10-bit magnetic rotary encoder features wake-up, power-down

10-bit magnetic rotary encoder features wake-up, power-down

Featuring automatic power-down and wake-up modes, the AS5050 10-bit magnetic rotary encoder IC is suited for low-power applications such as robotics, as well as for servo motor control and as an input device for low-cost battery-operated devices. Depending on the readout rate, the current consumption is reduced to µA levels. For example, 50 µA at 10 measurements per second is typical current drain — claimed the lowest in the industry.

The single-chip encoder integrates four Hall sensor elements, a 10-bit angle encoder, a smart power management controller, and an easy-to-use three- or four-wire SPI communications interface. Housed in a small 4 x 4-mm QFN-16 package, it operates from a 3.3-V power supply over an ambient operating temperature range of –40° to 85°C. It only requires a few passive components and a magnet rotating above the chip. All angle calculations are performed on chip. ($2.84 ea/1,000 — samples available now.)

By Christina Nickolas

austriamicrosystems , Unetrremstaetten , Austria
U.S. Sales Office 408-345-1790

www.austriamicrosystems.com