EVAL-AD5292EBZ Analog Devices

A W B 1024-Position, Digital Potentiometer with Maximum 1% R-Tolerance Error and 20-TP Memory Enhanced Product AD5292-EP FEATURES FUNCTIONAL BLOCK DIAGRAM V RESET DD Single-channel, 1024-position resolution 20 k nominal resistance POWER-ON AD5292-EP RESET Maximum 1% nominal resistor tolerance error (resistor performance mode) V LOGIC 20-times programmable wiper memory RDAC Rheostat mode temperature coefficient: 35 ppm/C REGISTER SCLK Voltage divider temperature coefficient: 5 ppm/C DATA SERIAL INTERFACE +9 V to +33 V single-supply operation SYNC 9 V to 16.5 V dual-supply operation OTP DIN MEMORY SPI-compatible serial interface BLOCK Wiper setting readback SDO Power-on refreshed from 20-TP memory RDY ENHANCED PRODUCT FEATURES V EXT CAP GND SS Supports defense and aerospace applications (AQEC) Figure 1. Temperature range: 55C to +125C Controlled manufacturing baseline 1 assembly/test site 1 fabrication site Product change notification Qualification data available on request APPLICATIONS Mechanical potentiometer replacement Instrumentation: gain and offset adjustment Programmable voltage-to-current conversion Programmable filters, delays, and time constants Programmable power supply Low resolution DAC replacement Sensor calibration GENERAL DESCRIPTION The AD5292-EP is a single-channel, 1024-position digital The AD5292-EP device wiper settings are controllable through 1 potentiometer that combines industry leading variable resistor the SPI digital interface. Unlimited adjustments are allowed performance with nonvolatile memory (NVM) in a compact before programming the resistance value into the 20-TP memory. package. This device is capable of operating across a wide voltage The AD5292-EP does not require any external voltage supply range, supporting both dual supply operation at 10.5 V to 16.5 to facilitate fuse blow, and there are 20 opportunities for perma- V and single-supply operation at +21 V to +33 V, while ensuring nent programming. During 20-TP activation, a permanent blow less than 1% end-to-end resistor tolerance error and offering 20- fuse command freezes the wiper position (analogous to placing time programmable (20-TP) memory. epoxy on a mechanical trimmer). The guaranteed industry leading low resistor tolerance error The AD5292-EP is available in a compact 14-lead TSSOP feature simplifies open-loop applications as well as precision package. The part is guaranteed to operate over the extended calibration and tolerance matching applications. industrial temperature range of 55C to +125C. Additional application and technical information can be found 1 The terms digital potentiometer and RDAC are used interchangeably. in the AD5292 data sheet. Rev. A Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20112018 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com 10095-001AD5292-EP Enhanced Product TABLE OF CONTENTS Features .............................................................................................. 1 Interface Timing Specifications ...................................................5 Enhanced Product Features ............................................................ 1 Absolute Maximum Ratings ............................................................7 Applications ....................................................................................... 1 Thermal Resistance .......................................................................7 Functional Block Diagram .............................................................. 1 ESD Caution...................................................................................7 General Description ......................................................................... 1 Pin Configuration and Function Descriptions ..............................8 Revision History ............................................................................... 2 Typical Performance Characteristics ..............................................9 Specifications ..................................................................................... 3 Test Circuits ..................................................................................... 14 Electrical CharacteristicsAD5292-EP .................................... 3 Outline Dimensions ....................................................................... 15 Resistor Performance Mode Code Range ................................. 4 Ordering Guide .......................................................................... 15 REVISION HISTORY 4/2018Rev. 0 to Rev. A Change to Enhanced Product Features Section ........................... 1 Changes to Ordering Guide .......................................................... 15 9/2011Revision 0: Initial Version Rev. A Page 2 of 16