High Performance, Wide Bandwidth Accelerometer ADXL001 Using the Analog Devices, Inc. proprietary fifth-generation FEATURES iMEMs process enables the ADXL001 to provide the desired High performance accelerometer dynamic range that extends from 70 g to 500 g in combin- 70 g, 250 g, and 500 g wideband ranges available ation with 22 kHz of bandwidth. The accelerometer output 22 kHz resonant frequency structure channel passes through a wide bandwidth differential-to-single- High linearity: 0.2% of full scale ended converter, which allows access to the full mechanical Low noise: 4 mg/Hz performance of the sensor. Sensitive axis in the plane of the chip Frequency response down to dc The part can operate on voltage supplies from 3.3 V to 5 V. Full differential signal processing The ADXL001 also has a self-test (ST) pin that can be asserted to High resistance to EMI/RFI verify the full electromechanical signal chain for the accelerometer Complete electromechanical self-test channel. Output ratiometric to supply The ADXL001 is available in the industry-standard 8-terminal Velocity preservation during acceleration input overload LCC and is rated to work over the extended industrial temperature Low power consumption: 2.5 mA typical range (40C to +125C). 8-terminal, hermetic ceramic, LCC package 15 APPLICATIONS 12 9 Vibration monitoring Shock detection 6 Sports diagnostic equipment 3 Medical instrumentation 0 Industrial monitoring 3 6 GENERAL DESCRIPTION 9 The ADXL001 is a major advance over previous generations of accelerometers providing high performance and wide bandwidth. 12 This part is ideal for industrial, medical, and military applications 15 1 10 100 1k 10k 100k where wide bandwidth, small size, low power, and robust FREQUENCY (Hz) performance are essential. Figure 1. Sensor Frequency Response FUNCTIONAL BLOCK DIAGRAM V S V DD ADXL001 TIMING GENERATOR V DD2 OUTPUT DIFFERENTIAL DEMOD MOD X AMPLIFIER OUT SENSOR AMP SELF-TEST COM ST Figure 2. Rev. A 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 2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. OBSOLETE RESPONSE (dB) 07510-001 07510-102ADXL001 TABLE OF CONTENTS Features .............................................................................................. 1 Design Principles ........................................................................ 11 Applications ....................................................................................... 1 Mechanical Sensor ..................................................................... 11 General Description ......................................................................... 1 Applications Information .............................................................. 12 Functional Block Diagram .............................................................. 1 Application Circuit ..................................................................... 12 Revision History ............................................................................... 2 Self-Test ....................................................................................... 12 Specif icat ions ..................................................................................... 3 Acceleration Sensitive Axis ....................................................... 12 Specifications for 3.3 V Operation ............................................. 3 Operating Voltages Other Than 5 V ........................................ 12 Specifications for 5 V Operation ................................................ 4 Layout, Grounding, and Bypassing Considerations .................. 13 Recommended Soldering Profile ............................................... 5 Clock Frequency Supply Response .......................................... 13 Absolute Maximum Ratings ............................................................ 6 Power Supply Decoupling ......................................................... 13 ESD Caution .................................................................................. 6 Electromagnetic Interference ................................................... 13 Pin Configuration and Function Descriptions ............................. 7 Outline Dimensions ....................................................................... 14 Typical Performance Characteristics ............................................. 8 Ordering Guide .......................................................................... 14 Theory of Operation ...................................................................... 11 REVISION HISTORY 2/10Rev. 0 to Rev. A Added -250 and -500 models ............................................ Universal Changes to Table 1 ............................................................................ 3 Changes to Table 2 ............................................................................ 4 Added Figure 9 through Figure 18 ................................................. 8 Changes to Ordering Guide .......................................................... 14 1/09Revision 0: Initial Version Rev. A Page 2 of 16 OBSOLETE