AN2847 datasheet(1/31 Pages) STMICROELECTRONICS

Part #	AN2847

Description	This document provides application information for the low-voltage 3-axis digital output

PDF	31 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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September 2010

Doc ID 15136 Rev 2

1/31

AN2847

Application note

LIS331DLH: ±2

g /±4 g /±8 g digital output

high performance ultra low-power 3-axis accelerometer

Introduction

This document provides application information for the low-voltage 3-axis digital output

linear MEMS accelerometer provided in the LGA package.

The LIS331DLH is a high performance ultra low-power 3-axis linear accelerometer, which

belongs to the “nano” family of MEMS accelerometers, with digital I2C/SPI serial interface

standard output.

The device features ultra low-power operational modes that allow advanced power saving

and smart Sleep to Wakeup functions.

The LIS331DLH has dynamically user-selectable full scales of ±2

g /±4 g /±8 g and is

capable of measuring acceleration with output data rates from 0.5 Hz to 1 kHz.

The self-test capability allows the user to check the functioning of the sensor in the final

application.

The device can be configured to generate interrupt signals in response to inertial wake-

up/free-fall events, or based on the position of the device itself.

The thresholds and timing of interrupt generators are programmable by the end user while

fully operational. The LIS331DLH is available in a small, thin plastic land grid array (LGA)

package, and is guaranteed to operate over a wide temperature range of -40 °C to +85 °C.

www.st.com

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