Quad, 15 V, 256-Position, Digital 2 Potentiometer with Pin-Selectable SPI/I C Data Sheet AD5263 FEATURES FUNCTIONAL BLOCK DIAGRAM A1 W2 B2 W4 W1 B1 A2 A3 W3 B3 A4 B4 256-position, 4-channel V End-to-end resistance 20 k, 50 k, 200 k DD 2 V SS Pin-selectable SPI- or I C-compatible interface Power-on preset to midscale SHDN RDAC 1 RDAC 2 RDAC 3 RDAC 4 REGISTER REGISTER REGISTER REGISTER RES/AD1 Two package address decode pins AD0 and AD1 Rheostat mode temperature coefficient 30 ppm/C 8 V L AD5263 Voltage divider temperature coefficient 5 ppm/C CLK/SCL ADDRESS Wide operating temperature range 40C to +125C DECODER SDI/SDA SERIAL INPUT REGISTER 10 V to 15 V single supply 5 V dual supply CS/AD0 2 SPI/I C SELECT GND LOGIC APPLICATIONS Mechanical potentiometer replacement DIS NC/O2 SDO/O1 Optical network adjustment Figure 1. Instrumentation: gain, offset adjustment Stereo channel audio level control Automotive electronics adjustment Programmable power supply Programmable filters, delays, time constants Line impedance matching Low resolution DAC/trimmer replacement Base station power amp biasing Sensor calibration GENERAL DESCRIPTION Wiper position programming presets to midscale upon power- The AD5263 is the industrys first quad-channel, 256-position, on. Once powered, the VR wiper position is programmed by 1 digital potentiometer with a selectable digital interface. This 2 either the 3-wire SPI or 2-wire I C-compatible interface. In the device performs the same electronic adjustment function as 2 I C mode, additional programmable logic outputs enable users mechanical potentiometers or variable resistors, with enhanced to drive digital loads, logic gates, and analog switches in their resolution, solid-state reliability, and superior low temperature systems. coefficient performance. The AD5263 is available in a narrow body, 24-lead TSSOP. Each channel of the AD5263 offers a completely programmable All parts are guaranteed to operate over the automotive value of resistance between the A terminal and the wiper or temperature range of 40C to +125C. between the B terminal and the wiper. The fixed A-to-B terminal resistance of 20 k, 50 k, or 200 k has a nominal For single- or dual-channel applications, refer to the temperature coefficient of 30 ppm/C and a 1% channel-to- AD5260/AD5280 or AD5262/AD5282 data sheets. channel matching tolerance. Another key feature of this part is 1 The terms digital potentiometer, VR, and RDAC are used interchangeably. the ability to operate from +4.5 V to +15 V, or at 5 V. Rev. F 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 20032012 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 03142-001AD5263 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Multiple Devices on One Bus ................................................... 21 Applications ....................................................................................... 1 Level Shift for Negative Voltage Operation ................................ 21 Functional Block Diagram .............................................................. 1 ESD Protection ........................................................................... 21 General Description ......................................................................... 1 Terminal Voltage Operating Range ......................................... 21 Revision History ............................................................................... 2 Power-Up Sequence ................................................................... 21 Electrical Characteristics20 k, 50 k, 200 k Versions ....... 3 V Power Supply ................................................................... 22 LOGIC Timing Characteristics20 k, 50 k, 200 k Versions .......... 5 Layout and Power Supply Bypassing ....................................... 22 Absolute Maximum Ratings ............................................................ 6 RDAC Circuit Simulation Model ............................................. 22 ESD Caution .................................................................................. 6 Applications Information .............................................................. 23 Pin Configuration and Pin Function Descriptions ...................... 7 Bipolar DC or AC Operation from Dual Supplies ................. 23 Typical Performance Characteristics ............................................. 8 Gain Control Compensation .................................................... 23 Test Circuits ..................................................................................... 13 Programmable Voltage Reference ............................................ 23 SPI-Compatible Digital Interface (DIS = 0) ................................ 15 8-Bit Bipolar DAC ...................................................................... 24 Serial Data-Word Format .......................................................... 15 Bipolar Programmable Gain Amplifier ................................... 24 2 I C-Compatible Digital Interface (DIS = 1) ................................ 16 Programmable Voltage Source with Boosted Output ........... 24 2 I C Write Mode Data-Word Format ........................................ 16 Programmable 4 to 20 mA Current Source ............................ 25 2 I C Read Mode Data-Word Format ......................................... 16 Programmable Bidirectional Current Source ......................... 25 Operation ......................................................................................... 17 Programmable Low-Pass Filter ................................................ 26 Programming the Variable Resistor ......................................... 17 Programmable Oscillator .......................................................... 26 Programming the Potentiometer Divider Voltage Output Resistance Scaling ...................................................................... 27 Operation ..................................................................................... 18 Resistance Tolerance, Drift, and Temperature Coefficient Pin-Selectable Digital Interface ................................................ 18 Mismatch Considerations ......................................................... 27 SPI-Compatible 3-Wire Serial Bus (DIS = 0) ......................... 18 Outline Dimensions ....................................................................... 28 2 I C-Compatible 2-Wire Serial Bus (DIS = 1) .......................... 19 Ordering Guide .......................................................................... 28 Additional Programmable Logic Output ................................ 20 Self-Contained Shutdown Function ........................................ 20 REVISION HISTORY 10/12Rev. E to Rev. F 7/09Rev. A to Rev. B Changes to Self-Contained Shutdown Function Section .......... 20 Change to Features Section .............................................................. 1 Added Table 8 and Table 9 Renumbered Sequentially ............. 20 Change to Power Single-Supply Range Parameter........................ 4 Changes to Programmable Voltage Source with Boosted Output Changes to Ordering Guide .......................................................... 28 Section .............................................................................................. 24 11/06Rev. 0 to Rev. A Updated Format .................................................................. Universal 7/12Rev. D to Rev. E Changes to Absolute Maximum Ratings ........................................ 6 Changes to SD Description ........................................................... 16 Changes to Ordering Guide .......................................................... 28 4/12Rev. C to Rev. D 6/03Revision 0: Initial Version Change to Rheostat Operation Section ....................................... 17 Deleted Equation 4 and Accompanying Text ............................. 18 5/11Rev. B to Rev. C Change to Digital Inputs and Output Voltage Parameter .............. 6 Changes to Ordering Guide .......................................................... 28 2 Changes to I C Disclaimer ............................................................ 28 Rev. F Page 2 of 28