AD9239 Analog Devices, AD9239 Datasheet - Page 12

• Manufacturer Part Number: AD9239
• Description: Quad, 12-Bit, 170 MSPS/210 MSPS/250 MSPS Serial Output 1.8 V ADC
• Manufacturer: Analog Devices

Specifications of AD9239

• Resolution (bits): 12bit
• # Chan: 4
• Sample Rate: 250MSPS
• Interface: Ser
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: 1.25 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9239
Figure 10. Single-Tone 32k FFT with f
Figure 11. Single-Tone 32k FFT with f
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
70
69
68
67
66
65
64
63
62
61
60
0
0
50
0
0
70
Figure 12. SNR vs. Encode, f
20
20
90
170MSPS
110
40
40
FREQUENCY (MHz)
FREQUENCY (MHz)
ENCODE (MSPS)
130
250MSPS
150
60
60
IN
IN
= 171.3 MHz, f
= 240.3 MHz, f
210MSPS
170
IN
= 84.3 MHz
80
80
190
AIN = –1.0dBFS
SNR = 63.90dB
ENOB = 10.32 BITS
SFDR = 73.10dBc
AIN = –1.0dBFS
SNR = 63.41dB
ENOB = 10.24 BITS
SFDR = 77.49dBc
210
100
SAMPLE
100
SAMPLE
230
= 250 MSPS
= 250 MSPS
120
120
250
Rev. B | Page 12 of 40
Figure 14. SNR/SFDR vs. Analog Input Level, f
Figure 15. SNR/SFDR vs. Analog Input Level, f
100
100
90
88
86
84
82
80
78
76
74
72
70
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
50
–90
–90
70
–80
–80
Figure 13. SFDR vs. Encode, f
170MSPS
SFDR (dBFS)
90
SNR (dBFS)
–70
–70
SFDR (dB)
SFDR (dB)
ANALOG INPUT LEVEL (dBFS)
ANALOG INPUT LEVEL (dBFS)
SNR (dBFS)
110
SFDR (dBFS)
–60
–60
ENCODE (MSPS)
130
–50
–50
150
210MSPS
–40
–40
170
IN
IN
SNR (dB)
SNR (dB)
IN
= 84.3 MHz, f
= 84.3 MHz, f
= 84.3 MHz
–30
–30
190
250MSPS
–20
–20
210
SAMPLE
SAMPLE
230
–10
–10
= 170 MSPS
= 210 MSPS
250
0
0