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ADIS16227 Dataheets PDF



Part Number ADIS16227
Manufacturers Analog Devices
Logo Analog Devices
Description Digital Tri-Axial Vibration Sensor
Datasheet ADIS16227 DatasheetADIS16227 Datasheet (PDF)

Data Sheet FEATURES Frequency domain triaxial vibration sensor Digital acceleration data, ± 70 g measurement range Digital range settings: 1 g, 5 g, 20 g, 70 g Sample rate: 100.2 kHz, 4 decimation filter settings FFT, 512 point, real valued, all three axes (x, y, z) Windowing options: rectangular, Hanning, flat top Programmable FFT averaging, up to 256 averages Storage, 16 FFT records on all three axes (x, y, z) Programmable alarms, 6 spectral bands 2-level settings for warning and fault definit.

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Data Sheet FEATURES Frequency domain triaxial vibration sensor Digital acceleration data, ± 70 g measurement range Digital range settings: 1 g, 5 g, 20 g, 70 g Sample rate: 100.2 kHz, 4 decimation filter settings FFT, 512 point, real valued, all three axes (x, y, z) Windowing options: rectangular, Hanning, flat top Programmable FFT averaging, up to 256 averages Storage, 16 FFT records on all three axes (x, y, z) Programmable alarms, 6 spectral bands 2-level settings for warning and fault definition Adjustable response delay to reduce false alarms Trigger modes: SPI command, timer, external trigger Multirecord capture for selected filter settings Manual capture mode for time-domain data collection Internal self-test with status flags Digital temperature and power supply measurements 2 auxiliary digital I/Os SPI-compatible serial interface Serial number and device ID Single-supply operation: 3.15 V to 3.6 V Operating temperature range: −40°C to +125°C 15 mm × 15 mm × 15 mm aluminum package, flex connector Digital Triaxial Vibration Sensor with FFT Analysis and Storage ADIS16227 GENERAL DESCRIPTION The ADIS16227 iSensor® is a complete vibration sensing system that combines wide bandwidth, triaxial acceleration sensing with advanced time domain and frequency domain signal processing. Time domain signal processing includes a programmable decimation filter and selectable windowing function. Frequency domain processing includes a 512 point, real-valued FFT for each axis, along with FFT averaging, which reduces the noise floor variation for finer resolution. The 16-record FFT storage system offers users the ability to track changes over time and to capture FFTs with multiple decimation filter settings. The 22 kHz sensor resonance and 100.2 kSPS sample rate provide a frequency response that is suitable for machine-health applications. The aluminum core provides excellent mechanical coupling to the MEMS acceleration sensors. An internal clock drives the data sampling and signal processing system during all operations, which eliminates the need for an external clock source. The data capture function has three modes that offer several options to meet the needs of many different applications. The SPI and data buffer structure provide convenient access to wide bandwidth sensor data. The ADIS16227 also offers a digital temperature sensor and digital power supply measurements. The ADIS16227 is available in a 15 mm × 15 mm × 15 mm module with a threaded hole for stud mounting with a 10-32 UNF screw. The dual-row, 1 mm, 14-pin, flexible connector enables simple user interface and installation. The ADIS16227 is footprint and pin-for-pin compatible with the ADIS16223. It has an extended operating temperature range of −40°C to +125°C. APPLICATIONS Vibration analysis Condition monitoring Machine health Instrumentation, diagnostics Safety shutoff sensing FUNCTIONAL BLOCK DIAGRAM DIO1 DIO2 RST INPUT/ OUTPUT VDD POWER MANAGEMENT ALARMS GND ADIS16227 TRIAXIAL MEMS SENSOR TEMP SENSOR ADC SUPPLY CS CONTROLLER CONTROL REGISTERS SPI PORT CAPTURE BUFFER FILTER WINDOW FFT RECORD STORAGE OUTPUT REGISTERS SCLK DIN DOUT 09425-001 Figure 1. Rev. B 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 rights of third parties that may result from its use. Specifications subject to change without notice. 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2010–2012 Analog Devices, Inc. All rights reserved. Free Datasheet http://www.datasheet4u.com/ ADIS16227 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Specifications .................................................................. 4 Absolute Maximum Ratings............................................................ 5 ESD Caution .................................................................................. 5 Pin Configuration and Function Descriptions ............................. 6 Theory of Operation ........................................................................ 7 Sensing Element ......................................


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