AD9238(RevA) Просмотр технического описания (PDF) - Analog Devices

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AD9238
(Rev.:RevA)

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

Analog Devices 

AD9238–Typical Performance Characteristics

0

–20

–40

–60

–80

–100

CROSSTALK

SECOND THIRD

HARMONIC HARMONIC

–120

0

5

10

15

20

25

30

FREQUENCY – MHz

TPC 1. Single-Tone FFT of Channel A Digitizing

fIN = 12.5 MHz while Channel B is Digitizing fIN = 10 MHz

100

95

90

85

SFDR

80

75

SNR

70

65

60

55

50

40

45

50

55

60

65

ADC SAMPLE RATE – MSPS

TPC 4. AD9238-65 Single-Tone SNR/SFDR vs. FS with

fIN = 32.5 MHz

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TPC 2. Single-Tone FFT of Channel A Digitizing

fIN = 70 MHz while Channel B is Digitizing fIN = 76 MHz

100

95

90

85

SNFDRR

80

75

SSNNRR

70

65

60

55

50

20

25

30

35

40

ADC SAMPLE RATE – MSPS

TPC 5. AD9238-40 Single-Tone SNR/SFDR vs. FS with

fIN = 20 MHz

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TPC 3. Single-Tone FFT of Channel A Digitizing

fIN = 120 MHz while Channel B is Digitizing fIN = 126 MHz

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TPC 6. AD9238-20 Single-Tone SNR/SFDR vs. FS with

fIN = 10 MHz

–8–

REV. A

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