AD9257 Analog Devices, AD9257 Datasheet - Page 12

• Manufacturer Part Number: AD9257
• Description: Octal, 14-Bit, 40/65 MSPS Serial LVDS 1.8 V A/D Converter
• Manufacturer: Analog Devices

AD9257
Figure 13. SNR/SFDR vs. Analog Input Level, f
–100
–120
Figure 12. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with
–20
–40
–60
–80
120
100
105
100
80
60
40
20
95
90
85
80
75
70
0
0
–90
–90
20
f
IN1
Figure 14. SNR/SFDR vs. Encode, f
–80
= 30 MHz and f
–78
SFDR (dBFS)
IMD3 (dBc)
–70
30
–66
SAMPLE FREQUENCY (MSPS)
SFDRFS
INPUT AMPLITUDE (dBFS)
INPUT AMPLITUDE (dBFS)
–60
SFDR (dBc)
SNRFS
SFDR
SNRFS
IN2
SFDR
–54
IMD3 (dBFS)
SNR
= 32 MHz, f
–50
40
–40
–42
IN
SAMPLE
= 9.7 MHz, f
–30
IN
= 19.7 MHz
–30
= 65 MSPS
50
–20
–18
SAMPLE
–10
= 65 MSPS
–6
60
0
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Figure 15. SNR/SFDR vs. Temperature, f
110
100
105
100
90
80
70
60
50
40
30
20
10
105
100
95
90
85
80
75
70
0
95
90
85
80
75
70
–40
0
20
Figure 17. SNR/SFDR vs. Encode, f
20
Figure 16. SNR/SFDR vs. f
SNR (dBFS)
SFDR (dBc)
40
–15
SFDR (dBc)
SNR (dBFS)
30
SAMPLE FREQUENCY (MSPS)
60
INPUT FREQUENCY (MHz)
SNRFS
SFDR
TEMPERATURE (°C)
80
10
100
40
IN
, f
IN
120
SAMPLE
= 9.7 MHz, f
35
IN
140
= 65 MSPS
= 30.5 MHz
50
160
Data Sheet
60
SAMPLE
180
= 65 MSPS
200
85
60