EVAL-AD5254SDZ【PDF 1/16 页】BOARD EVAL FOR AD5254

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Evaluation Board User Guide

UG-236

One Technology Way ? P.O. Box 9106 ? Norwood, MA 02062-9106, U.S.A. ? Tel: 781.329.4700 ? Fax: 781.461.3113 ? www.analog.com

Evaluation Board for the AD5254 Digital Potentiometer

FEATURES

Full featured evaluation board for the AD5254

Several test circuits

Various ac/dc input signals

PC control via a separately purchased system development

platform (SDP)

PC control software

12 extra bytes in EEMEM for user-defined information

Resistor tolerance error stored in EEMEM

PACKAGE CONTENTS

EVAL-AD5254SDZ evaluation board

CD that includes

Self-installing software that allows users to control the

board and exercise all functions of the device

Electronic version of the AD5254 data sheet

Electronic version of the UG-236 document

GENERAL DESCRIPTION

This user guide describes the evaluation board for evaluating the

AD5254 —a quad-channel, 256-position, nonvolatile memory

digital potentiometer. With versatile programmability, the AD5254

allows multiple modes of operation, including read/write access

in the RDAC and EEMEM registers, increment/decrement of

resistance, resistance changes in ±6 dB scales, wiper setting read-

back, and extra EEMEM for storing user-defined information,

such as memory data for other components or a lookup table.

The AD5254 supports a dual-supply ±2.25 V to ±2.75 V operation

and a single-supply 2.7 V to 5.5 V operation, making the device

suited for battery-powered applications and many other appli-

cations. In addition, the AD5254 uses a versatile I 2 C serial

interface that operates in fast mode, allowing speeds of up to

400 kbps and supporting the selection of up to four different I 2 C

addresses.

The EVAL-AD5254SDZ can operate in single-supply and dual-

supply mode and incorporates an internal power supply from

the USB.

Complete specifications for the AD5254 part can be found in

the AD5254 data sheet, which is available from Analog Devices,

Inc., and should be consulted in conjunction with this user

guide when using the evaluation board.

DIGITAL PICTURE OF EVALUATION BOARD WITH SYSTEM DEVELOPMENT PLATFORM

SYSTEM DEVELOPMENT

PLATFORM

EVAL-AD5254SDZ

Figure 1.

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 16

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