How small can you go?

Sept. 2, 2004
A 10-bit magnetic rotary encoder...

The AS5040 10-bit magnetic rotary encoder integrated circuit measures 5.3 x 6.2 mm and can measure rotational speeds to 10,000 rpm with incremental outputs.

A 10-bit magnetic rotary encoder from austriamicrosystems, Raleigh, N.C. (, fits in a package less than 35 mm2. It combines magneticfieldsensing Hall-effect elements with an analog front-end and digital signal processing.

The AS5040 is a noncontact encoder system that uses a small, diametrically magnetized magnet above or below the chip to detect 1,024 positions through 360°. It provides absolute, incremental, and PWM digital output signals simultaneously. Incremental output modes include quadrature A/B, single channel, and U-V-W commutation signals. A user-programmable index/zero position measures rotational speed. An SSI port provides absolute position data. It can be custom configured by programming an on-board, one-time-programmable internal register.

Units measure 5.33 x 6.2 mm in an SSOP-16 package and have an operating temperature range from -40 to 125°C. An internal voltage regulator lets units operate at either 3.3 or 5 V. The small size and wide temperature range make it suitable for harsh environments. Automotive and industrial applications include motion control for brushless motors, robotics, and steering and sensing in vehicles.

Sponsored Recommendations

How BASF turns data into savings

May 7, 2024
BASF continuously monitors the health of 63 substation assets — with Schneider’s Service Bureau and EcoStruxure™ Asset Advisor. ►Learn More: https://www.schn...

Agile design thinking: A key to operation-level digital transformation acceleration

May 7, 2024
Digital transformation, aided by agile design thinking, can reduce obstacles to change. Learn about 3 steps that can guide success.

Can new digital medium voltage circuit breakers help facilities reduce their carbon footprint?

May 7, 2024
Find out how facility managers can easily monitor energy usage to create a sustainable, decarbonized environment using digital MV circuit breakers.

The Digital Thread: End-to-End Data-Driven Manufacturing

May 1, 2024
Creating a Digital Thread by harnessing end-to-end manufacturing data is providing unprecedented opportunities to create efficiencies in the world of manufacturing.

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!