AD9238 Analog Devices, AD9238 Datasheet - Page 14

• Manufacturer Part Number: AD9238
• Description: Dual 12-Bit, 20/40/65 MSPS, 3 V ADC
• Manufacturer: Analog Devices

Specifications of AD9238

• Resolution (bits): 12bit
• # Chan: 2
• Sample Rate: 65MSPS
• Interface: Par
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (2Vref) p-p,1 V p-p,2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP,QFP

AD9238
74
72
70
68
95
90
85
80
75
70
65
60
55
50
84
82
80
78
76
74
72
70
68
66
Figure 25. SINAD/SFDR vs. Temperature with f
30
–50
0
SINAD –20
Figure 24. SINAD/SFDR vs. Clock Duty Cycle
35
Figure 23. SINAD vs. FS with Nyquist Input
DCS OFF (SFDR)
40
20
CLOCK FREQUENCY
0
TEMPERATURE (°C)
DUTY CYCLE (%)
SINAD –40
SFDR
45
SINAD
DCS ON (SFDR)
50
DCS OFF (SINAD)
40
50
DCS ON (SINAD)
55
IN
SINAD –65
= 32.5 MHz
60
60
100
65
12.0
11.5
11.0
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–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
–0.8
–1.0
600
500
400
300
200
100
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
0
0
0
0
0
500
500
Figure 26. Analog Power Consumption vs. FS
10
–20
Figure 28. AD9238-65 Typical DNL
Figure 27. AD9238-65 Typical INL
1000
1000
20
SAMPLE RATE (MSPS)
–40
1500
1500
30
CODE
CODE
2000
2000
2500
2500
40
–65
3000
3000
50
3500
3500
60
4000
4000