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ADXRS300ABG

更新时间: 2024-11-05 22:11:11
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
8页 376K
描述
【300∑/s Single Chip Yaw Rate Gyro with Signal Conditioning

ADXRS300ABG 数据手册

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± ±330°/s SinglsꢀCSꢁsꢂYasꢃYꢄls  
GyrosaSꢄCs SniYgsꢀoidSꢄSoiSin  
s
ADXꢃ ±33  
FEATURES  
GENERAL DESCRIPTION  
Complete rate gyroscope on a single chip  
Z-axis (yaw rate) response  
High vibration rejection over wide frequency  
2000 g powered shock operation  
Self-test on digital command  
The ADXRS300 is a complete angular rate sensor (gyroscope)  
that uses Analog Devices’ 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 vol-  
ume BIMOS process used for high reliability automotive airbag  
accelerometers.  
Temperature sensor output  
Precision voltage reference output  
Absolute rate output for precision applications  
5 V single-supply operation  
The output signal, RATEOUT (1B, 2A), is a voltage proportional  
to angular rate about the axis normal to the top surface of the  
package (see Figure 3). A single external resistor can be used to  
lower the scale factor. An external capacitor is used to set the  
bandwidth. Other external capacitors are required for operation  
(see Figure 4).  
Ultrasmall and light (< 0.15 cc, < 0.5 gram)  
APPLICATIONS  
Vehicle chassis rollover sensing  
Inertial measurement units  
Platform stabilization  
A precision reference and a temperature output are also pro-  
vided for compensation techniques. Two digital self-test inputs  
electromechanically excite the sensor to test proper operation of  
both sensors and the signal conditioning circuits. The  
ADXRS300 is available in a 7 mm × 7 mm × 3 mm BGA  
chip-scale package.  
FUNCTIONAL BLOCK DIAGRAM  
+
5V  
C
OUT  
100nF  
100nF  
SUMJ  
AGND  
CMID  
AVCC  
3A  
1D  
1C  
2G  
1F  
ST1  
5G  
SELF  
TEST  
R
OUT  
CORIOLIS SIGNAL CHANNEL  
R
ST2 4G  
R
180k  
1%  
SEN1  
35%  
SEN2  
π DEMOD  
RATE  
1B  
2A  
7k  
±
7k  
±
35%  
SENSOR  
RATEOUT  
2.5V  
RESONATOR LOOP  
2.5V REF  
PTAT  
1E  
3G  
TEMP  
12V  
CHARGE PUMP/REG.  
PDD  
4A  
CP2  
5A  
7E  
6G  
PGND  
7F  
6A  
7B  
7C  
CP3  
7D  
CP5  
CP4  
CP1  
22nF  
47nF  
ADXRS300  
100nF  
22nF  
Figure 1.  
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 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. Trademarks and  
registered trademarks are the property of their respective companies.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.326.8703  
www.analog.com  
© 2003 Analog Devices, Inc. All rights reserved.  

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