Magnetic Encoder IC from Austriamicrosystems
September 24, 2008
The AS5304 and AS5306 from Austriamicrosystems AG, Unterpremstaetten, Austria, are incremental linear magnetic encoder ICs for motion control applications. The devices provide incremental A and B quadrature output signals with 160 steps/magnet pole pair and an index pulse applied once every pole pair. Resolutions are 25 µm and 15 µm, respectively. In addition to standard linear positioning applications where a magnet strip moves laterally over the IC, the encoder ICs also support rotary off-axis applications by using a circular ring magnet. Both devices are specified to operate at 5 V over a –40°C to 125°C range.
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