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PDF ADXRS150 Data sheet ( Hoja de datos )
| Número de pieza | ADXRS150 | |
| Descripción | Single Chip Yaw Rate Gyro | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ADXRS150 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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±150°/s Single Chip Yaw Rate
Gyro with Signal Conditioning
ADXRS150
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 operation
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
GENERAL DESCRIPTION
The ADXRS150 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 proportional
to the angular rate about the axis normal to the top surface 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 required for operation
(see Figure 21).
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
ADXRS150 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
≈9kΩ ±35% ≈9kΩ ±35%
RESONATOR LOOP
ROUT
180kΩ 1%
1B
RATEOUT
2A
2.5V REF
1E 2.5V
CHARGE PUMP/REG.
12V
PTAT
3G TEMP
ADXRS150
PDD
4A 5A
7E
CP2 CP1
22nF
6G 7F
PGND
100nF
Figure 1.
6A 7B 7C
CP4 CP3
22nF
7D
CP5
47nF
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
www.analog.com
Fax: 781.326.8703 © 2003 Analog Devices, Inc. All rights reserved.
1 page  
TYPICAL PERFORMANCE CHARACTERISTICS
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
–0.05
0.00 0.05 0.10 0.15 0.20
TIME – Sec
Figure 3. Rate Sensing Start-Up Time
0.25
2.570
2.565
2.560
2.555
2.550
2.545
2.540
0
600
1200
1800
2400
3000
TIME – Sec
Figure 4. Null Stability for 1 Hour
3600
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
–55
–30 –5 20 45 70
TEMPERATURE – °C
Figure 5. Temperature Sensor Output
95
ADXRS150
2.570
2.565
2.560
2.555
2.550
2.545
NO PRIOR WARMUP, 0.6Hz SAMPLING
2.540
0
30 60 90 120 150
TIME – Sec
Figure 6. Null Settling Time
180
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
1 10 100
TIME – Sec
Figure 7. Root Allan Variance vs. Averaging Time
2.5040
2.5035
2.5030
2.5025
2.5020
2.5015
2.5010
–40 –30 –20 –10 0 10 20 30 40 50 60 70 80
TEMPERATURE – °C
Figure 8. 2.5 V Voltage Reference vs. Temperature
Rev. A | Page 5 of 12
5 Page 
PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS
PGND
PDD CP5 CP3
CP4
7
6
ST1 CP1 5
ST2 CP2 4
TEMP
AVCC 3
2
1
AGND
G
2.5V CMID SUMJ
FEDC
B
RATEOUT
A
Figure 27. BGA-32 (Bottom View)
Table 3. Pin Function Descriptions—32-Lead BGA
Pin No.
6D, 7D
6A, 7B
6C, 7C
5A, 5B
4A, 4B
3A, 3B
1B, 2A
1C, 2C
1D, 2D
1E, 2E
1F, 2G
3F, 3G
4F, 4G
5F, 5G
6G, 7F
6E, 7E
Mnemonic
CP5
CP4
CP3
CP1
CP2
AVCC
RATEOUT
SUMJ
CMID
2.5V
AGND
TEMP
ST2
ST1
PGND
PDD
Description
HV Filter Capacitor—47 nF
Charge Pump Capacitor—22 nF
Charge Pump Capacitor—22 nF
+ Analog Supply
Rate Signal Output
Output Amp Summing Junction
HF Filter Capacitor—100 nF
2.5 V Precision Reference
Analog Supply Return
Temperature Voltage Output
Self-Test for Sensor 2
Self-Test for Sensor 1
Charge Pump Supply Return
+ Charge Pump Supply
ADXRS150
Rev. A | Page 11 of 12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ADXRS150.PDF ] | |
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