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ADIS16334 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADIS16334
Beschreibung Low Profile Six Degree
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 20 Seiten
ADIS16334 Datasheet, Funktion
Low Profile
Six Degree of Freedom Inertial Sensor
ADIS16334
FEATURES
Triaxis digital gyroscope with digital range scaling
±75°/sec, ±150°/sec, ±300°/sec settings
Tight orthogonal alignment: <0.05°
Triaxis digital accelerometer: ±5 g
Wide sensor bandwidth: 330 Hz
Autonomous operation and data collection
No external configuration commands required
Start-up time: 180 ms
Factory-calibrated sensitivity, bias, and axial alignment
Calibration temperature range: −20°C to +70°C
SPI-compatible serial interface
Embedded temperature sensor
Programmable operation and control
Automatic and manual bias correction controls
Bartlett window FIR filter length, number of taps
Digital I/O: data ready, alarm indicator, general-purpose
Alarms for condition monitoring
Enable external sample clock input: up to 1.2 kHz
Single-command self-test
Single-supply operation: 4.75 V to 5.25 V
2000 g shock survivability
22 mm × 33 mm × 11 mm module with connector interface
Operating temperature range: −40°C to +105°C
GENERAL DESCRIPTION
The ADIS16334 iSensor® is a complete inertial system that includes
a triaxis gyroscope and triaxis accelerometer. Each sensor in the
ADIS16334 combines industry-leading iMEMS® technology
with signal conditioning that optimizes dynamic performance.
The factory calibration characterizes each sensor for sensitivity,
bias, alignment, and linear acceleration (gyro bias). As a result,
each sensor has its own dynamic compensation formulas that
provide accurate sensor measurements over a temperature
range of −20°C to +70°C.
The ADIS16334 provides a simple, cost-effective method for
integrating accurate, multiaxis, inertial sensing into industrial
systems, especially when compared with the complexity and
investment associated with discrete designs. All necessary motion
testing and calibration are part of the production process at the
factory, greatly reducing system integration time. Tight orthogonal
alignment simplifies inertial frame alignment in navigation systems.
An improved SPI interface and register structure provide faster
data collection and configuration control.
This compact module is approximately 22 mm × 33 mm × 11 mm
and provides a compact connector interface.
APPLICATIONS
Medical instrumentation
Robotics
Platform controls
Navigation
FUNCTIONAL BLOCK DIAGRAM
DIOx
RST
VCC
SELF-TEST
I/O
ALARMS
POWER
MANAGEMENT
GND
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TRIAXIAL
ACCEL
TRIAXIAL
GYRO
TEMP
CONTROLLER
CONTROL
REGISTERS
DIGITAL
FILTER
CALIBRATION
CORRECTION
OUTPUT
REGISTERS
SPI
PORT
CS
SCLK
DIN
DOUT
Figure 1.
ADIS16334
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
©2011 Analog Devices, Inc. All rights reserved.






ADIS16334 Datasheet, Funktion
ADIS16334
ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter
Acceleration
Any Axis, Unpowered
Any Axis, Powered
VCC to GND
Digital Input Voltage to GND
Digital Output Voltage to GND
Analog Input to GND
Operating Temperature Range
Storage Temperature Range
Rating
2000 g
2000 g
−0.3 V to +6.0 V
−0.3 V to +5.3 V
−0.3 V to VCC + 0.3 V
−0.3 V to +3.6 V
−40°C to +105°C
−65°C to +125°C1, 2
1 Extended exposure to temperatures outside the specified temperature
range of −40°C to +105°C can adversely affect the accuracy of the factory
calibration. For best accuracy, store the parts within the specified operating
range of −40°C to +105°C.
2 Although the device is capable of withstanding short-term exposure to
150°C, long-term exposure threatens internal mechanical integrity.
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.
Table 4. Package Characteristics
Package Type
θJA
θJC
20-Lead Module
(ML-20-1)
36.5°C
16.9°C
Device Weight
12.5 grams
ESD CAUTION
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Rev. 0 | Page 6 of 20

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ADIS16334 pdf, datenblatt
ADIS16334
OUTPUT DATA REGISTERS
Table 9 provides a summary of the output registers. The most
significant bit in each output register provides a new data
indicator function. Every time a new data sample loads into the
output data registers, the ND bit is a 1, until a read operation
accesses the data sample. Then, this bit sets to 0, until the next
data sample loads in. The second most significant bit provides
an error/alarm indicator. This bit is equal to 1 if any error flag in
the DIAG_STAT register is equal to 1 (active).
Table 9. Output Data Register Summary
Register
Address1 Function
XGYRO_OUT 0x04
Gyroscope output, x-axis
YGYRO_OUT 0x06
Gyroscope output, y-axis
ZGYRO_OUT 0x08
Gyroscope output, z-axis
XACCL_OUT 0x0A
Accelerometer output, x-axis
YACCL_OUT 0x0C
Accelerometer output, y-axis
ZACCL_OUT 0x0E
Accelerometer output, z-axis
TEMP_OUT 0x10
Gyroscope temperature, x-axis
1 Lower byte address shown.
Gyroscopes
The output registers for the gyroscopes (angular rate of rotation)
are XGYRO_OUT, YGYRO_OUT, and ZGRYO_OUT. Table 10
provides the bit assignments for these registers, along with the
digital formatting for converting the digital codes into angular
rate values. Table 11 provides several examples for converting the
14-bit, twos complement data into angular rate measurements,
and Figure 15 provides the physical/directional reference for
these sensors.
Table 10. Gyroscope Register Bit Assignments
Bit(s) Description
[15] New data, 1 = new data since last read access
[14] Error/alarm
[13:0]
Angular rate output data. Twos complement digital
format, typical sensitivity = 0.05°/sec per LSB
Z-AXIS
aZ
gZ
Table 11. Gyroscope Data Format Examples
Rate1
Decimal Hex
Binary
+300°/sec
+6000 LSB 0x1770 XX01 0111 0111 0000
+0.1°/sec
+2 LSB
0x0002 XX00 0000 0000 0010
+0.05°/sec
+1 LSB
0x0001 XX00 0000 0000 0001
0°/sec
0 LSB
0x0000 XX00 0000 0000 0000
−0.05°/sec
−1 LSB
0x3FFF XX11 1111 1111 1111
−0.1°/sec
−2 LSB
0x3FFE XX11 1111 1111 1110
−300°/sec
−6000 LSB 0x2890 XX10 1000 1001 0000
1 The numbers in the rate column reflect the default range setting, ±300°/sec.
Accelerometers
The output registers for the accelerometers are XACCL_OUT,
YACCL_OUT, and ZACCL_OUT. Table 12 provides the bit
assignments for these registers, along with the digital formatting
for converting the digital codes into angular rate values. Table 13
provides several examples for converting the 14-bit, twos
complement data into acceleration measurements, and Figure 15
provides the physical/directional reference for these sensors.
Table 12. Accelerometer Register Bit Assignments
Bit(s) Description
[15] New data, 1 = new data since last read access
[14] Error/alarm
[13:0]
Linear acceleration output data. Twos complement
digital format, typical sensitivity = 1 mg/LSB
Table 13. Acceleration, Twos Complement Format
Acceleration Decimal Hex
Binary
+5 g +5000 LSB 0x1388 XX01 0011 1000 1000
+2 mg
+2 LSB
0x0002 XX00 0000 0000 0010
+1 mg
+1 LSB
0x0001 XX00 0000 0000 0001
0g
0 LSB
0x0000 XX00 0000 0000 0000
−1 mg
−1 LSB
0x3FFF XX11 1111 1111 1111
−2 mg
−2 LSB
0x3FFE XX11 1111 1111 1110
−5 g −5000 LSB 0x2C78 XX10 1100 0111 1000
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Y-AXIS
aY
gY
X-AXIS
aX
gX
PIN 20
PIN 2
NOTES
1. ACCELERATION (aX, aY, aZ) AND ROTATIONAL (gX, gY, gZ) ARROWS
INDICATE THE DIRECTION OF MOTION THAT PRODUCES A POSITIVE
OUTPUT.
Figure 15. Sensor Axes and Orientation Reference Diagram
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