ADIS16480_15 Datasheet, PDF (1/44 Pages) Analog Devices – Ten Degrees of Freedom Inertial Sensor with Dynamic Orientation Outputs

Data Sheet
Ten Degrees of Freedom Inertial Sensor
with Dynamic Orientation Outputs
ADIS16480
FEATURES
GENERAL DESCRIPTION
Dynamic angle outputs
Quaternion, Euler, rotation matrix
0.1° (pitch, roll) and 0.3° (yaw) static accuracy
Triaxial, digital gyroscope, ±450°/sec dynamic range
±0.05° orthogonal alignment error
6°/hr in-run bias stability
0.3°/√hr angular random walk
0.01% nonlinearity
Triaxial, digital accelerometer, ±10 g
Triaxial, delta angle and delta velocity outputs
Triaxial, digital magnetometer, ±2.5 gauss
Digital pressure sensor, 300 mbar to 1100 mbar
Adaptive extended Kalman filter
Automatic covariance computation
Programmable reference reorientation
Programmable sensor disturbance levels
Configurable event-driven controls
Factory-calibrated sensitivity, bias, and axial alignment
Calibration temperature range: −40°C to +85°C
SPI-compatible serial interface
Programmable operation and control
4 FIR filter banks, 120 configurable taps
Digital I/O: data-ready alarm indicator, external clock
Optional external sample clock input: up to 2.4 kHz
Single-command self-test
The ADIS16480 iSensor® device is a complete inertial system
that includes a triaxial gyroscope, a triaxial accelerometer, triaxial
magnetometer, pressure sensor, and an extended Kalman filter
(EKF) for dynamic orientation sensing. Each inertial sensor in
the ADIS16480 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 sensors are
further correlated and processed in the extended Kalman filter,
which provides both automatic adaptive filtering, as well as
user-programmable tuning. Thus, in addition to the IMU
outputs, the device provides stable quaternion, Euler, and
rotation matrix outputs in the local navigation frame.
The ADIS16480 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.
Single-supply operation: 3.0 V to 3.6 V
2000 g shock survivability
The ADIS16480 uses the same footprint and connector system as
the ADIS16488 and the ADIS16488A, which greatly simplifies the
APPLICATIONS
Platform stabilization, control, and pointing
Navigation
Instrumentation
upgrade process. It comes in a module that is approximately
47 mm × 44 mm × 14 mm and has a standard connector
interface. The ADIS16480 provides an operating temperature
range of −40°C to +105°C.
Robotics
FUNCTIONAL BLOCK DIAGRAM
DIO1 DIO2 DIO3 DIO4 RST
VDD
SELF-TEST
I/O
ALARMS
TRIAXIAL
GYRO
TRIAXIAL
ACCEL
TRIAXIAL
MAGN
PRESSURE
TEMP
VDD
CONTROLLER CALIBRATION
CLOCK
POWER
MANAGEMENT
EXTENDED
KALMAN
FILTER
DIGITAL
FILTERING
GND
OUTPUT
DATA
REGISTERS
SPI
USER
CONTROL
REGISTERS
CS
SCLK
DIN
DOUT
ADIS16480
Figure 1.
VDDRTC
Rev. E
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