AD9238BST-20 datasheet(11/24 Pages) AD

Part #	AD9238BST-20

Description	12-Bit, 20/40/65 MSPS Dual A/D Converter

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Manufacturer	AD [Analog Devices]

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AD9238

–10–

AD9238

–11–

CLOCK FREQUENCY

72

70

74

0

68

20

40

60

SINAD –65

SINAD –40

SINAD –20

12.0

11.5

11.0

TPC 19. SINAD vs. FS with Nyquist Input

DUTY CYCLE – %

85

80

75

70

95

65

30

60

40

45

50

55

60

65

55

50

DCS ON – SINAD

DCS ON – SFDR

DCS OFF – SINAD

DCS OFF – SFDR

90

35

TPC 20. SINAD/SFDR vs. Clock Duty Cycle

TEMPERATURE – C

80

78

76

74

84

72

–50

70

0

50

100

68

66

SINAD

SFDR

82

TPC 21. SINAD/SFDR vs.Temperature with fIN = 32.5 MHz

SAMPLE RATE – MSPS

500

400

300

200

600

100

0

10

20

30

40

50

60

–65

–40

–20

TPC 22. Analog Power Consumption vs. FS

CODE

0.6

–0.8

0.4

0.2

0

–0.2

–0.4

–0.6

0.8

1.0

–1.0

1500

1000

500

0

2000

2500

3000

3500

4000

TPC 23. AD9238-65Typical INL

CODE

0.6

–0.8

0.4

0.2

0

–0.2

–0.4

–0.6

0.8

1.0

–1.0

1500

1000

500

0

2000

2500

3000

3500

4000

TPC 24. AD9238-65Typical DNL

REV. A

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AD9238BST-20 Datasheet(PDF) 11 Page - Analog Devices

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