Small, Low Power, 3-Axis 3 g Accelerometer ADXL335 FEATURES GENERAL DESCRIPTION 3-axis sensing The ADXL335 is a small, thin, low power, complete 3-axis accel- Small, low profile package erometer with signal conditioned voltage outputs. The product 4 mm 4 mm 1.45 mm LFCSP measures acceleration with a minimum full-scale range of 3 g. Low power : 350 A (typical) It can measure the static acceleration of gravity in tilt-sensing Single-supply operation: 1.8 V to 3.6 V applications, as well as dynamic acceleration resulting from 10,000 g shock survival motion, shock, or vibration. Excellent temperature stability The user selects the bandwidth of the accelerometer using the BW adjustment with a single capacitor per axis 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 the 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 The ADXL335 is available in a small, low profile, 4 mm applications 4 mm 1.45 mm, 16-lead, plastic lead frame chip scale package Mobile devices (LFCSP LQ). Gaming systems Disk drive protection Image stabilization Sports and health devices FUNCTIONAL BLOCK DIAGRAM +3V V S X ADXL335 ~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. B 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 20092010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 07808-001ADXL335 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 ........................... 12 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 1/10Rev. A to Rev. B Changes to Figure 21 ........................................................................ 9 7/09Rev. 0 to Rev. A Changes to Figure 22 ........................................................................ 9 Changes to Outline Dimensions ................................................... 14 1/09Revision 0: Initial Version Rev. B Page 2 of 16