Position Sensors - Contactless Linear, Rotary, and Angular / Arc

No Contact Position Sensor ICs

IDT's contactless position sensor solutions are magnet-free, significantly reducing materials costs while providing immunity to magnetic stray fields – a mandatory requirement for many applications, particularly in automotive. Instead of magnets, the inductive position sensors interface with low-cost PCB-based coils and simple metallic targets, providing single-chip design flexibility for rotary end-of shaft (on-axis) sensors, rotary side shaft (off-axis) sensors, linear position sensors, and arc position sensors; from small angles up to full 360° absolute angle sensing. The devices are automotive-qualified and ISO 11452-8 compliant, making them suitable for use in a wide range of automotive, industrial and consumer applications.

Benefits of IDT's Contactless Position Sensor Solution

IDT's position sensors provide numerous benefits over traditional Hall effect and xMR sensors. Some of the most important benefits include:

  • No magnets required; reduces system cost
  • Stray field immunity and ISO 11452-8 compliance
  • Wide operating temperature range for harsh environments
  • Ultra-thin position sensors design options (~2mm)
  • Tolerance to mechanical misalignment
  • High accuracy in all applications (angle, linear, and rotary)
  • Single IC for on-axis and off-axis sensor designs
  • AEC-Q100 Grade 0 automotive qualification
  • Full resolution for every angle range

Download: ZMID520x Inductive Position Sensor Family Overview (PDF)
Download: Sensing Technologies and Sensor Solutions Overview (PDF | English, 简体中文)

Featured Position Sensor Products (Linear, Rotary, Angle / Arc)

Part Number Description Datasheet Order
ZMID5201 Inductive position sensor IC with analog output pdf_icon_for_table.png Buy Now arrow_icon_for_table.png
ZMID5202 Inductive position sensor IC with PWM output pdf_icon_for_table.png Buy Now arrow_icon_for_table.png
ZMID5203 Inductive position sensor IC with SENT output pdf_icon_for_table.png Buy Now arrow_icon_for_table.png
ZMID5201STKIT Inductive position sensing starter kit with arc, rotary, and linear pdf_icon_for_table.png Buy Now arrow_icon_for_table.png

Application modules are available to demonstrate rotary, arc (angular), and linear position sensing for the ZMID5201, ZMID5202 and ZMID5203 devices.

About Contactless (Non-contact) Inductive Position Sensor ICs

At their most basic function, a position sensor is any device that provides measurement data based on position of a moving object. Traditional magnet-based solutions measure angular position using variations of magnetic field amplitude induced by the displacement or rotation of a moving magnet. However, these solutions are expensive and have operating temperature limitations. IDT's no-contact, magnet-free inductive position sensor ICs interface with thin PCB-based coils and a metallic target to determine position and provide accurate position data back to the system. These inductive, contactless solutions offer significant advantages in cost, temperature range, reliability, design flexibility, and immunity to magnetic stray fields.