Nov 17 2010
Producer of ultra efficient analog ICs, austriamicrosystems has revealed the latest 3D Hall encoders in the AS540x product portfolio. The latest encoder offers linear and angular yield information with ultra resolution, which in turn provides fresh solutions with ultra efficiency for automotive and industrial applications.
austriamicrosystems and Fraunhofer Institute for Integrated Circuits IIS in Germany, which holds the license for HallinOne technology, have jointly created the AS540x Hall sensor family.
The AS540x employs two pixel-cells in a variable mode, which safeguards the sensor against external stresses such as magnetic stray fields. The IC also comprises EEPROM, which provides ultimate liberty to system architects for linearizing and programming the IC.
The product manager of Magnetic Encoders at austriamicrosystems, Marcel Urban stated that the usage of precisely standardized vertical and lateral Hall sensors has improved the overall efficiency. The calibration range of the absolute linear position is increased to 40 mm by employing two, three-dimensional pixel cells in a variable mode. These features permit the encoder to be used to sense industrial and automotive position in adverse conditions, he added.
An ordinary two-pole magnet is employed to get the exact position data of the magnet as a PWM interface for remote applications or over a SPI interface for the module. The operating temperature range of the AS540x series is from -40°C to +150°C. The operating voltage for industrial applications is 3V and that of automotive applications is 18V.
The AS540x Hall sensor is enclosed in a tiny lead-free TSSOP. austriamicrosystems will introduce the first AS5401 three-dimensional Hall sensor for industrial applications in the first quarter of 2011. The samples of AS540x series for automotive applications will be marketed soon.
Source: www.austriamicrosystems.com