DESCRIPTION

· The AS5145 is a contactless magnetic rotary encoder designed for precise angular measurement over a full 360-degree rotation.
· It integrates Hall elements, an analog front end, and digital signal processing in a single system-on-chip.
· Requires only a simple two-pole magnet rotating over the chip's center for angle measurement.
· Offers an absolute angle measurement with a resolution of 0.0879º (4096 positions per revolution).
· Operates at 3.3V or 5V supplies, facilitated by an internal voltage regulator.

FEATURES

· High reliability and durability with contactless high-resolution rotational position encoding.
· Simple programming with user-programmable zero position and settings.
· Multiple interfaces including Serial Communication Interface (SSI), 10-bit PWM output, and Quadrature A/B and Index output signals.
· Capable of handling rotational speeds up to 30,000 rpm.
· Features failure diagnostics for magnet placement monitoring and power supply loss detection.
· Supports daisy chain mode for serial read-out of multiple interconnected AS5145 devices.

APPLICATIONS

· Ideal for motor applications requiring precise angular position feedback.
· Suitable for systems needing high-speed rotational data with robust reliability.
· Applicable in environments where contactless sensing is preferred for durability and maintenance reduction.