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EVAL-AD5161DBZ User Guide
UG-624
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 AD5161 Digital Potentiometer
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 16
FEATURES
Full featured evaluation board used in conjunction with
low voltage digiPOT motherboard (EVAL-MB-LV-SDZ)
Multiple test circuits
Multiple ac/dc input signals
PC control via a separately purchased system demonstration
platform (SDP-B or SDP-S)
PC software for control
EVALUATION KIT CONTENTS
EVAL-AD5161DBZ evaluation 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 AD5161 data sheet
Electronic version of the EVAL-AD5161DBZ user guide
GENERAL DESCRIPTION
This user guide describes the evaluation boards for evaluating the
AD5161, a 256-position SPI-/I
2
C-selectable digital potentiometer.
The AD5161 supports single-supply 2.7 V to 5.5 V operation,
making the device suitable for battery-powered applications and
many applications requiring superior low temperature coefficient
performance.
In addition, the AD5161 has a pin-selectable SPI- or I
2
C-
compatible digital interface, which can be used to control the
wiper settings or to read back the wiper register content. In SPI
mode, the device can be daisy-chained (SDO to SDI), allowing
several parts to share the same control lines. In I
2
C mode,
Address Pin AD0 can be used to place up to two devices on the
same bus. In this same mode, command bits are available to reset
the wiper position to midscale or to shut down the device into a
state of zero power consumption.
The E VA L -AD5161DBZ daughter board and the E VA L -MB-
LV-SDZ motherboard can operate in single-supply mode and
incorporate an internal power supply from the USB.
Complete specifications for the AD5161 can be found in the
AD5161 data sheet, which is available from www.analog.com
and should be consulted in conjunction with this user guide
when using the evaluation board.
PHOTOGRAPH OF EVAL-AD5161DBZ WITH MOTHERBOARD AND SDP-B
11876-001
Figure 1. Digital Picture of Evaluation Board with Low Voltage DigiPOT Motherboard and System Demonstration Platform
