Compact +30 V / 15 V, 256-Position Digital Potentiometer Data Sheet AD5290 FEATURES FUNCTIONAL BLOCK DIAGRAM 256 position V AD5290 DD 10 k, 50 k, 100 k SDO Q +20 V to +30 V single-supply operation A 8-BIT 8 8 10 V to 15 V dual-supply operation 8-BIT SERIAL LATCH REGISTER 3-wire SPI-compatible serial interface W Low temperature coefficient 35 ppm/C typical SDI D THD 0.006% typical CK B Midscale preset RS Compact MSOP-10 package CLK Automotive temperature range: 40C to +125C CS POR V SS 1 iCMOS process technology APPLICATIONS DGND High voltage DAC Figure 1. Programmable power supply Programmable gain and offset adjustment Programmable filters and delays Actuator control Audio volume control Mechanical potentiometer replacement GENERAL DESCRIPTION The AD5290 is one of the few high voltage, high performance, With digital rather than manual control, the AD5290 provides 2, 3 and compact digital potentiometers in the market at present. layout flexibility and allows closed-loop dynamic controllability. This device can be used as a programmable resistor or resistor The AD5290 is available in MSOP-10 package and has 10 k, divider. The AD5290 performs the same electronic adjustment 50 k, and 100 k options. All parts are guaranteed to operate function as mechanical potentiometers, variable resistors, and over the 40C to +125C extended automotive temperature range. trimmers, with enhanced resolution, solid-state reliability, and superior temperature stability. 1 iCMOS Process Technology. For analog systems designers who need high performance ICs at higher voltage levels, iCMOS is a technology platform that enables the development of analog ICs capable of 30 V and operating at 15 V supplies while allowing dramatic reductions in power consumption and package size, and increased ac and dc performance. 2 The terms digital potentiometer and RDAC are used interchangeably. 3 The RDAC segmentation is protected by U.S. Patent Number 5,495,245. Rev. D 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 2005-2019 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 04716-001AD5290 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Programming the Variable Resistor ......................................... 15 Applications ....................................................................................... 1 Programming the Potentiometer Divider ............................... 16 Functional Block Diagram .............................................................. 1 3-Wire Serial Bus Digital Interface .......................................... 16 General Description ......................................................................... 1 Daisy Chain Operation .............................................................. 16 Revision History ............................................................................... 2 ESD Protection ........................................................................... 17 Specif icat ions ..................................................................................... 3 Terminal Voltage Operating Range ......................................... 17 Electrical Characteristics10 k Version ................................ 3 Power-Up and Power-Down Sequences .................................. 17 Electrical Characteristics50 k, 100 k Versions ............... 5 Layout and Power Supply Biasing ............................................ 17 Interface Timing Characteristics ................................................ 7 Applicat ions ..................................................................................... 18 3-Wire Digital Interface ................................................................... 8 High Voltage DAC ...................................................................... 18 Absolute Maximum Ratings ............................................................ 9 Programmable Power Supply ................................................... 18 ESD Caution .................................................................................. 9 Audio Volume Control .............................................................. 18 Pin Configuration and Descriptions ............................................ 10 Outline Dimensions ....................................................................... 20 Typical Performance Characteristics ........................................... 11 Ordering Guide .......................................................................... 20 Theory of Operation ...................................................................... 15 REVISION HISTORY 7/2009Rev. 0 to Rev. A 11/2019Rev. C to Rev. D Changes to Features Section ............................................................ 1 Change to Programmable Power Supply Section ....................... 18 Changes to Ordering Guide .......................................................... 20 Change to Ordering Guide ............................................................ 20 12/2005Revision 0: Initial Version 11/2011Rev. B to Rev. C Change to Figure 33 ....................................................................... 18 4/2010Rev. A to Rev. B Changes to Figure 29 ...................................................................... 16 Updated Outline Dimensions ....................................................... 20 Rev. D Page 2 of 20