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Analog Devices ADXL372 – Micropower, 3-Axis, ±200 g Digital Output, MEMS

Product Overview

The ADXL372 is an ultralow power, 3-axis, ±200 g MEMS accelerometer that consumes 22 μA at a 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 μA 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 low-pass 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 in a 3 mm × 3.25 mm × 1.06 mm package.

Multifunction pin names may be referenced by their relevant function only.

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

Evaluation Kit: EVAL-ADXL372Z

The EVAL-ADXL372Z is a simple evaluation board that allows quick evaluation of the performance of the ADXL372 ultralow power, 3-axis, digital output MEMS accelerometer.

Kit features include:

  • 2 sets of spaced vias for populating 5-pin headers
  • Easily attaches to prototyping board or PCB
  • Small size and board stiffness minimizes impact on the system and acceleration measurements

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Price: 23 €

Evaluation Kit: EVAL-ADXL372Z-M

The iMEMS® ADXL372 inertial sensor evaluation system is an easy-to-use evaluation tool targeting bench or desktop characterization of Analog Devices, Inc., inertial sensor products.

Kit features include:

  • Flexible inertial sensor evaluation platform
    • Single main board operates with interchangeable satellite boards
  • Separates DUT from controller for accurate environmental testing
  • Continuous stream to file data recording
  • Standard USB cable for power and communications
  • PC-based graphical user interface (GUI)
  • Fast, easy installation

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Evaluation Kit: EVAL-ADXL372-ARDZ

The ADXL372 is an ultralow power, 3-axis, ±200 g MEMS accelerometer that consumes 22 μA at a 3200 Hz output data rate (ODR).

Kit features include:

  • Ultra-Low Power Sleep and Wake up Modes
  • ±200g measurement range
  • Adjustable high-pass filter
  • Form Factor Compatible with Arduino

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Order Samples

Model Package Pins Temp Range (°C) RoHS
ADXL372BCCZ-RL 16-Lead LCC (3mm x 3.25mm) 16 -40 to +105 E
ADXL372BCCZ-RL7 16-Lead LCC (3mm x 3.25mm) 16 -40 to +105 E



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