Linear Hall Encoder Features Submicron Resolution
The AS5311, from austriamicrosystems, is billed as the first Hall-effect sensor based linear magnetic encoder to offer submicron resolution. For linear motion sensing, a multi-pole magnetic strip is used and for rotary motion sensing the magnetic strip is replaced by a multi-pole magnetic ring. An incremental output with a resolution of 10 bit per pole pair and a travelling speed up to 650 mm/s is available. In conjunction with a 2 mm pole-pair magnetic strip, the sensor provides a 1.95 micrometer resolution signal at its incremental output and a 488 nanometer resolution signal at its serial output. The sensor can be operated with either 3.3V or 5V supply voltage and is specified for an ambient temperature range from -40° to 125°C.
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