AD9484 datasheet(13/24 Pages) AD

Part #	AD9484

Description	8-Bit, 500 MSPS, 1.8 V Analog-to-Digital Converter Excellent linearity

PDF	24 Pages

Scroll/Zoom	100%

Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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13 / 24 page

AD9484

Rev. A | Page 13 of 24

EQUIVALENT CIRCUITS

0.9V

15kΩ

CLK+

CLK–

AVDD

Figure 20. Clock Inputs

CML

VIN+

AVDD

VBOOST

AVDD

VIN+

AVDD

500Ω

AIN+

AIN–

SPI

CONTROLLED

Figure 21. Analog Input DC Equivalent Circuit (VCML = ~1.7 V)

SCLK/DFS

350Ω

30kΩ

DRVDD

Figure 22. Equivalent SCLK/DFS, PDWN Input Circuit

VIN+

VIN–

1.3pF

1kΩ

Figure 23. Analog Input AC EquivalentCircuit

CSB

350Ω

30kΩ

DRVDD

Figure 24. Equivalent CSB Input Circuit

DRVDD

Dx+

V–

V+

Dx–

V+

V–

Figure 25. LVDS Outputs (Dx+, Dx−, OR+, OR−, DCO+, DCO−)

20kΩ

(11)

(01)

(00)

(10)

SPI CTRL VREF SELECT

00 = INTERNAL VREF

01 = IMPORT VREF

10 = EXPORT VREF

11 = NOT USED

NOT USED

VREF

AVDD

Figure 26. Equivalent VREF Input/Output Circuit

DRVDD

SDIO

30kΩ

350Ω

DRVDD

CTRL

Figure 27. Equivalent SDIO Input Circuit

AD9484 Datasheet(PDF) 13 Page - Analog Devices

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