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Sensors/MEMS??

16bit magnetic sensor enables complex 3D sensor systems

Posted: 15 Apr 2015 ?? ?Print Version ?Bookmark and Share

Keywords:Magnetic sensor? programmable sensor? Melexis?

Melexis rolled out its 16bit MLX90393 programmable magnetic sensor with an evaluation board (EVB). The platform enables testing a variety of human machine interfaces and delivers a high digital output.

Applications go all the way from relatively simple slide, push/pull and linear swipe switches right through to more complex 3D sensing systems, such as joysticks or rotary knobs with push functions included.

Relying on Melexis' proprietary Triaxis technology, the 16bit resolution MLX90393 sensor IC on each EVB has the capacity to deliver a digital output proportional to the detected magnetic flux density along three perpendicular axes (X, Y and Z). In addition, there is also provision for thermal measurement.

Magnetic sensor

The IC acts like a building block for position sensing systems in a broad spectrum of applications. It presents engineers with a wide array of configurable parameters, allowing them to optimise their system for either high speed measurement, elevated signal integrity or low power consumption.

Both SPI and I2C interfaces are featured on the EVB, making it easy to integrate with an external microcontroller. There is also a pad incorporated onto the board for the connection of a decoupling capacitor if required, as well as pads for optional pull-up and pull-down resistors for I2C addressing and bus line supply. An operational temperature range spanning from -20C to 85C is supported.

The EVB is supplied with a MLX90393 IC soldered directly to the PCB, along with three extra ICs to accompany it. A QR code link printed on the underside of the board permits immediate access to all the relevant documentation available on the Melexis website.

- Julien Happich
??EE Times Europe





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