AD9260ASZ datasheet(16/45 Pages) AD

16 / 45 page

AD9260

Rev. C | Page 15 of 44

TYPICAL AC CHARACTERIZATION CURVES VS. DECIMATION MODE

AVDD = DVDD = DRVDD = +5 V, 4 V Input Span, Differential DC Coupled Input with CML = 2 V, AIN = 0.5 dBFS Full Bias.

INPUT FREQUENCY (MHz)

0.1

1.0

10.0

× MODE

Figure 17. SINAD vs. Input Frequency (fCLOCK = 20 MSPS) 8x SINAD

performance limited by noise contribution of input differential

op amp driver

–110

–100

–90

–80

–70

–60

–50

INPUT FREQUENCY (MHz)

0.1

1.0

10.0

× MODE

Figure 18. THD vs. Input Frequency (fCLOCK = 20 MSPS)

–110

–100

–90

–80

–70

–60

–50

INPUT FREQUENCY (MHz)

0.1

1.0

10.0

× MODE

Figure 19. SFDR vs. Input Frequency (fCLOCK = 20 MSPS)

INPUT FREQUENCY (MHz)

0.1

1.0

10.0

× MODE

Figure 20. SINAD vs. Input Frequency (fCLOCK = 10 MSPS)

–120

–115

–110

–105

–100

–95

–90

–85

–80

–75

–70

INPUT FREQUENCY (MHz)

0.1

1.0

10.0

× MODE

Figure 21. THD vs. Input Frequency (fCLOCK = 10 MSPS)

–120

–115

–110

–105

–100

–95

–90

–85

–80

–75

–70

INPUT FREQUENCY (MHz)

0.1

1.0

10.0

× MODE

Figure 22. SFDR vs. Input Frequency (fCLOCK = 10 MSPS)

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