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'Smallest' linear Hall sensor IC boasts I²C interface

Posted: 14 Oct 2010 ?? ?Print Version ?Bookmark and Share

Keywords:resolution? serial interface?

The AS5510, a linear Hall sensor IC that is said to be the industry's smallest with a 10-bit digital output resolution, is now available from austriamicrosystems AG.

Designed for consumer applications, such as cell phone cameras, the AS5510 is available in a 1.46mm x 1.1mm, 6-pin WLCSP chip scale package. It features an I�C 2-wire serial interface for switching between four different sensitivity ranges and for simple transmission of data to a microcontroller.

 austriamicrosystems AS5510 linear Hall sensor IC

The magnetic linear encoder offers contactless linear position sensing in closed-loop position control systems with limited space as such zoom or autofocus camera systems, measuring the absolute position of a simple 2-pole magnet for a typical lateral stroke of 0.5mm-2mm with air gaps of 1mm. Even higher lateral strokes and air gaps are possible using stronger magnets.

A power-down mode with a current consumption of 25?A allows the AS5510 to reduce power consumption while the I�C interface offers a speedy connection to the microcontroller without the need for additional analog to digital conversion.

The AS5510 can operate in temperatures from -30C to +85C and runs on 2.5V to 3.6V supply voltage.

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