50/s Yaw Rate Gyro ADXRS624 FEATURES GENERAL DESCRIPTION Complete rate gyroscope on a single chip The ADXRS624 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 create a functionally complete and low cost angular 2000 g powered shock survivability rate sensor integrated with all required electronics on one chip. Ratiometric to referenced supply The manufacturing technique for this device is the same high 5 V single-supply operation volume BiMOS process used for high reliability automotive 105C operation airbag accelerometers. Self-test on digital command Ultrasmall and light (<0.15 cc, <0.5 gram) The output signal, RATEOUT (1B, 2A), is a voltage proportional Temperature sensor output to angular rate about the axis normal to the top surface of the RoHS compliant package. The output is ratiometric with respect to a provided Qualified for automotive applications reference supply. A single external resistor between SUMJ and RATEOUT can be used to lower the scale factor. An external APPLICATIONS capacitor sets the bandwidth. Other external capacitors are Navigation systems required for operation. Inertial measurement units Platform stabilization A temperature output is provided for compensation techniques. Robotics Two digital self-test inputs electromechanically excite the sensor to test proper operation of both the sensor and the signal conditioning circuits. The ADXRS624 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 ADXRS624 AV ADXRS624 CC 100nF 25k SELF-TEST 25k AT 25C AGND DEMOD MECHANICAL DRIVE AC VGA SENSOR AMP AMP +5V 200k 5% V DD CHARGE PUMP AND VOLTAGE 100nF REGULATOR PGND CP1 CP2 CP3 CP4 CP5 SUMJ RATEOUT 100nF 22nF 22nF C OUT Figure 1. ADXRS624 Block Diagram Rev. A 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. 08999-001ADXRS624 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 ADXRS624 and Supply Ratiometricity ......................................9 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. 0 to Rev. A Changes to Ordering Guide .......................................................... 11 4/10Revision 0: Initial Version Rev. A Page 2 of 12