Hall Sensor Breaks Size Barrier

Measuring 1.46 x 1.1 mm in a CSP, the AS5510 linear Hall sensor may be the industry’s smallest such device. It delivers a 10-bit digital output resolution and includes an I²C two-wire serial interface for switching between four different sensitivity ranges. The sensor measures the absolute position of a two-pole magnet for a typical lateral stroke of 0.5 to 2 mm with air gaps of 1 mm. With stronger magnets even higher lateral strokes and air gaps are possible. Current consumption in power-down mode is 25 µA and operating temperature ranges from -30°C to +85°C. AUSTRIAMICROSYSTEMS USA INC., Raleigh, NC. (919) 676-5292.