250/sec Yaw Rate Gyroscope ADXRS622 FEATURES GENERAL DESCRIPTION Complete rate gyroscope on a single chip The ADXRS622 is a complete angular rate sensor (gyroscope) Z-axis (yaw rate) response that uses the Analog Devices, Inc., surface-micromachining High vibration rejection over wide frequency process to make a functionally complete and low cost angular 2000 g powered shock survivability rate sensor, integrated with all of the required electronics on Ratiometric to referenced supply one chip. The manufacturing technique for this device is the 5 V single-supply operation same high volume BiMOS process used for high reliability 105C operation automotive airbag accelerometers. Self-test on digital command The ADXRS622 is an automotive grade gyroscope that has Ultrasmall and light: <0.15 cc, <0.5 gram 100% pin, package, temperature, and function compatible to the Temperature sensor output available industrial grade ADXRS652 gyroscope. Automotive RoHS compliant grade gyroscopes have more extensive guaranteed minimum/ Qualified for automotive applications maximum specifications due to automotive testing. The output signal, RATEOUT (1B, 2A), is a voltage proportional to APPLICATIONS the angular rate about the axis that is normal to the top surface of Vehicle chassis rollover sensing the package. The output is ratiometric with respect to a provided Inertial measurement units reference supply. An external capacitor sets the bandwidth. Other Platform stabilization 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 5V (ADC REF) 100nF 5V ST2 ST1 TEMP V RATIO AV ADXRS622 CC 100nF 25k SELF-TEST 25k 25C AGND DEMOD MECHANICAL DRIVE AC VGA SENSOR AMP AMP 5V 180k 1% V DD CHARGE PUMP AND VOLTAGE 100nF REGULATOR PGND CP1 CP2 CP3 CP4 CP5 SUMJ RATEOUT 100nF 22nF 22nF C OUT Figure 1. Rev. C 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. Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 20092010 Analog Devices, Inc. All rights reserved. 07754-001ADXRS622 TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation .........................................................................9 Applications ....................................................................................... 1 Setting Bandwidth .........................................................................9 General Description ......................................................................... 1 Temperature Output and Calibration .........................................9 Functional Block Diagram .............................................................. 1 Calibrated Performance ................................................................9 Revision History ............................................................................... 2 ADXRS622 and Supply Ratiometricity ................................... 10 Specifications ..................................................................................... 3 Null Adjustment ......................................................................... 10 Absolute Maximum Ratings ............................................................ 4 Self-Test Function ...................................................................... 10 Rate Sensitive Axis ....................................................................... 4 Continuous Self-Test .................................................................. 10 ESD Caution .................................................................................. 4 Outline Dimensions ....................................................................... 11 Pin Configuration and Function Descriptions ............................. 5 Ordering Guide .......................................................................... 11 Typical Performance Characteristics ............................................. 6 Automotive Products ................................................................. 11 REVISION HISTORY 9/10Rev. B to Rev. C Changes to Ordering Guide .......................................................... 11 8/10Rev. A to Rev. B Changes to Features Section and General Description Section . 1 Added Automotive Applications Section .................................... 11 2/10Rev. 0 to Rev. A Updated Outline Dimensions ....................................................... 11 Changes to Ordering Guide .......................................................... 11 2/09Revision 0: Initial Version Rev. C Page 2 of 12