Details, datasheet, quote on part number: EVAL-ADXL372Z
PartEVAL-ADXL372Z
Category
TitleEVAL BOARD FOR ADXL372
Description
CompanyAnalog Devices
DatasheetDownload EVAL-ADXL372Z datasheet
  
EVAL-ADXL372Z photo

Others parts numbering
ADXL372BCCZ-RL7: MICROPOWER THREE-AXIS 200 DIG AC

 

Features, Applications
FEATURES

200 g measurement range 3200 Hz user selectable bandwidth with 4-pole antialiasing filter Selectable oversampling ratio Adjustable high-pass filter Ultralow power Power can be derived from a coin cell battery 3200 Hz ODR, 2.5 V supply Low power, wake-up mode for low g activity detection 1.4 A instant on mode with adjustable threshold <0.1 A standby mode Built in features for system level power savings Autonomous interrupt processing without processor intervention Deep embedded FIFO to minimize host processor load Ultralow power event monitoring detects impacts and wakes up fast enough to capture the transient events Ability to capture and store peak acceleration values of events Adjustable, low g threshold activity and inactivity detection Wide supply range: 3.5 V Acceleration sample synchronization via external trigger SPI digital interface and limited I2C interface format support 12-bit output at 100 mg/LSB scale factor Wide temperature range: to +105C Small, thin, 1.06 mm package

The is an ultralow power, 200 g MEMS accelerometer that consumes 3200 Hz output data rate (ODR). The ADXL372 does not power cycle its front end to achieve its low power operation and therefore does not run the risk of aliasing the output of the sensor. In addition to its ultralow power consumption, the ADXL372 has many features to enable impact detection while providing system level power reduction. The device includes a deep multimode output first in, first out (FIFO), several activity detection modes, and a method for capturing only the peak acceleration of over threshold events. Two additional lower power modes with interrupt driven, wake-up features are available for monitoring motion during periods of inactivity. In wake-up mode, acceleration data can be averaged to obtain a low enough output noise to trigger on low g thresholds. In instant on mode, the ADXL372 consumes 1.4 A while continuously monitoring the environment for impacts. When an impact event that exceeds the internally set threshold is detected, the device switches to normal operating mode fast enough to record the event. High g applications tend to experience acceleration content over a wide range of frequencies. The ADXL372 includes a 4-pole lowpass antialiasing filter to attenuate out of band signals that are common in high g applications. The ADXL372 also incorporates a high-pass filter to eliminate initial and slow changing errors, such as ambient temperature drift. The ADXL372 provides 12-bit output data at 100 mg/LSB scale factor. The user can access configuration and data registers via the serial peripheral interface (SPI) or limited I2C protocol. The ADXL372 operates over a wide supply voltage range and is available 1.06 mm package. Multifunction pin names may be referenced by their relevant function only.

APPLICATIONS

Impact and shock detection Asset health assessment Portable Internet of Things (IoT) edge nodes Concussion and head trauma detection

INT2 12-BIT ADC DIGITAL LOGIC, FIFO, AND SPI MOSI MISO CS SCLK

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ADXL372 Material Declaration PCN-PDN Information Quality And Reliability Symbols and Footprints

Ultralow Power, 200 g Digital Accelerometer Breakout Board

Data Sheet ADXL372: Micropower, 200 g Digital Output, MEMS Data Sheet User Guides UG-1113: Ultralow Power, 200 g Digital Accelerometer Breakout Board

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Features.............................................................................................. 1 Applications....................................................................................... 1 General Description......................................................................... 1 Functional Block Diagram.............................................................. 1 Revision History............................................................................... 3 Specifications..................................................................................... 4 Absolute Maximum Ratings............................................................ 6 Thermal Resistance...................................................................... 6 Recommended Soldering Profile............................................... 6 ESD Caution.................................................................................. 6 Pin Configuration and Function Descriptions............................. 7 Typical Performance Characteristics............................................. 8 Theory of Operation...................................................................... 13 Mechanical Device Operation.................................................. 13 Operating Modes........................................................................ 13 Bandwidth................................................................................... 13 Power/Noise Trade-Off.............................................................. 14 Power Savings.............................................................................. 15 Autonomous Event Detection....................................................... 16 Activity and Inactivity................................................................ 16 Motion Warning......................................................................... 18 Impact Detection Features............................................................ 19 Wide Bandwidth......................................................................... 19 Instant On Impact Detection.................................................... 19 Capturing Impact Events........................................................... 19 FIFO................................................................................................. 20 Benefits of the FIFO................................................................... 20 Using the FIFO........................................................................... 20 Retrieving Data from FIFO....................................................... 21 Interrupts......................................................................................... 22 Interrupt Pins.............................................................................. 22 Types of Interrupts..................................................................... 22 Additional Features........................................................................ 24 Using an External Clock............................................................ 24 Synchronized Data Sampling.................................................... 24 Self Test........................................................................................ 24 User Register Protection............................................................ 25 User Offset Trims....................................................................... 25 Serial Communications................................................................. 26 Serial Interface............................................................................ 26

Multibyte Transfers.................................................................... 26 Invalid Addresses and Address Folding.................................. 27 Register Map................................................................................... 30 Register Details............................................................................... 32 Analog Devices ID Register...................................................... 32 Analog Devices MEMS ID Register......................................... 32 Device ID Register..................................................................... 32 Product Revision ID Register................................................... 32 Status Register............................................................................. 33 Activity Status Register.............................................................. 33 FIFO Entries Register, MSB...................................................... 34 FIFO Entries Register, LSB........................................................ 34 X-Axis Data Register, MSB....................................................... 34 X-Axis Data Register, LSB......................................................... 34 Y-Axis Data Register, MSB........................................................ 35 Y-Axis Data Register, LSB......................................................... 35 Z-Axis Data Register, MSB....................................................... 35 Z-Axis Data Register, LSB......................................................... 35 Highest Peak Data Registers..................................................... 36 X-Axis Highest Peak Data Register, MSB............................... 36 X-Axis Highest Peak Data Register, LSB................................. 36 Y-Axis Highest Peak Data Register, MSB................................ 36 Y-Axis Highest Peak Data Register, LSB................................. 37 Z-Axis Highest Peak Data Register, MSB............................... 37 Z-Axis Highest Peak Data Register, LSB................................. 37 Offset Trim Registers................................................................. 38 X-Axis Offset Trim Register, LSB............................................. 38 Y-Axis Offset Trim Register, LSB............................................. 38 Z-Axis Offset Trim Register, LSB............................................. 38 X-Axis Activity Threshold Register, MSB............................... 39 X-Axis of Activity Threshold Register, LSB............................ 39 Y-Axis Activity Threshold Register, MSB............................... 39 Y-Axis of Activity Threshold Register, LSB............................ 40 Z-Axis Activity Threshold Register, MSB............................... 40 Z-Axis of Activity Threshold Register, LSB............................ 40 Activity Time Register............................................................... 41 X-Axis Inactivity Threshold Register, MSB............................ 41 X-Axis of Inactivity Threshold Register, LSB......................... 42 Y-Axis Inactivity Threshold Register, MSB............................ 42 Y-Axis of Inactivity Threshold Register, LSB......................... 43


 

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