ADIS16485_15 Datasheet, PDF (1/32 Pages) Analog Devices – Tactical Grade, Six Degrees of Freedom Inertial Sensor

Data Sheet
Tactical Grade,
Six Degrees of Freedom Inertial Sensor
ADIS16485
FEATURES
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, ±5 g
Triaxial, delta angle, and delta velocity outputs
Fast start-up time, ~500 ms
Factory calibrated sensitivity, bias, and axial alignment
Calibration temperature range: −40°C to +85°C
SPI-compatible serial interface
Embedded temperature sensor
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
Single command self test
Single-supply operation: 3.0 V to 3.6 V
2000 g shock survivability
Operating temperature range: −40°C to +105°C
GENERAL DESCRIPTION
The ADIS16485 iSensor® device is a complete inertial system that
includes a triaxial gyroscope and a triaxial accelerometer. Each
inertial sensor in the ADIS16485 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 ADIS16485 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.
The ADIS16485 uses the same footprint and connector system
as the ADIS16375, ADIS16488, and ADIS16488A, which greatly
simplifies the upgrade process. It comes in a module that is
approximately 47 mm × 44 mm × 14 mm and has a standard
connector interface.
APPLICATIONS
Platform stabilization and control
Navigation
Personnel tracking
Instruments
Robotics
FUNCTIONAL BLOCK DIAGRAM
DIO1 DIO2 DIO3 DIO4 RST
VDD
SELF TEST
I/O
ALARMS
POWER
MANAGEMENT
GND
TRIAXIAL
GYRO
TRIAXIAL
ACCEL
TEMP
VDD
CONTROLLER
CALIBRATION
AND
FILTERS
CLOCK
VDDRTC
Figure 1.
OUTPUT
DATA
REGISTERS
SPI
USER
CONTROL
REGISTERS
ADIS16485
CS
SCLK
DIN
DOUT
Rev. E
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