AD9237 Analog Devices, AD9237 Datasheet - Page 13

• Manufacturer Part Number: AD9237
• Description: 12-Bit, 20/40/65 MSPS 3 V Low Power A/D Converter
• Manufacturer: Analog Devices

Specifications of AD9237

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 65MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: 1 V p-p,2 V p-p,4 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

Figure 20. AD9237-65 Two-Tone FFT, f
Figure 22. AD9237-65 Two-Tone FFT, f
–100
–120
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
0
SNR = 67.0dBFS
SFDR = 87.8dBFS
Figure 21. AD9237-40 Two-Tone FFT
5
5
f
IN1
5
= 45 MHz, f
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
15
15
IN2
10
= 46 MHz
IN1
IN1
= 45 MHz, f
= 69 MHz, f
20
20
SNR = 67.2dBFS
SFDR = 88.3dBFS
SNR = 66.9dBFS
SFDR = 84.1dBFS
15
25
25
IN2
IN2
= 46 MHz
= 70 MHz
30 32.5
3
0
2
0
Rev. A | Page 13 of 24
Figure 23. AD9237-65 Two-Tone SNR/SFDR , vs. Analog Input with
Figure 24. AD9237-40 Two-Tone SNR/SFDR , vs. Analog Input with
Figure 25. AD9237-65 Two-Tone SNR/SFDR vs. Analog Input with
100
100
100
90
80
70
60
50
40
30
90
80
70
60
50
40
30
90
80
70
60
50
40
30
–30
–30
–30
SFDR dBFS
SNR dBFS
SFDR dBc
SNR dBc
SFDR dBFS
SNR dBFS
SFDR dBc
SNR dBc
SFDR dBFS
SNR dBFS
SFDR dBc
SNR dBc
–25
–25
–25
f
f
f
IN1
IN1
IN1
= 45 MHz, f
= 45 MHz, f
= 69 MHz, f
INPUT AMPLITUDE (AIN)
INPUT AMPLITUDE (AIN)
INPUT AMPLITUDE (AIN)
–20
–20
–20
IN2
IN2
IN2
= 46 MHz
= 46 MHz
= 70 MHz
–15
–15
–15
–10
–10
–10
AD9237
–6.5
–6.5
–6.5