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PDF ( 数据手册 , 数据表 ) AD22304

零件编号 AD22304
描述 Single Chip Yaw Rate Gyro
制造商 Analog Devices
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AD22304 数据手册, 描述, 功能
±80°/s Single Chip Yaw Rate
Gyro with Signal Conditioning
FEATURES
Complete rate gyroscope on a single chip
Z-axis (yaw rate) response
High vibration rejection over wide frequency
0.05°/s/Hz noise
2000 g powered shock survivability
Self-test on digital command
Temperature sensor output
Precision voltage reference output
Absolute rate output for precision applications
5 V single-supply operation
Ultrasmall and light (< 0.15 cc, < 0.5 gram)
APPLICATIONS
GPS navigation systems
Vehicle stability control
Inertial measurement units
Guidance and control
Platform stabilization
AD22304
GENERAL DESCRIPTION
The AD22304 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
volume BIMOS process used for high reliability automotive
airbag accelerometers.
The output signal, RATEOUT (1B, 2A), is a voltage propor-
tional to the angular rate about the axis normal to the top sur-
face of the package (see Figure 2). 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 re-
quired for operation (see Figure 22).
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 the operation of
both sensors and the signal conditioning circuits. The AD22304
is available in a 7 mm × 7 mm × 3 mm BGA surface-mount
package.
ST1 5G
ST2 4G
FUNCTIONAL BLOCK DIAGRAM
AVCC
3A
+ 5V
100nF
AGND
2G 1F
100nF
CMID
1D
COUT
SUMJ
1C
SELF
TEST
RATE
SENSOR
CORIOLIS SIGNAL CHANNEL
π DEMOD
RSEN1
RSEN2
9k±35% 9k±35%
RESONATOR LOOP
ROUT
180k1%
1B
RATEOUT
2A
2.5V REF
1E 2.5V
CHARGE PUMP/REG.
12V
PTAT
3G TEMP
ADAXDR2S213504
PDD
4A 5A
7E
CP2 CP1
22nF
6G 7F
PGND
100nF
Figure 1.
6A 7B 7C
CP4 CP3
22nF
7D
CP5
47nF
Rev. 0-Preliminary
Information furnished by Analog Devices is believed to be accurate and reli-
able. 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 Ana-
log Devices. Trademarks and registered trademarks are the property of their
respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106,
U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.
Free Datasheet http://www.datasheet4u.com/







AD22304 pdf, 数据表
AD22304
Behavior under Various Shock Test Conditions
Figure 16. Shock Test 100 g, 5 ms in Lateral Axis (40 Hz)
Figure 19. Shock Test 100 g, 5 ms in Longitudinal Axis (40 Hz)
Figure 17. Hi-g Shock Test in Lateral Axis (40 Hz)
Figure 20. Hi-g Shock Test, Lateral Axis, 10× Time Base (40 Hz)
Figure 18. Hi-g Shock in Rate Axis (40 Hz)
Figure 21. Hi-g Shock, Rate Axis, BW Reduced to 8 Hz
Rev. C | Page 8 of 12
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