Tactical Grade, Six Degrees of Freedom Inertial Sensor Data Sheet ADIS16490 FEATURES GENERAL DESCRIPTION Triaxial, digital gyroscope, 100/sec dynamic range The ADIS16490 is a complete inertial system that includes a 0.05 axis to axis misalignment error triaxis gyroscope and a triaxis accelerometer. Each inertial sensor 0.25 axis to package misalignment error in the ADIS16490 combines industry leading iMEMS technology 1.8/hr in run bias stability with signal conditioning that optimizes dynamic performance. 0.09/hr angular random walk The factory calibration characterizes each sensor for sensitivity, Triaxial, digital accelerometer, 8 g bias, alignment, and linear acceleration (gyroscope bias). As a 3.6 g in run bias stability result, each sensor has its own dynamic compensation formulas that Triaxial, delta angle and delta velocity outputs provide accurate sensor measurements. Factory calibrated sensitivity, bias, and axial alignment The ADIS16490 provides a simple, cost effective method for Calibration temperature range: 40C to +85C integrating accurate, multiaxis inertial sensing into industrial Serial peripheral interface (SPI) compatible 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 4 finite impulse response (FIR) filter banks, the factory, greatly reducing system integration time. Tight 120 configurable taps orthogonal alignment simplifies inertial frame alignment in Digital input/output (I/O): data ready, external clock navigation systems. The SPI and register structure provide a Sample clock options: internal, external, or scaled simple interface for data collection and configuration control. On demand self test of inertial sensors The ADIS16490 uses the same footprint and connector system as Single-supply operation: 3.0 V to 3.6 V the ADIS16375, ADIS16480, ADIS16485, and ADIS16488A, which 2000 g shock survivability greatly simplifies the upgrade process. The ADIS16490 is packaged Operating temperature range: 40C to +105C in a module that is approximately 47 mm 44 mm 14 mm APPLICATIONS and includes a standard connector interface. Precision instrumentation, stabilization Guidance, navigation, control Avionics, unmanned vehicles Precision autonomous machines, robotics FUNCTIONAL BLOCK DIAGRAM DIO1 DIO2 DIO3 DIO4 RST VDD POWER GND SELF TEST I/O MANAGEMENT OUTPUT CS TRIAXIAL DATA GYRO REGISTERS SCLK CALIBRATION TRIAXIAL CONTROLLER SPI AND ACCEL DIN FILTERS USER TEMP CONTROL DOUT REGISTERS CLOCK ADIS16490 Figure 1. Rev. D Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. Tel: 781.329.4700 20162020 Analog Devices, Inc. All rights reserved. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com 15029-001ADIS16490 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Device Configuration ................................................................ 15 Applications ...................................................................................... 1 User Register Memory Map .......................................................... 16 General Description ......................................................................... 1 User Register Defintions ............................................................... 19 Functional Block Diagram .............................................................. 1 Gyroscope Data .......................................................................... 20 Revision History ............................................................................... 2 Acceleration Data ....................................................................... 21 Specifications .................................................................................... 3 Delta Angles ................................................................................ 22 Timing Specifications .................................................................. 5 Delta Velocity ............................................................................. 23 Absolute Maximum Ratings ........................................................... 7 Calibration .................................................................................. 25 Thermal Resistance ...................................................................... 7 FIR Filters .................................................................................... 34 ESD Caution.................................................................................. 7 Applications Information ............................................................. 36 Pin Configuration and Function Descriptions ............................ 8 Mounting Best Practices ........................................................... 36 Typical Performance Characteristics ............................................. 9 Preventing Misinsertion ............................................................ 36 Theory of Operation ...................................................................... 12 Evaluation Tools ......................................................................... 36 Inertial Sensor Signal Chain ..................................................... 12 Power Supply Considerations .................................................. 36 Register Structure ....................................................................... 13 Packaging and Ordering Information ......................................... 37 Serial Peripheral Interface ......................................................... 14 Outline Dimensions ................................................................... 37 Data Ready .................................................................................. 14 Ordering Guide .......................................................................... 37 Reading Sensor Data .................................................................. 15 REVISION HISTORY 9/2020Rev. C to Rev. D Changes to Delta Velocity Section ............................................... 24 Changes to Table 1 ........................................................................... 3 Change to Flash Memory Endurance Counter, FLSHCNT LOW, Changes tSTALL Parameter and Endnote 2, Table 2 ....................... 5 FLSHCNT HIGH Section .............................................................. 28 Changes to Flash Memory Update Section, On Demand Self Changes to Data Ready Indicator Section .................................. 29 Test (ODST) Section, and Data Ready Indicator Section ......... 29 Changes to Continuous Bias Estimation (CBE), NULL CNFG Changes to Scaling the Input Clock (PPS Mode), Section .............................................................................................. 31 SYNC SCALE Section ................................................................... 31 Updated Outline Dimensions ...................................................... 37 Changes to Figure 50 ..................................................................... 35 3/2018Rev. A to Rev. B 5/2019Rev. B to Rev. C Changes to Table 137 ..................................................................... 31 Changes to Table 1 ........................................................................... 3 Changes to Table 6 ........................................................................... 8 4/2017Rev. 0 to Rev. A Changes to Theory of Operation Section, Inertial Sensor Signal Changes to Nonlinearity Parameter, Table 1 ................................ 3 Chain Section, and Gyroscope Data Sampling Section ............ 12 Changes to Gyroscope Factory Calibration Section .................. 12 Changes to Data Ready Section .................................................... 14 Changes to Accelerometer Factory Calibration Section ........... 13 Added Figure 31 and Figure 32 Renumbered Sequentially ..... 14 Updated Outline Dimensions ...................................................... 37 Added Figure 33 ............................................................................. 15 Changes to Table 10 ....................................................................... 16 10/2016Revision 0: Initial Version Rev. D Page 2 of 37