Small, Low Power, 3-Axis 16 g Accelerometer ADXL326 FEATURES GENERAL DESCRIPTION 3-axis sensing The ADXL326 is a small, low power, complete 3-axis Small, low profile package accelerometer with signal conditioned voltage outputs. The 4 mm 4 mm 1.45 mm LFCSP product measures acceleration with a minimum full-scale range Low power: 350 A typical of 16 g. It can measure the static acceleration of gravity in tilt- Single-supply operation: 1.8 V to 3.6 V sensing applications, as well as dynamic acceleration, resulting 10,000 g shock survival from motion, shock, or vibration. Excellent temperature stability The user selects the bandwidth of the accelerometer using Bandwidth adjustment with a single capacitor per axis the C , C , and C capacitors at the X , Y , and Z pins. X Y Z OUT OUT OUT RoHS/WEEE lead-free compliant Bandwidths can be selected to suit the application with a range of 0.5 Hz to 1600 Hz for X and Y axes and a range of 0.5 Hz to 550 Hz for the Z axis. APPLICATIONS Cost-sensitive, low power, motion- and tilt-sensing applications The ADXL326 is available in a small, low profile, 4 mm Mobile devices 4 mm 1.45 mm, 16-lead, plastic lead frame chip scale package Gaming systems (LFCSP LQ). Disk drive protection Image stabilization Sports and health devices FUNCTIONAL BLOCK DIAGRAM +3V V S ADXL326 X ~32k OUT OUTPUT AMP C X 3-AXIS SENSOR Y ~32k OUT C AC AMP DEMOD OUTPUT AMP DC C Y Z ~32k OUT OUTPUT AMP C Z COM ST Figure 1. Rev. 0 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 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 07948-001ADXL326 TABLE OF CONTENTS Features .............................................................................................. 1 Performance ................................................................................ 10 Applications ....................................................................................... 1 Applications Information .............................................................. 11 General Description ......................................................................... 1 Power Supply Decoupling ......................................................... 11 Functional Block Diagram .............................................................. 1 Setting the Bandwidth Using CX, CY, and CZ .......................... 11 Revision History ............................................................................... 2 Self Test ........................................................................................ 11 Specif icat ions ..................................................................................... 3 Design Trade-Offs for Selecting Filter Characteristics: The Noise/BW Trade-Off .................................................................. 11 Absolute Maximum Ratings ............................................................ 4 Use with Operating Voltages Other Than 3 V .......................... 11 ESD Caution .................................................................................. 4 Axes of Acceleration Sensitivity ............................................... 12 Pin Configuration and Function Descriptions ............................. 5 Layout and Design Recommendations ................................... 13 Typical Performance Characteristics ............................................. 6 Outline Dimensions ....................................................................... 14 Theory of Operation ...................................................................... 10 Ordering Guide .......................................................................... 14 Mechanical Sensor ...................................................................... 10 REVISION HISTORY 8/09Revision 0: Initial Version Rev. 0 Page 2 of 16