Datasheet

AD9260
Rev. C | Page 16 of 44
TYPICAL AC CHARACTERIZATION CURVES FOR 8× MODE
AVDD = DVDD = DRVDD = +5 V, 4 V Input Span, Differential DC Coupled Input with CML = 2 V, Full Bias.
60
65
70
75
80
85
90
SINAD (dB)
INPUT FREQUENCY (MHz)
0.1 1.0
00581-C-023
–6.0dBFS
–0.5dBFS
–20dBFS
Figure 23. SINAD vs. Input Frequency (f
CLOCK
= 20 MSPS) SINAD performance
limited by noise contribution of input differential op amp driver.
–110
–105
–100
–95
–90
–85
THD (dB)
–80
–75
–70
INPUT FREQUENCY (MHz)
0.1 1.0
00581-C-024
–6.0dBFS
–0.5dBFS
–20dBFS
Figure 24. THD vs. Input Frequency (f
CLOCK
= 20 MSPS)
80
85
90
95
100
105
SFDR (dBc)
INPUT FREQUENCY (MHz)
0.1 1.0
00581-C-025
–6.0dBFS
–0.5dBFS
–20dBFS
Figure 25. SFDR vs. Input Frequency (f
CLOCK
= 20 MSPS)
60
65
70
75
80
85
90
SINAD (dB)
INPUT FREQUENCY (MHz)
0.1 1.0
00581-C-026
–6.0dBFS
–0.5dBFS
–20dBFS
Figure 26. SINAD vs. Input Frequency (f
CLOCk
- = 10 MSPS)
–105
–100
–95
–90
–85
–80
–75
–70
THD (dB)
INPUT FREQUENCY (MHz)
0.1 1.0
00581-C-027
–6.0dBFS
–0.5dBFS
–20dBFS
Figure 27. THD vs. Input Frequency (f
CLOCK
= 10 MSPS)
80
85
90
95
100
105
SFDR (dBc)
INPUT FREQUENCY (MHz)
0.1 1.0
00581-C-028
–6.0dBFS
–0.5dBFS
–20dBFS
Figure 28. SFDR vs. Input Frequency (f
CLOCK
= 10 MSPS)