Magnetic Rotary Encoder IC handles temperatures to 150°C.

Press Release Summary:

Fully qualified to AEC-Q100, 10-bit AS5140H is suited for harsh automotive and industrial applications with high ambient temperatures. Three differently programmable incremental outputs are available, one which delivers 3-phase commutation signal for brushless DC motors With resolution of 0.35°, IC can recognize 1,024 positions within one 360° turn, accessible with serial or PWM interface. Daisy chain mode allows position data to be read serially over 2-wire bus.

Original Press Release:

austriamicrosystems Launches the AS5140H - the First Qualified 10-bit Magnetic Rotary Encoder with Ambient Temperature up to 150°C

New AS5140H magnetic rotary encoder IC is ideal for harsh automotive and industrial applications

Unterpremstaetten, Austria (March 22, 2007) - austriamicrosystems (SWX: AMS), a leading global designer and manufacturer of analog integrated circuits (ICs) for communications, industrial, medical and automotive applications, expands its magnetic rotary encoder family with the AS5140H 10-bit encoder. The innovative rotary encoder IC is fully qualified to AEC-Q100 and designed for applications in an ambient temperature range up to 150°C.

With a resolution of 0.35 degrees, the AS5140H can recognize 1,024 positions within one 360° turn, accessible with either a serial or a PWM (Pulse-Width Modulation) interface. In addition, there are three differently programmable incremental outputs available to the user; one of these delivers a three-phase commutation signal for brushless DC motors.

Several features of the AS5140H, including user-specific zero programming, a diagnostic function for correct positioning of the magnet, or the ability to recognize interruptions to the power supply, are already standard in austriamicrosystems' encoder product family. In addition, a "daisy chain" mode has been added in the AS5140H, so that position data can be read serially over a two wire bus.

"With the first high temperature-qualified high accuracy magnetic rotary encoder, we present another significant innovation to the market. Qualified to function in an ambient temperature of up to 150°C, the AS5140H is ideally suitable for the harsh conditions in automotive applications", said Bernhard Czar, Automotive Marketing Director at austriamicrosystems. "The AS5140H is a premium device within austriamicrosystems' industry-leading rotary encoder family which we will continue to expand with additional products for difficult and rugged environments."

Due to an integrated voltage regulator the AS5140H operates at either 3.3V or 5V. Despite the wide ambient temperature range, no additional temperature compensation and calibration of the device is required. The AS5140H is available in a lead-free SSOP-16 package. Samples are available immediately.

More product specific information can be downloaded from the austriamicrosystems website at

About austriamicrosystems
austriamicrosystems is a leading designer and manufacturer of high performance analog ICs, combining more than 25 years of analog design capabilities and system know-how with its own state-of-the-art manufacturing and test facilities. austriamicrosystems leverages its expertise in low power and high accuracy to provide industry-leading customized and standard analog products. Operating worldwide with more than 1,000 employees, austriamicrosystems focuses on the areas of power management, sensors & sensor interfaces, portable audio and car access in its markets Communications, Industry & Medical and Automotive, complemented by its Full Service Foundry activities. austriamicrosystems is listed on the SWX Swiss Exchange in Zurich (ticker symbol: AMS). For more information, please visit the web site at

Technical Contact
austriamicrosystems AG
Andreas Pfingstl
Marketing Manager Automotvie
Tel: +43 (0) 3136 500 5516
Fax: +43 (0) 3136 500 5420

More from Machinery & Machining Tools

All Topics

COVID-19 Response Suppliers COVID-19 Response:
Can Your Company Help Provide Critical Supplies?

We are using the power of our platform to aid in the mass shortage of critical supplies. If your company can help provide supplies, capabilities, or materials for products such as N-95 Masks and Tyvek SuitsPlease let us know.

COVID-19 Response Suppliers