EVAL-AD5061EBZ

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 FEATURES GENERAL DESCRIPTION Full featured evaluation board used in conjunction with This user guide describes the evaluation boards for evaluating the 2 low voltage digiPOT motherboard (EVAL-MB-LV-SDZ) AD5161, a 256-position SPI-/I C-selectable digital potentiometer. Multiple test circuits The AD5161 supports single-supply 2.7 V to 5.5 V operation, Multiple ac/dc input signals making the device suitable for battery-powered applications and PC control via a separately purchased system demonstration many applications requiring superior low temperature coefficient platform (SDP-B or SDP-S) performance. PC software for control 2 In addition, the AD5161 has a pin-selectable SPI- or I C- EVALUATION KIT CONTENTS compatible digital interface, which can be used to control the EVAL-AD5161DBZ evaluation board wiper settings or to read back the wiper register content. In SPI EVAL-MB-LV-SDZ motherboard mode, the device can be daisy-chained (SDO to SDI), allowing 2 CD that includes several parts to share the same control lines. In I C mode, Self-installing software that allows users to control the Address Pin AD0 can be used to place up to two devices on the board and exercise all functions of the device same bus. In this same mode, command bits are available to reset Electronic version of the AD5161 data sheet the wiper position to midscale or to shut down the device into a Electronic version of the EVAL-AD5161DBZ user guide state of zero power consumption. The EVAL-AD5161DBZ daughter board and the EVAL-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 Figure 1. Digital Picture of Evaluation Board with Low Voltage DigiPOT Motherboard and System Demonstration Platform PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 Page 1 of 16 11876-001UG-624 EVAL-AD5161DBZ User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Test Circuits ...................................................................................4 Evaluation Kit Contents ................................................................... 1 Evaluation Board Software ...............................................................6 General Description ......................................................................... 1 Installing the Software ..................................................................6 Photograph of EVAL-AD5161DBZ with Motherboard Running the Software ...................................................................6 and SDP-B .......................................................................................... 1 Operating the Software .................................................................7 Revision History ............................................................................... 2 Evaluation Board Schematics and Artwork ...................................8 Evaluation Board Hardware ............................................................ 3 Motherboard ..................................................................................8 Power Supplies .............................................................................. 3 Daughter Board .......................................................................... 12 Link Options ................................................................................. 3 Bill of Materials ............................................................................... 14 Digital Interface ............................................................................ 3 REVISION HISTORY 12/13Revision 0: Initial Version Rev. 0 Page 2 of 16