Datasheet ADIS16485 (Analog Devices)

Tactical Grade, Six Degrees of Freedom Inertial Sensor Data Sheet ADIS16485 FEATURES GENERAL DESCRIPTION Triaxial, digital gyroscope, ±450°/sec dynamic range
The ADIS16485 iSensor® device is a complete inertial system that
±0.05° orthogonal alignment error
includes a triaxial gyroscope and a triaxial accelerometer. Each
6°/hr in-run bias stability
inertial sensor in the ADIS16485 combines industry-leading
0.3°/√hr angular random walk
iMEMS® technology with signal conditioning that optimizes
0.01% nonlinearity
dynamic performance. The factory calibration characterizes
Triaxial, digital accelerometer, ±5 g
each sensor for sensitivity, bias, alignment, and linear acceleration
Triaxial, delta angle, and delta velocity outputs
(gyroscope bias). As a result, each sensor has its own dynamic
Fast start-up time, ~500 ms
compensation formulas that provide accurate sensor measurements.
Factory calibrated sensitivity, bias, and axial alignment
The ADIS16485 provides a simple, cost-effective method for
Calibration temperature range: −40°C to +85°C
integrating accurate, multiaxis inertial sensing into industrial
SPI-compatible serial interface
systems, especially when compared with the complexity and
Embedded temperature sensor
investment associated with discrete designs. All necessary motion
Programmable operation and control
testing and calibration are part of the production process at the
Automatic and manual bias correction controls
factory, greatly reducing system integration time. Tight orthogonal
4 FIR filter banks, 120 configurable taps
alignment simplifies inertial frame alignment in navigation systems.
Digital I/O: data-ready alarm indicator, external clock
The SPI and register structure provide a simple interface for
Alarms for condition monitoring
data collection and configuration control.
Power-down/sleep mode for power management Optional external sample clock input: up to 2.4 kHz
The ADIS16485 uses the same footprint and connector system
Single command self test
as the ADIS16375 and the ADIS16488A, which greatly
Single-supply operation: 3.0 V to 3.6 V
simplifies the upgrade process. It comes in a module that is
2000 g shock survivability
approximately 47 mm × 44 mm × 14 mm and has a standard
Operating temperature range: −40°C to +105°C
connector interface.
APPLICATIONS Platform stabilization and control Navigation Personnel tracking Instruments Robotics FUNCTIONAL BLOCK DIAGRAM DIO1 DIO2 DIO3 DIO4 RST VDD POWER SELF TEST I/O ALARMS GND MANAGEMENT TRIAXIAL OUTPUT CS GYRO DATA REGISTERS TRIAXIAL SCLK CALIBRATION ACCEL CONTROLLER SPI AND FILTERS DIN TEMP USER CONTROL REGISTERS DOUT VDD CLOCK ADIS16485
001
VDDRTC
10666- Figure 1.
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Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications Timing Specifications Timing Diagrams Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Basic Operation Register Structure SPI Communication Device Configuration Dual Memory Structure Reading Sensor Data User Registers Output Data Registers Inertial Sensor Data Format Rotation Rate (Gyroscope) Acceleration Delta Angles Delta Velocity Internal Temperature Status/Alarm Indicators Firmware Revision Product Identification Digital Signal Processing Gyroscopes/Accelerometers Averaging/Decimation Filter FIR Filter Banks Filter Memory Organization Default Filter Performance Calibration Gyroscopes Manual Bias Correction Bias Null Command Manual Sensitivity Correction Linear Acceleration on Effect on Gyroscope Bias Accelerometers Manual Bias Correction Manual Sensitivity Correction Restoring Factory Calibration Point of Percussion Alignment Alarms Static Alarm Use Dynamic Alarm Use Alarm Example System Controls Global Commands Software Reset Automatic Self Test Memory Management Flash Memory Test General-Purpose I/O Data-Ready Indicator Input Sync/Clock Control General-Purpose I/O Control Power Management General-Purpose Registers Real-Time Clock Configuration/Data Applications Information Mounting Tips Evaluation Tools Breakout Board, ADIS16IMU/PCBZ PC-Based Evaluation, EVAL-ADIS2 Power Supply Considerations Outline Dimensions Ordering Guide