Data Sheet
FEATURES
Six Degrees of Freedom Inertial Sensor
Avionics Certification Support
ADIS16487
GENERAL DESCRIPTION
The ADIS16487 is a complete inertial system that includes a
triaxis gyroscope and a triaxis accelerometer. Each inertial sensor
in the ADIS16487 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 (gyroscope bias). As a
result, each sensor has its own dynamic compensation formulas that
provide accurate sensor measurements.
The ADIS16487 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. The SPI and register structure provide a
simple interface for data collection and configuration control.
For interests requiring evidence of avionics or safety critical
applicability, this device supports certification to DO-178C/
DO-254 DAL B within systems, which have completed either
U.S. Federal Aviation Administration (FAA) or European
Aviation Safety Agency (EASA) audits, and can under specific
commercial arrangements be supported by preassessment and
audit acceptance artifacts.
The ADIS16487 uses the same footprint and connector system as
the
ADIS16375, ADIS16480, ADIS16485,
and
ADIS16488A,
which
greatly simplifies the upgrade process. The ADIS16487 is packaged
in a module that is approximately 47 mm × 44 mm × 14 mm
and includes a standard connector interface.
VDD
ALARMS
POWER
MANAGEMENT
GND
DO-178C/DO-254 Design Assurance Level (DAL) B
certification intent
ED-12C certification intent
Triaxial, digital gyroscope, ±450°/sec dynamic range
±0.018° axis-to-axis misalignment error
6°/Hr in-run bias stability
0.3°/√Hr angular random walk
0.045°/sec nonlinearity
Triaxial, digital accelerometer, ±5
g
dynamic range
Triaxial, delta angle and delta velocity outputs
Factory calibrated sensitivity, bias, and axial alignment
Calibration temperature range: −40°C to +85°C
Serial peripheral interface (SPI) compatible
Programmable operation and control
Automatic and manual bias correction controls
4 FIR filter banks, 120 configurable taps
Digital I/O: data ready alarm indicator, external clock
Alarms for condition monitoring
Power-down/sleep mode for power management
Optional external sample clock input: up to 2.4 kHz
Continuous self test of inertial sensors
On demand self test of inertial sensors
Continuous CRC-based memory testing
Single-supply operation: 3.0 V to 3.6 V
2000
g
mechanical shock survivability
Operating temperature range: −40°C to +105°C
APPLICATIONS
Attitude and heading reference systems
Platform stabilization and control
Unmanned vehicle navigation
Robotics and instrumentation
FUNCTIONAL BLOCK DIAGRAM
DIO1 DIO2 DIO3 DIO4 RST
SELF TEST
I/O
TRIAXIAL
GYROSCOPE
TRIAXIAL
ACCELEROMETER
TEMPERATURE
VDD
CLOCK
CONTROLLER
CALIBRATION
AND
FILTERS
OUTPUT
DATA
REGISTERS
SPI
USER
CONTROL
REGISTERS
CS
SCLK
DIN
DOUT
VDDRTC
Figure 1.
For more information about the ADIS16487, contact the Analog Devices, Inc.,
Customer Interaction Center
to connect with a technical
support specialist.
Rev. Sp0
Document Feedback
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
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Technical Support
www.analog.com
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ADIS16487
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