Datasheet ADIS16445 (Analog Devices)

Compact, Precision Six Degrees of Freedom Inertial Sensor Data Sheet ADIS16445 FEATURES GENERAL DESCRIPTION Triaxial digital gyroscope with digital range scaling
The ADIS16445 iSensor® device is a complete inertial system
±62°/sec, ±125°/sec, ±250°/sec settings
that includes a triaxial gyroscope and a triaxial accelerometer.
Axis-to-axis alignment, <0.05°
Each sensor in the ADIS16445 combines industry-leading
Triaxial digital accelerometer, ±5 g minimum
iMEMS® technology with signal conditioning that optimizes
Autonomous operation and data collection
dynamic performance. The factory calibration characterizes
No external configuration commands required
each sensor for sensitivity, bias, and alignment. As a result, each
175 ms start-up time
sensor has its own dynamic compensation formulas that provide
Factory calibrated sensitivity, bias, and axial alignment
accurate sensor measurements.
Calibration temperature range: −40°C to +85°C
The ADIS16445 provides a simple, cost-effective method for
SPI-compatible serial interface
integrating accurate, multiaxis inertial sensing into industrial
Embedded temperature sensor
systems, especially when compared with the complexity and
Programmable operation and control
investment associated with discrete designs. All necessary motion
Automatic and manual bias correction controls
testing and calibration are part of the production process at the
Bartlett window FIR length, number of taps
factory, greatly reducing system integration time. Tight orthogonal
Digital I/O: data ready, alarm indicator, general-purpose
alignment simplifies inertial frame alignment in navigation systems.
Alarms for condition monitoring
The SPI and register structures provide a simple interface for
Enable external sample clock input up to 1.1 kHz
data collection and configuration control.
Single command self-test Single-supply operation: 3.15 V to 3.45 V
The ADIS16445 has a compatible pinout for systems that cur-
2000 g shock survivability
rently use other Analog Devices, Inc., IMU products, such as
Operating temperature range: −40°C to +105°C
the ADIS16334 or the ADIS16485. The ADIS16445 is packaged in a module that is approximately 24.1 mm × 37.7 mm × 10.8 mm
APPLICATIONS
and has a standard connector interface.
Platform stabilization and control Navigation Robotics FUNCTIONAL BLOCK DIAGRAM DIO1 DIO2 DIO3 DIO4 RST VDD POWER SELF TEST I/O ALARMS MANAGEMENT GND TRIAXIAL GYRO OUTPUT CS DATA REGISTERS TRIAXIAL CALIBRATION SCLK CONTROLLER ACCEL AND SPI FILTERS DIN USER CONTROL TEMP REGISTERS DOUT CLOCK VDD
001
ADIS16445
1051- 1 Figure 1.
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Document Outline Features Applications General Description Functional Block Diagram Table of Contents Revision History Specifications Timing Specifications Timing Diagrams Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics User Registers User Interface Reading Sensor Data Burst Read Function SPI Read Test Sequence Device Configuration Dual Memory Structure Output Data Registers Gyroscopes Accelerometers Internal Temperature System Functions Global Commands Product Identification Self-Test Function Status/Error Flags Memory Management Checksum Test Input/Output Configuration Data Ready Indicator General-Purpose Input/Output Example Input/Output Configuration Digital Processing Configuration Gyroscopes/Accelerometers Input Clock Configuration Digital Filtering Dynamic Range Calibration Gyroscopes Gyroscope Bias Error Estimation Gyroscope Bias Correction Factors Single Command Bias Correction Accelerometers Accelerometer Bias Error Estimation Accelerometer Bias Correction Factors Point of Percussion Alignment Flash Updates Restoring Factory Calibration Alarms Static Alarm Use Dynamic Alarm Use Alarm Reporting Alarm Example Applications Information Mounting Tips Power Supply Considerations ADIS16445/PCBZ Installation PC-Based Evaluation Tools Outline Dimensions Ordering Guide