LSM303AH

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

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Product overview

Description

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.

  • All 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 / I2C 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

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STMicroelectronics - LSM303AH

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Quality and Reliability

Part Number Marketing Status Package RoHS Compliance Grade Material Declaration**
LSM303AHTR
Active
LGA 2X2X1 12LD PITCH 0.5MM Ecopack2

LSM303AHTR

Package:

LGA 2X2X1 12LD PITCH 0.5MM

Material Declaration**:

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Marketing Status

Active

Package

LGA 2X2X1 12LD PITCH 0.5MM

RoHS Compliance Grade

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.

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