AD9238 Analog Devices, AD9238 Datasheet - Page 13

• 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

–100
–120
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
Figure 19. Dual-Tone FFT with f
Figure 17. Dual-Tone FFT with f
Figure 18. Dual-Tone FFT with f
0
0
0
0
0
0
5
5
5
10
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
15
15
15
IN
IN
IN
1 = 200 MHz and f
1 = 45 MHz and f
1 = 70 MHz and f
20
20
20
25
25
25
IN
IN
IN
2 = 46 MHz
2 = 71 MHz
2 = 201 MHz
30
30
30
Rev. C | Page 13 of 48
Figure 20. Dual-Tone SNR/SFDR vs. AIN with f
Figure 21. Dual-Tone SNR/SFDR vs. AIN with f
100
100
100
65
60
60
65
60
95
90
85
80
75
70
95
90
85
80
75
70
65
95
90
85
80
75
70
–24
–24
–24
AIN with f
–21
–21
–21
Figure 22. Dual-Tone SNR/SFDR vs.
INPUT AMPLITUDE (dBFS)
IN
SNR
INPUT AMPLITUDE (dBFS)
INPUT AMPLITUDE (dBFS)
SNR
SNR
SNR
SFDR
SNR
SFDR
–18
SNR
–18
SNR
SFDR
SNR
–18
1 = 200 MHz and f
–15
–15
–15
IN
IN
IN
–12
1 = 45 MHz and f
–12
1 = 70 MHz and f
–12
2 = 201 MHz
–9
–9
–9
AD9238
IN
IN
2 = 46 MHz
2 = 71 MHz
–6
–6
–6