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ADXRS614 데이터시트(PDF) 1 Page - Analog Devices |
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ADXRS614 데이터시트(HTML) 1 Page - Analog Devices |
1 / 12 page ±50°/s Yaw Rate Gyro ADXRS614 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other 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 ©2007 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 APPLICATIONS Navigation systems Inertial measurement units Platform stabilization Robotics GENERAL DESCRIPTION The ADXRS614 is a complete angular rate sensor (gyroscope) that uses the Analog Devices, Inc. surface-micromachining process to create a functionally complete and low cost angular rate sensor integrated with all 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 output signal, RATEOUT (1B, 2A), is a voltage proportional to angular rate about the axis normal to the top surface of the package. The output is ratiometric with respect to a provided reference supply. A single external resistor between SUMJ and RATEOUT can be used to lower the scale factor. 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 conditioning circuits. The ADXRS614 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 200kΩ ±5% 22nF 100nF 22nF 100nF 100nF 100nF DRIVE AMP MECHANICAL SENSOR CHARGE PUMP AND VOLTAGE REGULATOR COUT +5V +5V +5V (ADC REF) AC AMP VGA 25kΩ @ 25°C ADXRS614 25kΩ SELF-TEST Figure 1. ADXRS614 Block Diagram |
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