New IDT Inductive Position Sensor with Better Reliability and Flexibility

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Integrated Device Technology (IDT) introduced a new family of high-performance inductive position sensors offering superior reliability, flexibility and serviceability while cutting system costs.

The three ZMID520x sensors are automotive qualified to the AEC-Q100 standard and support implementation in safety-related systems compliant to ISO26262 up to ASIL-B.


By utilizing an inexpensive printed circuit coil and a simple metallic target, the ZMID520x sensors do away with magnets commonly used with position sensors, offering higher reliability and lowering costs. And, IDT’s inductive technology is immune to magnetic stray fields — parasitic magnetic fields that can cause electro-magnetic interference (EMI) and introduce safety risks. No expensive and complex shielding is required.

“The ZMID520x family represents a new, smarter approach to position sensing,” said Mario Montana, vice president and general manager, IDT’s Automotive and Industrial Products Division. “We have eliminated the need for a magnet-as well as the headache of magnetic stray fields-to boost reliability and hold down system costs.”

The adaptable mechanical design enables rotational end-of-shaft, side-shaft, linear and arc motion, from small angles up to full 360 degrees. The scalable coil design is tolerant to mechanical misalignment in any direction, horizontal or vertical. The sensor ICs can withstand ambient temperatures up to +150 degrees C as well as other harsh conditions such as dust or humidity. Further, the coils themselves can be subjected to even more severe conditions, such as temperatures higher than 150 degrees C as well as corrosive liquids or gases. Using only three wires, the sensor ICs can be user programmed and calibrated in the final system assembly without requiring additional wiring or components.

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