AD9762 datasheet(8/23 Pages) AD

Part #	AD9762

Description	12-Bit, 125 MSPS TxDAC D/A Converter

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AD9762

–8–

REV. B

FREQUENCY – MSPS

–70

–75

–95

0

20

140

40

60

80

100

120

–80

–85

–90

2ND

HARMONIC

3RD

HARMONIC

4TH

HARMONIC

Figure 12. THD vs. fCLOCK @

fOUT = 2 MHz

1.25

–0.50

–1.25

4000

1000

2000

3000

1.00

–0.25

0.25

0

–0.75

0.50

–1.00

0.75

CODE

0

Figure 15. Typical INL

0

–100

START: 0.3 MHz

STOP: 50.0 MHz

fCLOCK = 100 MSPS

fOUT = 2.41MHz

SFDR = 72dBc

AMPLITUDE = 0dBFS

Figure 18. Single-Tone SFDR

IOUTFS – mA

80

70

30

28

20

14

60

50

40

75

65

55

45

35

4

6

10

12

16

18

2.5MHz

10MHz

22.2MHz

40MHz

Figure 13. SFDR vs. fOUT and IOUTFS

@ 100 MSPS, 0 dBFS

1

–0.4

4000

1000

2000

3000

0.8

–0.2

0.2

0

0.4

0.6

CODE

0

Figure 16. Typical DNL

0

–100

START: 0.3 MHz

STOP: 50.0 MHz

fCLOCK = 100 MSPS

fOUT1 = 13.5MHz

fOUT2 = 14.5MHz

SFDR = 62dBc

AMPLITUDE = 0dBFS

Figure 19. Dual-Tone SFDR

OUTPUT FREQUENCY – MHz

75

70

45

1

10

100

60

55

50

65

IDIFF @ –6dBFS

IDIFF @ 0dBFS

IOUTA @ –6dBFS

IOUTA @ 0dBFS

Figure 14. Differential vs. Single-

Ended SFDR vs. fOUT @ 100 MSPS

TEMPERATURE – C

80

75

50

–40

–20

80

60

70

65

60

55

40

20

0

2.5MHz

10MHz

40MHz

Figure 17. SFDR vs. Temperature

@ 100 MSPS, 0 dBFS

–10

–110

START: 0.3 MHz

STOP: 25.0 MHz

fCLOCK = 50 MSPS

fOUT1 = 6.25MHz

fOUT2 = 6.75MHz

fOUT3 = 7.25MHz

fOUT4 = 7.75MHz

SFDR = 71dBc

AMPLITUDE = 0dBFS

Figure 20. Four-Tone SFDR

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