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Analog Devices Semiconductor Electronic Components Datasheet

ADXRS622 Datasheet

Yaw Rate Gyroscope

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ADXRS622 pdf
±250°/sec Yaw Rate Gyroscope
ADXRS622
www.daFtaEsAhTeeUt4RuE.cSom
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
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 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
5V
(ADC REF)
100nF
5V
100nF
AVCC
AGND
ST2 ST1
SELF-TEST
DRIVE
AMP
MECHANICAL
SENSOR
TEMP VRATIO
ADXRS622
25k25k
@ 25°C
AC
AMP
VGA
DEMOD
5V
VDD
100nF
PGND
CHARGE PUMP
AND VOLTAGE
REGULATOR
180k±1%
CP1 CP2 CP3 CP4 CP5 SUMJ
RATEOUT
22nF
22nF
100nF
COUT
Figure 1.
Rev. 0
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
rights of third parties that may result from its use. Specifications subject to change without notice. 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 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

ADXRS622 Datasheet

Yaw Rate Gyroscope

No Preview Available !

ADXRS622 pdf
ADXRS622
TABLE OF CONTENTS
Features .............................................................................................. 1 
Applications....................................................................................... 1 
General Description ......................................................................... 1 
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Functional Block Diagram .............................................................. 1 
Revision History ............................................................................... 2 
Specifications..................................................................................... 3 
Absolute Maximum Ratings............................................................ 4 
Rate Sensitive Axis ....................................................................... 4 
ESD Caution.................................................................................. 4 
Pin Configuration and Function Descriptions............................. 5 
Typical Performance Characteristics ............................................. 6 
REVISION HISTORY
1/09 —Revision 0: Initial Version
Theory of Operation .........................................................................9 
Setting Bandwidth.........................................................................9 
Temperature Output and Calibration.........................................9 
Calibrated Performance................................................................9 
ADXRS622 and Supply Ratiometricity ................................... 10 
Null Adjustment ......................................................................... 10 
Self-Test Function ...................................................................... 10 
Continuous Self-Test.................................................................. 10 
Outline Dimensions ....................................................................... 11 
Ordering Guide .......................................................................... 11 
Rev. 0 | Page 2 of 12


Part Number ADXRS622
Description Yaw Rate Gyroscope
Maker Analog Devices
Total Page 12 Pages
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