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Rotary encoder ICs offer contactless alternative

Posted: 13 Nov 2006 ?? ?Print Version ?Bookmark and Share

Keywords:austriamicrosystems? AS5030? AS5130? rotary encoder? sensor?

austriamicrosystems expands its rotary encoder family with the AS5030 and AS5130 8bit absolute magnetic rotary encoder ICs with pushbutton and low-power mode features. These devices offer a contactless alternative to mechanical rotary switches in a variety of automotive, industrial and consumer applications.

The AS5030 and AS5130 encoders provide an angle resolution of 1.4 over a full 360 turn (8bit), and are accessible via digital SSI or PWM outputs. Both devices offer pushbutton functionality with user defined magnet-to-device displacement thresholds. Both devices can operate in low-power mode. In addition, the AS5030 offers an ultralow-power sleep mode, which can be set by the user.

Both devices can be configured to provide data via serial interface, PWM or daisy chain. The daisy chain configuration enables users to read the position information of individual devices serially, via a single two-wire bus, said the company. The ICs operate at a 5V supply voltage, and feature a temperature range from -40C to 125C, and rotational speeds up to 30,000rpm. The AS5030 is available in a Pb-free TSSOP16 package while the AS5130 is available in a Pb-free SSOP16 package. The AS5030 is available for sampling and the AS5130 will be available for sampling Q1 2007. The rotary encoders are priced at $3.50 each in quantities of 1,000.

- Gina Roos

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