Austriamicrosystems extends magnetic sensor range

Austriamicrosystems has expanded its magnetic sensor product portfolio to include the AS5304 and AS5306, two high performance linear hall sensor ICs.

The AS5304 and AS5306 feature Austriamicrosystems' new line of magnetic encoders for linear and off-axis motion sensing applications.

The devices require no configuration or calibration by the host controller after power up or during operation.

These linear magnetic encoder ICs can be used in a variety of motion sensing applications found in medical, industrial and consumer products.

'The measurement performance and reliability of motion control systems employing traditional optical encoder sensors can be severely impacted by dirt, dust and grime contaminants.

'Due to the principles of magnetic sensing, the AS5304 and AS5306 encoder ICs are immune to these contaminants,' said Matjaz Novak, marketing director, industry and medical at Austriamicrosystems.

Similar to optical sensors, the AS5304 and AS5306 provide incremental A and B quadrature output signals with 160 steps per magnet pole pair, with an index pulse that is applied once every pole pair.

The index pulse together with the quadrature output signals allow designers to develop applications that track the absolute position, once referenced from a known starting position.

The AS5304 and AS5306 ICs can achieve resolutions of 25um and 15um respectively.

In addition to standard linear positioning applications, the AS5304 and AS5306 also support rotary off-axis applications by using a circular ring magnet mounted on the outside of a rotating shaft.

Rotary off-axis encoding solutions can be used in applications where the magnet cannot be placed directly at the end of a rotating shaft due to mechanical constraints.

The AS5304 and AS5306 devices are available in a 20-lead, 5x5mm, TSSOP device and are specified to operate at 5V over a temperature range of -40C to 125C.

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