85
S
80
75
70
95
65
30
60
40
45
50
55
60
65
55
50
DCS ON – SINAD
DCS ON – SFDR
DCS OFF – SINAD
DCS OFF – SFDR
90
35
TPC 20. SINAD/SFDR vs. Clock Duty Cycle
TEMPERATURE –
C
80
S
78
76
74
84
72
–50
70
0
50
100
68
66
SINAD
SFDR
82
TPC 21. SINAD/SFDR vs. Temperature with f
IN
= 32.5 MHz
SAMPLE RATE – MSPS
500
A
400
300
200
600
100
0
10
20
30
40
50
60
–65
–40
–20
TPC 22. Analog Power Consumption vs. FS
CODE
0.6
–0.8
I
0.4
0.2
0
–0.2
–0.4
–0.6
0.8
1.0
–1.0
1500
1000
500
0
2000
2500
3000
3500
4000
TPC 23. AD9238-65 Typical INL
CODE
0.6
–0.8
D
0.4
0.2
0
–0.2
–0.4
–0.6
0.8
1.0
–1.0
1500
1000
500
0
2000
2500
3000
3500
4000
TPC 24. AD9238-65 Typical DNL
REV. A