ADXL372
Info : RECOMMENDED FOR NEW DESIGNS
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ADXL372

Micropower, 3-Axis,  ±200 g Digital Output, MEMS

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $8.13
Features
  • ±200g measurement range
  • 200 Hz to 3200 Hz user-selectable bandwidth with 4-pole anti-aliasing filter
  • Selectable over-sampling ratio 
  • Adjustable high-pass filter 
  • Ultralow power
    • Power can be derived from a coin cell battery
    • 22 µA @ 3200 Hz ODR, 2.5 V supply
    • Low power, wake-up mode for low g activity detection
    • 1.4 μA instant on mode with adjustable threshold
    • <0.1 μA 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/inactivity detection
  • Wide supply range: 1.6 V to 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: −40°C to 105°C
  • Small, thin, 3 mm × 3.25 mm × 1.06 mm package
Additional Details
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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.

APPLICATIONS

  • Impact and shock detection
  • Asset health assessment
  • Portable Internet of Things (IoT) edge nodes
  • Concussion and head trauma detection
Part Models 2
1ku List Price Starting From $8.13

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADXL372BCCZ-RL
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ADXL372BCCZ-RL7
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Product Lifecycle

PCN

Jul 20, 2018

- 18_0051

ADXL372 ASIC Die and Data Sheet Revision

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Part Models

Product Lifecycle

PCN

Jul 20, 2018

- 18_0051

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ADXL372 ASIC Die and Data Sheet Revision

Evaluation Kit

Evaluation Kits 3

reference details image

EVAL-ADXL372Z

Ultralow Power, ±200 g Digital Accelerometer Breakout Board

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EVAL-ADXL372Z

Ultralow Power, ±200 g Digital Accelerometer Breakout Board

Ultralow Power, ±200 g Digital Accelerometer Breakout Board

Features and Benefits

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

Product Detail

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. The EVAL-ADXL372Z is ideal for evaluation of the ADXL372 in an existing system because the stiffness and the small size of the evaluation board minimize the effect of the board on both the system and acceleration measurements.


Full specifications for the ADXL372 are available in the product data sheet; consult the data sheet in conjunction with user guide  UG-1113 when working with the evaluation board.

reference details image

EVAL-ADXL372Z-M

EVAL-ADXL372Z-M Evaluation Board

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EVAL-ADXL372Z-M

EVAL-ADXL372Z-M Evaluation Board

EVAL-ADXL372Z-M Evaluation Board

Features and Benefits

  • 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

Product Detail

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. The system consists of the inertial sensor evaluation board (ISEB), or main board, and a satellite board for any Analog Devices inertial sensor product. The ISEB connects directly to a PC via an USB cable, with the USB connection providing both communications and power to the board. The ISEB is connected to the satellite board through a ribbon cable. This cable allows the satellite to be easily manipulated for testing or separately placed into an environmental chamber for temperature or humidity testing. Separating the boards mitigates corruption of data due to the temperature and humidity effects of other components.


The ISEB is an universal main board and is intended to be used with various satellites of Analog Devices inertial sensors, including analog and digital accelerometers, as well as gyroscopes. The different products are evaluated by means of separate GUIs that are customized for performance and characterization measurements relevant to the inertial sensor being evaluated. There are two kinds of mother board, one named –M and the other named –MLP. The difference between –M and –MLP is just the shunt resistor R13 and the gain resistor R17 which are used to detect the power consumption of the DUT (Device Under Test). EVAL-ADXL372-M used the –M mother board. As ADXL372 is pin-to-pin compatible with ADXL362, the ADXL362 satellite board can be reused for ADXL372.


The EVAL-ADXL372Z-M system contains the ISEB and the EVAL-ADXL372Z-S satellite. Also included is an USB A to Mini-B cable to connect the ISEB to a PC and an 18-inch, 20-pin ribbon cable to connect the ISEB to the satellite.

reference details image

EVAL-ADXL372-ARDZ

Micropower, 3-Axis +/-200g Digital Output MEMS Arduino Shield 

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EVAL-ADXL372-ARDZ

Micropower, 3-Axis +/-200g Digital Output MEMS Arduino Shield 

Micropower, 3-Axis +/-200g Digital Output MEMS Arduino Shield 

Features and Benefits

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

Product Detail

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.

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