Single-Channel, 128-/64-/32-Position, Up/Down, 8% Resistor Tolerance, Nonvolatile Digital Potentiometer Data Sheet AD5111/AD5113/AD5115 FEATURES FUNCTIONAL BLOCK DIAGRAM V DD Nominal resistor tolerance error: 8% maximum Wiper current: 6 mA AD5111/ POWER-ON AD5113/ Rheostat mode temperature coefficient: 35 ppm/C RESET A AD5115 Low power consumption: 2.5 A max 2.7 V and 125C W Wide bandwidth: 4 MHz (5 k option) CLK DATA B Power-on EEPROM refresh time < 50 s EEPROM EN UP/DOWN 50-year typical data retention at 125C CS CONTROL LOGIC RDAC 1 million write cycles DATA REGISTER U/D 2.3 V to 5.5 V supply operation Chip select enable multiple device operation GND Wide operating temperature: 40C to +125C Figure 1. Thin, 2 mm 2 mm 0.55 mm 8-lead LFCSP package APPLICATIONS Mechanical potentiometer replacement Table 1. 8% Resistance Tolerance Family Portable electronics level adjustment Model Resistance (k) Position Interface Audio volume control 2 AD5110 10, 80 128 I C Low resolution DAC AD5111 10, 80 128 Up/down LCD panel brightness and contrast control 2 AD5112 5, 10, 80 64 I C Programmable voltage to current conversion AD5113 5, 10, 80 64 Up/down Programmable filters, delays, time constants AD5116 5, 10, 80 64 Push-button Feedback resistor programmable power supply 2 AD5114 10, 80 32 I C Sensor calibration AD5115 10, 80 32 Up/down GENERAL DESCRIPTION The AD5111/AD5113/AD5115 provide a nonvolatile solution The new low wiper resistance feature minimizes the wiper for 128-/64-/32-position adjustment applications, offering resistance in the extremes of the resistor array to only 45 , guaranteed low resistor tolerance errors of 8% and up to typical. 6 mA current density in the A, B, and W pins. The low resistor A simple 3-wire up/down interface allows manual switching tolerance, low nominal temperature coefficient, and high or high speed digital control with clock rates up to 50 MHz. bandwidth simplify open-loop applications, as well as tolerance The AD5111/AD5113/AD5115 are available in a 2 mm 2 mm matching applications. LFCSP package. The parts are guaranteed to operate over the extended industrial temperature range of 40C to +125C. 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 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 20112012 Analog Devices, Inc. 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Technical Support www.analog.com 09654-001AD5111/AD5113/AD5115 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Test Circuits ..................................................................................... 17 Applications ....................................................................................... 1 Theory of Operation ...................................................................... 18 Functional Block Diagram .............................................................. 1 RDAC Register and EEPROM .................................................. 18 General Description ......................................................................... 1 Basic Operation .......................................................................... 18 Revision History ............................................................................... 2 Low Wiper Resistance Feature ................................................. 18 Specifications ..................................................................................... 3 Shutdown Mode ......................................................................... 18 Electrical CharacteristicsAD5111 .......................................... 3 EEPROM Write Operation ....................................................... 18 Electrical CharacteristicsAD5113 .......................................... 5 RDAC Architecture .................................................................... 19 Electrical CharacteristicsAD5115 .......................................... 7 Programming the Variable Resistor ......................................... 19 Interface Timing Specifications .................................................. 9 Programming the Potentiometer Divider ............................... 20 Timing Diagram ........................................................................... 9 Terminal Voltage Operating Range ......................................... 20 Absolute Maximum Ratings .......................................................... 10 Power-Up Sequence ................................................................... 21 Thermal Resistance .................................................................... 10 Layout and Power Supply Biasing ............................................ 21 ESD Caution ................................................................................ 10 Outline Dimensions ....................................................................... 22 Pin Configuration and Function Descriptions ........................... 11 Ordering Guide .......................................................................... 22 Typical Performance Characteristics ........................................... 12 REVISION HISTORY 11/12Rev. A to Rev. B Changed Low Power Consumption from 2.5 mA to 2.5 A....... 1 Changed I Unit from mA to A, Table 2 .................................... 3 DD Changed I Unit from mA to A, Table 3 .................................... 5 DD Changed I Unit from mA to A, Table 4 .................................... 7 DD 4/12Rev. 0 to Rev. A Changes to Features Section............................................................ 1 Changes to Positive Supply Current, Table 2 ................................ 3 Changes to Positive Supply Current, Table 3 ................................ 5 Changes to Positive Supply Current, Table 4 ................................ 7 Updated Outline Dimensions ....................................................... 22 10/11Revision 0: Initial Version Rev. B Page 2 of 24