STMicroelectronics – Magnetic sensor provides accurate, low-noise digital measurements

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STMicroelectronics’ LIS2MDL is an ultra low-power three-axis digital magnetic sensor which has a magnetic field dynamic range of ±50 gauss.

The LIS2MDL provides accurate measurements of magnetic field strength in three dimensions. With offset compensation enabled, the magnetic sensor offset is a maximum of ±60mgauss. Noise in high-resolution mode is 3mgaussrms.

The LIS2MDL provides a 16-bit data output over an I2C serial bus interface which supports 100kHz standard, 400kHz Fast mode, 1MHz Fast mode+ and 3.4MHz high-speed operation.

The sensor also has a serial peripheral interface.

The device can be configured to generate an interrupt signal on detection of a magnetic field. It operates over a temperature range of -40°C to 85°C.

The LIS2MDL is backed by a hardware abstraction layer for the Android™ mobile operating platform, and by software drivers for the Linux operating system.

FEATURES

  • Three magnetic field channels
  • Supply-voltage range: 1.71V to 3.6 V
  • Selectable power modes and resolution
  • Single measurement mode
  • Embedded self-test
  • Built-in temperature sensor

APPLICATIONS

  • Tilt-compensated compasses
  • Map rotation
  • Intelligent power saving for handheld devices
  • Gaming and virtual-reality input devices

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The STEVAL-MKI181V1 is an adapter board designed to facilitate the evaluation of MEMS devices in the LIS2MDL product family. The board offers an effective solution for fast system prototyping and device evaluation in the user’s application.

Orderable Part Number: STEVAL-MKI181V1