MLX90316LDC-BCG-000-SP

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The MLX90316LDC-BCG-000-SP is an angular contactless position sensor from Sensirion which is specifically designed to measure absolute angular positions from 0 to 359 degrees including all intervening angles. The MLX90316LDC-BCG-000-SP is available in a compact 4mmx4mm QFN package with an integrated SPI interface. The device uses a proven back-side illuminated, non-contact capacitive sensing principle which utilizes an array of electrodes to detect changes in capacitance of a slider with respect to its position.

The primary application field of this sensor includes automotive, medical, precision instrumentation, industrial and consumer electronics, automotive control, safety, and remote-controlled toys. The device can be used in applications that require 360-degree absolute angular position sensing, such as direct-drive steering wheels and power wheels, as well as those that utilize servo-motors for position control.

The MLX90316LDC-BCG-000-SP offers a range of resolution options from 1 degree to 2 degrees, with an absolute repeatability of ± 0.5 degree. Its integrated SPI interface allows for easy interfacing with a wide range of host microcontrollers. In addition, the device features a low power mode, stopping position update temporarily while maintaining all register settings.

The working principle of the MLX90316LDC-BCG-000-SP is based on a combination of two technologies: capacitive sensing and back-side illumination. The device is equipped with an array of electrodes, spaced in a uniform interval along the circumference of the sensor body. Changes in the capacitance of the electrodes, caused by a rotating object, are used to determine the angular position. The back-side illumination allows for the device to take measurements in a wide range of lighting conditions, with a reduced noise level.

In addition, the MLX90316LDC-BCG-000-SP utilizes an algorithm based on principal component analysis in order to reduce linearity errors and provide high accuracy and stability. The device is also equipped with additional features such as temperature compensation, allowing it to provide accurate measurements even when operating in extreme environmental conditions. Finally, the device has an external pull-up resistor connected to each output pin in order to provide protection against external noise.

The MLX90316LDC-BCG-000-SP is a highly functional and reliable angular position sensor which can be used in a wide range of applications. Its capacitive sensing technology and back-side illumination allow it to take measurements accurately and with minimal noise interference. In addition, its advanced temperature compensation algorithm ensures high accuracy and stability. The device’s small size and integrated SPI interface makes it the ideal choice for applications that require precise angular position sensing.

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