参数资料
| 型号： | EVAL-AD5254SDZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD5254 |
| 标准包装： | 1 |
| 主要目的： | 数字电位器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | AD5254 |
| 主要属性： | 4 通道，256 位置 |
| 次要属性： | I²C 接口 |
| 已供物品： | 板，CD |
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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