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ADXRS622WBBGZA-RL Scheda tecnica(PDF) 1 Page - Analog Devices |
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ADXRS622WBBGZA-RL Scheda tecnica(HTML) 1 Page - Analog Devices |
1 / 12 page ±250°/sec Yaw Rate Gyroscope ADXRS622 Rev. C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2009–2010 Analog Devices, Inc. All rights reserved. FEATURES Complete rate gyroscope on a single chip Z-axis (yaw rate) response High vibration rejection over wide frequency 2000 g powered shock survivability Ratiometric to referenced supply 5 V single-supply operation 105°C operation Self-test on digital command Ultrasmall and light: <0.15 cc, <0.5 gram Temperature sensor output RoHS compliant Qualified for automotive applications APPLICATIONS Vehicle chassis rollover sensing Inertial measurement units Platform stabilization GENERAL DESCRIPTION The ADXRS622 is a complete angular rate sensor (gyroscope) that uses the Analog Devices, Inc., surface-micromachining process to make a functionally complete and low cost angular rate sensor, integrated with all of the required electronics on one chip. The manufacturing technique for this device is the same high volume BiMOS process used for high reliability automotive airbag accelerometers. The ADXRS622 is an automotive grade gyroscope that has 100% pin, package, temperature, and function compatible to the available industrial grade ADXRS652 gyroscope. Automotive grade gyroscopes have more extensive guaranteed minimum/ maximum specifications due to automotive testing. The output signal, RATEOUT (1B, 2A), is a voltage proportional to the angular rate about the axis that is normal to the top surface of the package. The output is ratiometric with respect to a provided reference supply. An external capacitor sets the bandwidth. Other external capacitors are required for operation. A temperature output is provided for compensation techniques. Two digital self-test inputs electromechanically excite the sensor to test proper operation of both the sensor and the signal condi- tioning circuits. The ADXRS622 is available in a 7 mm × 7 mm × 3 mm BGA chip-scale package. FUNCTIONAL BLOCK DIAGRAM VDD AGND PGND AVCC ST2 ST1 TEMP VRATIO CP1 CP2 CP3 CP4 CP5 SUMJ RATEOUT DEMOD 180k Ω ±1% 22nF 100nF 22nF 100nF 100nF 100nF DRIVE AMP MECHANICAL SENSOR CHARGE PUMP AND VOLTAGE REGULATOR COUT 5V 5V 5V (ADC REF) AC AMP VGA 25k Ω @ 25°C ADXRS622 25k Ω SELF-TEST Figure 1. |
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