AMS Introduces the AS5715: High‑Speed Inductive Sensor for Automotive & Industrial Motors

Key Advantages

• Compact size and reduced weight compared to traditional resolver solutions.
• Cost‑effective design that cuts bill‑of‑materials expenses.
• Highly configurable: supports on‑axis (end‑of‑shaft) and off‑axis (through‑shaft or side‑of‑shaft) topologies.
• Compatible with a wide range of multi‑pole‑pair motors, including four‑pole‑pair PMSMs.
• Deliverable accuracy of ±0.3° at speeds up to 100,000 rpm.
• ISO 26262 compliant with ASIL‑C implementation for automotive safety.

Applications

The AS5715 is engineered for high‑speed motor environments found in automotive electrification—power steering, traction drives, and electric/hybrid vehicles—and industrial automation. By providing low‑latency, high‑accuracy rotor position data, it enables motors to maximize torque, reduce torque ripple, and achieve peak efficiency.

Technical Specifications

• Resolution: < ±0.3°
• Maximum speed: 100,000 rpm
• Motor types: four‑pole‑pair PMSMs and other multi‑pole‑pair designs
• Topologies: on‑axis & off‑axis (through‑shaft / side‑of‑shaft)
• Safety: ISO 26262 ASIL‑C compliant

Safety & Compliance

Designed to meet the stringent ISO 26262 functional safety standard, the AS5715’s ASIL‑C qualification ensures reliability for automotive powertrain applications.

Getting Started

AMS provides an evaluation kit, comprehensive documentation, and application guides for designing Tx and Rx coils on the static sensor PCB as well as the rotating target assembly. Dual‑IC redundancy can be achieved by mounting two AS5715s on a single sensor board.