300/sec Yaw Rate Gyro ADXRS620 FEATURES GENERAL DESCRIPTION Qualified for automotive applications The ADXRS620 is a complete angular rate sensor (gyroscope) Complete rate gyroscope on a single chip that uses the Analog Devices, Inc., surface-micromachining Z-axis (yaw rate) response process to create a functionally complete and low cost angular High vibration rejection over wide frequency rate sensor integrated with all required electronics on one chip. 2000 g powered shock survivability The manufacturing technique for this device is the same high Ratiometric to referenced supply volume BiMOS process that is used for high reliability automotive 5 V single-supply operation airbag accelerometers. 105C operation Self-test on digital command The ADXRS620 is an automotive grade gyroscope that is 100% Ultrasmall and light (<0.15 cc, <0.5 gram) pin, package, temperature, and function compatible to the Temperature sensor output available industrial grade ADXRS652 gyro. Automotive grade RoHS compliant gyroscopes have more extensive guaranteed minimum/maximum specifications due to automotive testing. APPLICATIONS The output signal, RATEOUT (1B, 2A), is a voltage that is Vehicle chassis rollover sensing proportional to angular rate about the axis normal to the top Inertial measurement units surface of the package. The output is ratiometric with respect Platform stabilization 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 ADXRS620 is available in a 7 mm 7 mm 3 mm BGA ceramic package. FUNCTIONAL BLOCK DIAGRAM +5V (ADC REF) 100nF +5V ST2 ST1 TEMP V RATIO AV ADXRS620 CC 100nF SELF-TEST 25k 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. 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 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 2010 Analog Devices, Inc. All rights reserved. 08887-001ADXRS620 TABLE OF CONTENTS Features .............................................................................................. 1 Setting Bandwidth .........................................................................9 Applications ....................................................................................... 1 Temperature Output and Calibration .........................................9 General Description ......................................................................... 1 Calibrated Performance ................................................................9 Functional Block Diagram .............................................................. 1 ADXRS620 and Supply Ratiometricity ................................... 10 Revision History ............................................................................... 2 Null Adjustment ......................................................................... 10 Specifications ..................................................................................... 3 Self-Test Function ...................................................................... 10 Absolute Maximum Ratings ............................................................ 4 Continuous Self-Test .................................................................. 10 Rate Sensitive Axis ....................................................................... 4 Outline Dimensions ....................................................................... 11 ESD Caution .................................................................................. 4 Ordering Guide .......................................................................... 11 Pin Configuration and Function Descriptions ............................. 5 Automotive Products ................................................................. 11 Typical Performance Characteristics ............................................. 6 Theory of Operation ........................................................................ 9 REVISION HISTORY 9/10Rev. A to Rev. B Changes to Ordering Guide .......................................................... 11 7/10Rev. 0 to Rev. A Changes to Features Section and General Description Section . 1 Added Note 2 to Ordering Guide ................................................. 11 Added Automotive Products Section........................................... 11 3/10Revision 0: Initial Version Rev. B Page 2 of 12