Datasheet ADXL325 (Analog Devices)

Small, Low Power, 3-Axis ±5 g Accelerometer ADXL325 FEATURES GENERAL DESCRIPTION 3-axis sensing
The ADXL325 is a small, low power, complete 3-axis accelerometer
Small, low profile package
with signal conditioned voltage outputs. The product measures
4 mm × 4 mm × 1.45 mm LFCSP
acceleration with a minimum full-scale range of ±5 g. It can
Low power: 350 μA typical
measure the static acceleration of gravity in tilt-sensing applications,
Single-supply operation: 1.8 V to 3.6 V
as well as dynamic acceleration, resulting from motion, shock,
10,000 g shock survival
or vibration.
Excellent temperature stability
The user selects the bandwidth of the accelerometer using
Bandwidth adjustment with a single capacitor per axis
the CX, CY, and CZ capacitors at the XOUT, YOUT, and ZOUT pins.
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
APPLICATIONS
550 Hz for the Z axis.
Cost-sensitive, low power, motion- and tilt-sensing applications
The ADXL325 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 VS ADXL325 X ~32kΩ OUT OUTPUT AMP C 3-AXIS X SENSOR ~32kΩ YOUT CDC AC AMP DEMOD OUTPUT AMP CY ~32kΩ ZOUT OUTPUT AMP CZ COM ST
-001 46 79 0 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 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION MECHANICAL SENSOR PERFORMANCE APPLICATIONS INFORMATION POWER SUPPLY DECOUPLING SETTING THE BANDWIDTH USING CX, CY, AND CZ SELF TEST DESIGN TRADE-OFFS FOR SELECTING FILTER CHARACTERISTICS: THE NOISE/BW TRADE-OFF USE WITH OPERATING VOLTAGES OTHER THAN 3 V AXES OF ACCELERATION SENSITIVITY LAYOUT AND DESIGN RECOMMENDATIONS OUTLINE DIMENSIONS ORDERING GUIDE