Electronic Design

Hall-Effect Magnetic Encoder Sets Resolution Benchmark

As per its creator, the AEAT-6600-T16 debuts as the industry’s highest-resolution Hall-Effect magnetic encoder (see figure). The component targets industrial applications, particularly those in harsh environments. It provides advanced positioning information in contactless rotary position sensing, robotics, motor feedback, valve control, and a range of medical applications.

One of several features the magnetic encoder offers is a resolution up to 16-bits, ensuring precise angle measurement over a full rotation of 360 degrees. Since it uses magnetic technology for motion control and sensing activities, the encoder delivers non-contact operation that keeps it free from mechanical wear and tear.

Although the encoder is considered somewhat of an electro-mechanical component, Avago refers to the AEAT-6600-T16 as a system-on-chip. It essentially integrates Hall elements, analog front end and digital signal processing in a single device. Along with a high level of integration, the encoder features built-in programmability. This allows users to initiate customized encoder settings.

Another selling point, the AEAT-6600-T16 relies on simple, one-step alignment with no calibration required. It promises accurate performance over a large axial gap and radial displacement, reducing most concerns related to assembly tolerance errors during the manufacturing process. The device also offers a serial output that reduces the number of wires required.

Other features and functions include a simultaneous incremental output up to 1,024 cycles per revolution, an operating temperature range from -40°C to +125°C, a three- or two-wire serial synchronous interface mode for absolute output, Pulse Width Modulation and incremental output modes, an internal voltage regulator for 5V or 3.3V operation, a power-down mode to reduce current consumption, and, no surprise here, the component is RoHS compliant

The AEAT-6600-T16 will be available in a 16-pin TSSOP package, priced at $6.50 each/970. Avago also offers the HEDS-8937 programming kit designed specifically for the AEAT-6600-T16 encoder.

From July 20 to July 22, you can see the AEAT-6600-T16 encoder on display at the MotorTech Japan trade show. Avago’s booth will be in East Hall 1, booth number 1D-103. If you won’t be around for this and you need more info, go to the company’s website at avagotech.com or give them a phone call at (877) 673-9442.

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