AD9761ARS datasheet(9/23 Pages) AD

9 / 23 page

AD9761

–9–

REV. A

Typical AC Characterization Curves @ +3 V Supplies

(AVDD = +3 V, DVDD = +3 V, 50

Doubly Terminated Load, TA = +25 C, fCLOCK = 10 MSPS, unless otherwise noted, worst of I or Q output

performance shown)

–10

–20

–30

–40

–50

–70

–60

–80

–90

START: 0Hz

STOP: 10MHz

Figure 13. Single-Tone SFDR (DC to

2fDATA, fCLOCK = 2 fDATA)

fOUT – MHz

0.5

2.5

1.0

1.5

2.0

S/E 0dBFS

DIFF 0dBFS

S/E –6dBFS

DIFF –6dBFS

Figure 16. “Out-of-Band” SFDR vs.

fOUT (fDATA/2 to 3/2fDATA)

fOUT – MHz

SFDR @ 10mA

SINAD @ 10mA

SFDR @ 5mA

SINAD @ 5mA

SFDR @ 2.5mA

SINAD @ 2.5mA

Figure 19. SINAD/SFDR vs. IOUTFS (DC

to fDATA/2, Differential Output)

fOUT – MHz

0.5

2.5

1.0

1.5

2.0

10.5

9.67

8.01

8.84

S/E 0dBFS

DIFF 0dBFS

S/E –6dBFS

DIFF –6dBFS

Figure 14. SINAD (ENOBs) vs. fOUT

(DC to fDATA/2)

AOUT – dBFS

–30

–25

–5

–20

–15

–10

SFDR @ 40MSPS

SFDR @ 20MSPS

SFDR @ 10MSPS

SINAD @ 40MSPS

SINAD @ 20MSPS

SINAD @ 10MSPS

Figure 17. SINAD vs. AOUT (DC to

fDATA/2, Differential Output)

SFDR @ 10mA

fOUT – MHz

SINAD @ 10mA

SFDR @ 5mA

SINAD @ 5mA

SFDR @ 2.5mA

SINAD @ 2.5mA

468

Figure 20. SINAD/SFDR vs. IOUTFS

(DC to fDATA/2, Single-Ended Output)

fOUT – MHz

0.5

2.5

1.0

1.5

2.0

S/E 0dBFS

DIFF 0dBFS

S/E –6dBFS

DIFF –6dBFS

Figure 15. SFDR vs. fOUT (DC to fDATA/2)

AOUT – dBFS

–30

–25

–5

–20

–15

–10

SFDR @ 40MSPS

SFDR @ 20MSPS

SFDR @ 10MSPS

SINAD @ 20MSPS

SINAD @ 10MSPS

SINAD @ 40MSPS

Figure 18. SINAD vs. AOUT (DC to

fDATA/2, Single-Ended Output)

–10

–20

–30

–40

–50

–70

–60

–80

START: 0Hz

STOP: 10MHz

Figure 21. Narrowband Spread-

Spectrum Spectral Plot (DC to fDATA)

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