Part Datasheet Search > ST Microelectronics > LIS2DW12 Datasheet PDF > LIS2DW12 Application Note Pages 1/51
LIS2DW12 Application Note - ST Microelectronics
| Manufacturer: | ST Microelectronics |
| Description: | MEMS digital output motion sensor:high-performance ultra-low-power 3-axis "femto" accelerometer |
| Pictures: |
LIS2DW12Datasheet PDF
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September 2017
DocID030703 Rev 1
1/51
www.st.com
AN5038
Application note
LIS2DW12: always-on 3D accelerometer
Introduction
This document is intended to provide usage information and application hints related to ST’s LIS2DW12
motion sensor.
The LIS2DW12 is a 3D digital accelerometer system-in-package with a digital I²C/SPI serial interface
standard output, performing at 90 µA in high-resolution mode and below 1 µA in low-power mode.
Thanks to the ultra-low noise performance of the accelerometer, the device combines always-on low-
power features with superior sensing precision for an optimal motion experience for the consumer.
Furthermore, the accelerometer features smart sleep-to-wakeup (activity) and return-to-sleep (inactivity)
functions that allow advanced power saving.
The device has a dynamic user-selectable full-scale acceleration range of ±2/±4/±8/±16 g and is
capable of measuring accelerations with output data rates from 1.6 Hz to 1600 Hz. The LIS2DW12 can
be configured to generate interrupt signals by using hardware recognition of free-fall events, 6D
orientation, tap and double-tap sensing, activity or inactivity, and wake-up events.
The LIS2DW12 has an integrated 32-level first-in, first-out (FIFO) buffer allowing the user to store data
in order to limit intervention by the host processor.
The LIS2DW12 is available in a small thin plastic land grid array package (LGA) and it is guaranteed to
operate over an extended temperature range from -40 °C to +85 °C.
The ultra-small size and weight of the SMD package make it an ideal choice for handheld portable
applications such as smartphones, IoT connected devices, and wearables or any other application
where reduced package size and weight are required.
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