Datenblatt-Suchmaschine für elektronische Bauteile |
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ADXL190WQC Datenblatt(PDF) 1 Page - Analog Devices |
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ADXL190WQC Datenblatt(HTML) 1 Page - Analog Devices |
1 / 5 page 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 rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a ADXL190* One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1999 Low Cost 100 g Single Axis Accelerometer with Analog Output FUNCTIONAL BLOCK DIAGRAM SELF-TEST +VS 2 25k 5k ADXL190 GAIN AMP ZERO g ADJUST COM 0.1 F BUFFER AMP DEMODULATOR SENSOR +VS TP (DO NOT CONNECT) VOUT 9 CLOCK iMEMS is a registered trademark of Analog Devices, Inc. *Patent Pending. FEATURES iMEMS ® Single Chip IC Accelerometer 40 Milli- g Resolution Low Power 2 mA 400 Hz Bandwidth +5.0 V Single Supply Operation 2000 g Shock Survival APPLICATIONS Shock and Vibration Measurement Machine Health Shipping Recorders Military Fuze, Safe and Arm GENERAL DESCRIPTION The ADXL190 is a complete acceleration measurement system on a single monolithic IC. It contains a polysilicon surface- micromachined sensor and signal conditioning circuitry to implement an open-loop acceleration measurement architecture. The ADXL190 is capable of measuring both positive and nega- tive accelerations up to ±100 g, making it suitable for shock and vibration measurement. Typical noise floor is 4 mg/ √Hz allowing signals below 40 milli-g to be resolved. The ADXL190 can measure both dynamic accel- erations, (typical of vibration) or static accelerations, (such as inertial force or gravity). The ADXL190 has a two-pole Bessel switched-capacitor filter. Bessel filters, sometimes called linear phase filters, have a step response with minimal overshoot and a maximally flat group delay. The –3 dB frequency of the poles is preset at the factory to 400 Hz. These filters are also completely self-contained and buffered, requiring no external components. The product features a built-in self-test feature that exercises both the mechanical structure and electrical circuitry. When triggered by a logic high on the self-test pin, an electrostatic force acts on the beam equivalent to approximately 20% of full- scale acceleration input, and thus a proportional voltage change appears on the output pin. No external components other than a decoupling capacitor are required. The ADXL190 is available in a hermetic 14-lead surface mount cerpak, specified over the –40 °C to +105°C temperature range. |
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