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Sensors Portal
| austriamicrosystems announces AS5165 magnetic angle sensor | ||
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May 11, 2010 - austriamicrosystems announced the AS5165, a contactless magnetic angle position sensor for accurate angular measurement over a full 360°. The high-resolution magnetic rotary sensor offers protection features for reliable operation in harsh environments and includes a SENT J2716 interface for simple transmission of high-resolution sensor information. The AS5165 magnetic encoder is a system-on-chip and combines integrated Hall elements, an analog front-end, digital signal processing, and protection features -- all in a single device. Offering the most reliable performance available, the AS5165 provides protection for the power supply and output pins against overvoltage up to 27 V; power supply pins are also protected against reverse polarity to -18 V. In addition, continuous short circuit detection and broken wire detection are provided, and a unique patented fully differential architecture makes the sensor insensitive to stray magnetic fields. To measure an angle, only a simple two-pole magnet rotating over the center of the chip is required. The magnet may be placed above or below the IC. The AS5165 is tolerant of magnet misalignment, air gap variations, and temperature variations. No calibration is required because of the device’s inherent accuracy. The absolute angle measurement provides instant indication of the magnet’s angular position with a programmable resolution of 0.022° = 16,384 positions per revolution. The AS5165 is AEC-Q100 grade 0 qualified, comes in a TSSOP14 package, and operates from a +5 V supply over a -40 to +150°C temperature range. |
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