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AD5143 Dataheets PDF



Part Number AD5143
Manufacturers Analog Devices
Logo Analog Devices
Description Nonvolatile Digital Potentiometer
Datasheet AD5143 DatasheetAD5143 Datasheet (PDF)

Data Sheet Quad Channel, 128-/256-Position, I2C, Nonvolatile Digital Potentiometer AD5123/AD5143 FEATURES 10 kΩ and 100 kΩ resistance options Resistor tolerance: 8% maximum Wiper current: ±6 mA Low temperature coefficient: 35 ppm/°C Wide bandwidth: 3 MHz Fast start-up time < 75 μs Linear gain setting mode Single- and dual-supply operation Wide operating temperature: −40°C to +125°C 3 mm × 3 mm package APPLICATIONS Portable electronics level adjustment LCD panel brightness and contrast controls.

  AD5143   AD5143


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Data Sheet Quad Channel, 128-/256-Position, I2C, Nonvolatile Digital Potentiometer AD5123/AD5143 FEATURES 10 kΩ and 100 kΩ resistance options Resistor tolerance: 8% maximum Wiper current: ±6 mA Low temperature coefficient: 35 ppm/°C Wide bandwidth: 3 MHz Fast start-up time < 75 μs Linear gain setting mode Single- and dual-supply operation Wide operating temperature: −40°C to +125°C 3 mm × 3 mm package APPLICATIONS Portable electronics level adjustment LCD panel brightness and contrast controls Programmable filters, delays, and time constants Programmable power supplies GENERAL DESCRIPTION The AD5123/AD5143 potentiometers provide a nonvolatile solution for 128-/256-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the Ax, Bx, and Wx pins. The low resistor tolerance and low nominal temperature coefficient simplify open-loop applications as well as applications requiring tolerance matching. The linear gain setting mode allows independent programming of the resistance between the digital potentiometer terminals, through the RAW and RWB string resistors, allowing very accurate resistor matching. The high bandwidth and low total harmonic distortion (THD) ensure optimal performance for ac signals, making the devices suitable for filter design. The low wiper resistance of only 40 Ω at the ends of the resistor array allows for pin to pin connection. The wiper values can be set through an I2C-compatible digital interface that also reads back the wiper register and EEPROM contents. The AD5123/AD5143 are available in a compact, 16-lead, 3 mm × 3 mm LFCSP. The devices are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C. SCL SDA ADDR FUNCTIONAL BLOCK DIAGRAM VDD POWER-ON RESET AD5123/AD5143 RDAC1 INPUT REGISTER 1 SERIAL INTERFACE 7/8 RDAC2 INPUT REGISTER 2 RDAC3 INPUT REGISTER 3 RDAC4 INPUT REGISTER 4 EEPROM MEMORY A1 W1 B1 A2 W2 B2 W3 B3 W4 B4 10878-001 GND VSS Figure 1. Table 1. Family Models Model Channel Position AD51231 Quad 128 AD5124 Quad 128 AD5124 Quad 128 AD5143 Quad 256 AD5144 Quad 256 AD5144 Quad 256 AD5144A Quad 256 AD5122 Dual 128 AD5122A Dual 128 AD5142 Dual 256 AD5142A Dual 256 AD5121 Single 128 AD5141 Single 256 Interface I2C SPI/I2C SPI I2C SPI/I2C SPI I2C SPI I2C SPI I2C SPI/I2C SPI/I2C Package LFCSP LFCSP TSSOP LFCSP LFCSP TSSOP TSSOP LFCSP/TSSOP LFCSP/TSSOP LFCSP/TSSOP LFCSP/TSSOP LFCSP LFCSP 1 Two potentiometers and two rheostats. Rev. B 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 rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2012–2016 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com AD5123/AD5143 TABLE OF CONTENTS Features .............................................................................................. 1  Applications....................................................................................... 1  Functional Block Diagram .............................................................. 1  General Description ......................................................................... 1  Revision History ............................................................................... 2  Specifications..................................................................................... 3  Electrical Characteristics—AD5123 .......................................... 3  Electrical Characteristics—AD5143 .......................................... 6  Interface Timing Specifications.................................................. 9  Shift Register and Timing Diagrams ....................................... 10  Absolute Maximum Ratings.......................................................... 11  Thermal Resistance .................................................................... 11  ESD Caution................................................................................ 11  Pin Configuration and Function Descriptions........................... 12  Typical Performance Characteristics ........................................... 13  Test Circuits..................................................................................... 18  REVISION HISTORY 2/16—Rev. A to Rev. B Changes to Features Section............................................................ 1 Added Endnote, Table 2................................................................... 5 Added Endnote, Table .


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