AD9257 Analog Devices, AD9257 Datasheet - Page 15

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

Data Sheet
Figure 27. SNR/SFDR vs. Analog Input Level, f
Figure 29. SNR/SFDR vs. Temperature, f
120
100
105
100
105
100
80
60
40
20
95
90
85
80
75
70
95
90
85
80
75
70
–90
0
–40
20
Figure 28. SNR/SFDR vs. Encode, f
–80
SFDR (dBc)
SNR (dBFS)
–15
–70
25
SAMPLE FREQUENCY (MSPS)
SFDRFS
INPUT AMPLITUDE (dBFS)
–60
SFDR
TEMPERATURE (°C)
SNRFS
SNRFS
SNR
SFDR
10
–50
30
–40
IN
= 9.7 MHz, f
35
IN
= 9.7 MHz, f
–30
IN
= 19.7 MHz
35
–20
60
SAMPLE
SAMPLE
–10
= 40 MSPS
= 40 MSPS
40
85
0
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500,000
450,000
400,000
350,000
300,000
250,000
200,000
150,000
100,000
110
100
50,000
90
80
70
60
50
40
30
20
10
105
100
Figure 32. Input-Referred Noise Histogram, f
0
95
90
85
80
75
70
0
20
0
Figure 31. SNR/SFDR vs. Encode, f
20
Figure 30. SNR/SFDR vs. f
40
SFDR (dBc)
SNR (dBFS)
25
SAMPLE FREQUENCY (MSPS)
60
INPUT FREQUENCY (MHz)
SNRFS
SFDR
80
OUTPUT CODE
100
30
IN
, f
120
SAMPLE
IN
140
= 40 MSPS
= 30.5 MHz
SAMPLE
35
160
0.846 LSB RMS
= 40 MSPS
180
AD9257
200
40