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ADXL311 Scheda tecnica(PDF) 1 Page - Analog Devices |
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ADXL311 Scheda tecnica(HTML) 1 Page - Analog Devices |
1 / 12 page Ultracompact ±2g Dual-Axis Accelerometer ADXL311 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 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. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 © 2005 Analog Devices, Inc. All rights reserved. FEATURES High resolution Dual-axis accelerometer on a single IC chip 5 mm × 5 mm × 2 mm LCC package Low power <400 µA (typ) X-axis and Y-axis aligned to within 0.1° (typ) BW adjustment with a single capacitor Single-supply operation High shock survival APPLICATIONS Tilt and motion sensing Smart hand-held devices Computer security Input devices Pedometers and activity monitors Game controllers Toys and entertainment products FUNCTIONAL BLOCK DIAGRAM COM YOUT XOUT VDD CX ADXL311 Y SENSOR 3.0V SELF TEST X SENSOR XFILT 32k Ω YFILT 32k Ω CY CDC OSCILLATOR DEMOD DEMOD Figure 1. GENERAL DESCRIPTION The ADXL311 is a low power, complete dual-axis accelerometer with signal conditioned voltage outputs, all on a single monolithic IC. The ADXL311 is built using the same proven iMEMS® process used in over 180 million Analog Devices accelerometers shipped to date, with demonstrated 1 FIT reliability (1 failure per 1 billion device operating hours). The ADXL311 measures acceleration with a full-scale range of ±2 g. The ADXL311 can measure both dynamic acceleration (e.g., vibration) and static acceleration (e.g., gravity). The outputs are analog voltages proportional to acceleration. The typical noise floor is 300 µg/√Hz, allowing signals below 2 mg (0.1° of inclination) to be resolved in tilt sensing appli- cations using narrow bandwidths (10 Hz). The user selects the bandwidth of the accelerometer using capacitors CX and CY at the XOUT and YOUT pins. Bandwidths of 1 Hz to 3 kHz can be selected to suit the application. The ADXL311 is available in a 5 mm × 5 mm × 2 mm, 8-terminal, hermetic LCC package. |
Codice articolo simile - ADXL311_15 |
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Descrizione simile - ADXL311_15 |
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