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Evaluation Board User Guide
UG-471
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
Evaluating the AD5142 Digital Potentiometer
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 20
FEATURES
Full featured evaluation board in conjunction with low
voltage digiPOT motherboard (EVAL-MB-LV-SDZ)
Various test circuits
Various ac/dc input signals
PC control via a separately purchased system demonstration
platform (SDP-B or SDP-S)
PC software for control
PACKAGE CONTENTS
EVAL-AD5142DBZ board
EVAL-MB-LV-SDZ motherboard
CD that includes
Self-installing software that allows users to control the
board and exercise all functions of the device
Electronic version of the AD5142 data sheet
Electronic version of the UG-471 user guide
GENERAL DESCRIPTION
This user guide describes the evaluation board for evaluating the
AD5142—a quad-channel, 256-position, nonvolatile memory,
digital potentiometer. With versatile programmability, the AD5142
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 AD5142 supports a dual-supply ±2.25 V to ±2.75 V operation
and a single-supply 2.3 V to 5.5 V operation, making the device
suitable for battery-powered applications and many other appli-
cations. In addition, the AD5142 uses a versatile SPI-compatible
serial interface, allowing speeds of up to 50 MHz. The EVA L-
AD5142DBZ can operate in single-supply or dual-supply mode
and incorporates an internal power supply from the USB.
Complete specifications for the AD5142 part can be found in the
AD5142 data sheet, which is available from Analog Devices, Inc.,
and should be consulted in conjunction with this user guide
when using the evaluation board.
EVAL-AD5142DBZ WITH MOTHERBOARD AND SDP-S
11008-001
Figure 1. Digital Picture of Evaluation Board with Low Voltage DigiPOT Motherboard and System Demonstration Platform
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