LSM303AH

e-Compass: 3D digital accelerometer, 3D digital magnetometer

The LSM303AH is an ultra-low-power high-performance system-in-package featuring a 3D digital linear acceleration sensor and a 3D digital magnetic sensor.

The LSM303AH has user-selectable linear acceleration full scales of ±2g/±4g/±8g/±16 g and is capable of measuring accelerations with output data rates from 1 Hz to 6400 Hz. The device has a magnetic field dynamic range of ±50 gauss with output data rates from10 Hz to 100 Hz. The LSM303AH includes an I²C serial bus interface that supports standard, fast mode, fast mode plus, and high-speed (100 kHz, 400 kHz, 1 MHz, and 3.4 MHz) and an SPI serial standard interface.

The LSM303AH has an integrated 256-level first-in, first-out (FIFO) buffer allowing the user to store data in order to limit intervention by the host processor. The FIFO buffer applies only to the accelerometer.

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

The system can be configured to generate an interrupt signal for free-fall, motion detection and magnetic field detection. The magnetic and accelerometer blocks can be enabled or put into power-down mode separately.

The LSM303AH is available in a plastic land grid array package (LGA) and is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.

Key Features

3 magnetic field channels and 3 acceleration channels
±50 gauss magnetic dynamic range
±2/±4/±8/±16 g selectable acceleration full scales
Anti-aliasing filter
16-bit data output
SPI / I² C serial interfaces
Analog supply voltage 1.71 V to 1.98 V
Programmable interrupt generators for free-fall, motion and magnetic field detection
Embedded self-test
Embedded 256-level FIFO
Embedded temperature sensor
Embedded digital functions: step detector, step counter, significant motion and tilt
ECOPACK^® , RoHS and “Green” compliant

リソース

技術文書

製品スペック

	Description	バージョン	サイズ
	DS11000: Ultra-compact high-performance eCompass module: ultra-low-power 3D accelerometer and 3D magnetometer	6.0	1 MB

アプリケーションノート

	Description	バージョン	サイズ
	AN5087: LSM303AH: ultra-compact, high-performance eCompass module	1.0	1 MB

Technical Notes & Articles

	Description	バージョン	サイズ
	TN0018: Surface mounting guidelines for MEMS sensors in an LGA package	6.0	214 KB

Design Notes & Tips

Description	バージョン	サイズ
DT0058: Computing tilt measurement and tilt-compensated e-compass	1.0	220 KB
DT0059: Ellipsoid or sphere fitting for sensor calibration	2.0	409 KB
DT0060: Exploiting the gyroscope to update tilt measure and e-compass	1.0	226 KB

Publications and Collaterals

パンフレット

	Description	バージョン	サイズ
	MEMS and Sensors, Smart solutions for IoT and enhanced user experience		1 MB

ツール & ソフトウェア

ソフトウェア製品

MEMS and Sensors Software

製品型番	製造元	Description
AndroidHAL-IIO	ST	Android sensor HAL for MEMS motion and environmental sensors (Industrial I/O framework)
AndroidHALInput	ST	Android sensor HAL for MEMS motion and environmental sensors (Input framework)
C-Driver-MEMS	ST	Standard C platform-independent drivers for MEMS motion and environmental sensors
LinuxDriverIIO	ST	Linux device drivers for MEMS motion and environmental sensors (Industrial I/O framework)
LinuxDriverInput	ST	Linux device drivers for MEMS motion and environmental sensors (Input framework)

評価ツール

Product Evaluation Tools

製品型番	製造元	Description
STEVAL-MKI173V1	ST	LSM303AH adapter board for standard DIL24 socket

サンプル & 購入

製品型番	パッケージ	Packing Type	Marketing Status	Unit Price (US$) *	数量	ECCN (US)	Country of Origin	More info	Order from ST	Order from Distributors
LSM303AHTR	LGA 2X2X1 12LD PITCH 0.5MM	Tape And Reel	Active : Product is in volume production	1.635	1000	EAR99	-	MORE INFO	サンプル入手買い物かごに追加	DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

品質 & 信頼性

製品型番	Marketing Status	パッケージ	RoHS Compliance Grade	Material Declaration**
LSM303AHTR	アクティブ	LGA 2X2X1 12LD PITCH 0.5MM	Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.