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ADXRS450 데이터시트 PDF




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부품번호 ADXRS450 기능
기능 High Performance - Digital Output Gyroscope
제조업체 Analog Devices
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ADXRS450 데이터시트, 핀배열, 회로
Preliminary Technical Data
FEATURES
Complete rate gyroscope on a single chip
±300°/sec angular rate sensing
High vibration rejection over a wide frequency range
Excellent 25°/hr null offset stability
Internally temperature compensated
2000 g powered shock survivability
SPI digital output with 16-bit data-word
Low noise and low power
3.3 V and 5V operation
−40°C to +105°C operation
Ultra small, light, and RoHS compliant
Two package options
Low cost SOIC_CAV package for yaw rate (Z-axis) response
Innovative ceramic vertical mount package, which can be
oriented for pitch, roll, or yaw response
APPLICATIONS
Rotation sensing medical applications
Rotation sensing industrial and instrumentation
High performance platform stabilization
High Performance,www.DataSheet4U.com
Digital Output Gyroscope
ADXRS450
GENERAL DESCRIPTION
The ADXRS450 is an angular rate sensor (gyroscope) intended
for industrial, medical, instrumentation, stabilization, and other
high performance applications. An advanced, differential, quad
sensor design rejects the influence of linear acceleration, enabling
the ADXRS450 to operate in exceedingly harsh environments
where shock and vibration are present.
The ADXRS450 utilizes an internal, continuous self-test archi-
tecture. The integrity of the electromechanical system is checked
by applying a high frequency electrostatic force to the sense
structure to generate a rate signal that can be differentiated from
the baseband rate data and internally analyzed.
The ADXRS450 is capable of sensing angular rate of up to
±300°/sec. Angular rate data is presented as a 16-bit word, as
part of a 32-bit SPI message.
The ADXRS450 is available in a cavity plastic 16-lead SOIC
(SOIC_CAV) and an SMT-compatible vertical mount package
(LCC_V), and is capable of operating across both a wide voltage
range (3.3 V to 5 V) and temperature range (−40°C to +105°C).
CP5
VX
FUNCTIONAL BLOCK DIAGRAM
HIGH VOLTAGE
GENERATION
ADXRS450
Z-AXIS ANGULAR
RATE SENSOR
HV DRIVE
CLOCK
PHASE DIVIDER
LOCKED
LOOP AMPLITUDE
DETECT
BAND-PASS
FILTER
ADC 12
DEMOD
Q DAQ
P DAQ
Q FILTER
ST
CONTROL
ALU
DECIMATION
FILTER
TEMPERATURE
CALIBRATION
FAULT
DETECTION
EEPROM
Figure 1.
LDO
REGULATOR
PDD
DVDD
AVDD
SPI
INTERFACE
MOSI
MISO
SCLK
CS
DVSS
PSS
AVSS
Rev. PrA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalog Devicesforitsuse,norforanyinfringementsofpatentsorother
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 owners.
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
©2010 Analog Devices, Inc. All rights reserved.




ADXRS450 pdf, 반도체, 판매, 대치품
ADXRS450
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Acceleration (Any Axis, Unpowered, 0.5 ms)
Acceleration (Any Axis, Powered, 0.5 ms)
Supply Voltage (PDD)
Output Short-Circuit Duration (Any Pin to
Ground)
Temperature Range
Operating
LCC_V Package
SOIC_CAV Package
Storage
LCC_V Package
SOIC_CAV Package
Rating
2000 g
2000 g
−0.3 V to +6.0 V
Indefinite
−40°C to +125°C
−40°C to +125°C
−65°C to +150°C
−40°C to +150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, for a device
soldered in a printed circuit board (PCB) for surface-mount
packages.
Table 3. Thermal Resistance
Package Type
16-Lead SOIC_CAV
14-Lead Ceramic LCC_V
θJA
191.5
185.5
θJC
25
23
Unit
°C/W
°C/W
Preliminary Technical Datawww.DataSheet4U.com
RATE SENSITIVE AXIS
The ADXRS450 is available in two package options. The
SOIC_CAV package configuration is for applications that
require a Z-axis (yaw) rate sensing device. The device transmits
a positive going LSB count for clockwise rotation about the axis
normal to the package top. Conversely, a negative going LSB
count is transmitted for counterclockwise rotation about the
Z-zxis. The vertical mount package (LCC_V) option is for
applications that require rate sensing in the axes parallel to the
plane of the PCB (pitch and roll). The same principles of LSB
count transmission for clockwise and counterclockwise rotation
about the parallel axes apply to the LCC_V option. See Figure 2
for details.
RATE
AXIS
Z-AXIS
LONGITUDINAL
AXIS
+
7
1
A1 A B C D E F G
LATERAL AXIS
RATE
AXIS
+8
17
VMP PACKAGE
Figure 2. Rate Signal Increases with Clockwise Rotation
ESD CAUTION
Rev. PrA | Page 4 of 28

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ADXRS450 전자부품, 판매, 대치품
Preliminary Technical Data
TYPICAL PERFORMANCE CHARACTERISTICS
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
ERROR (°/sec)
Figure 6. SOIC_CAV Null Error @ 25°C
0.30
0.25
0.20
0.15
0.10
0.05
0
ERROR (°/sec)
Figure 7. SOIC_CAV Null Drift over Temperature
0.25
0.20
0.15
0.10
0.05
0
CHANGE IN SENSITIVITY (%)
Figure 8. SOIC_CAV Sensitivity Error @ 25°C
ADXRS450www.DataSheet4U.com
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
–2.0 –1.6 –1.2 –0.8 –0.4 0
0.4 0.8 1.2 1.6 2.0
ERROR (°/sec)
Figure 9. LCC_V Null Error @ 25°C
0.30
0.25
0.20
0.15
0.10
0.05
0
ERROR (°/sec)
Figure 10. LCC_V Null Drift over Temperature
0.25
0.20
0.15
0.10
0.05
0
CHANGE IN SENSITIVITY (%)
Figure 11. LCC_V Sensitivity Error @ 25°C
Rev. PrA | Page 7 of 28

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