AS5048A — 14-bit absolute rotary position sensor (encoder) Key benefits Reliable absolute angle measurement over 360°: provides the exact angular position at power-up, eliminating the need for homing routines. High resolution and smooth control: 14-bit magnetic angle resolution (16384 distinct positions per revolution) for precise position feedback and fine motion control. Contactless, wear-free sensing: magnetic sensing technology measures rotation without mechanical contact, reducing wear and increasing lifetime. Dual outputs for flexible integration: PWM for simple legacy interfaces and SPI for high-resolution digital readout and configuration. Easy mechanical integration: works with a single dipole magnet placed over or under the sensor IC; zero position can be programmed via simple SPI commands. What it does and how it stands out Absolute angle sensing: returns the absolute magnetic angle for the full 360° rotation as a 14-bit digital value on SPI and as a PWM signal. Programmable zero position: align the application mechanically and set the reference (zero) in the device using straightforward SPI commands, simplifying calibration and assembly. Compact magnetic IC solution: designed for shaft-based applications where a rotating magnet acts as the actuator; no physical coupling to the shaft is required. Important attributes Model: AS5048A Resolution: 14-bit absolute angle (16384 steps per 360°) Measurement range: full 360° rotation Technology: contactless magnetic angle sensor (sensor IC + dipole magnet) Outputs: PWM (pulse-width modulation) and SPI digital interface Configuration: zero position programmable via SPI Integration: suitable for shaft applications with simple dipole magnet placement above or below the sensor IC Typical applications Motor control and commutation: precise rotor position feedback for brushless motors and closed-loop control where absolute position and high resolution improve efficiency and smoothness. Robotics and automation: joint and axis angle sensing where repeatable absolute position, high resolution, and contactless operation reduce maintenance and simplify startup. Human-machine interfaces and rotary controls: high-resolution rotary knobs, steering sensors, or throttles where smooth, accurate, and durable position measurement is required. Integration notes Use a simple dipole magnet positioned above or below the sensor IC to generate the magnetic field; adjust magnet placement for best signal. Read absolute angle values over SPI for full 14-bit precision or use PWM for a simple analog-style interface. Set the device zero position with SPI after mechanical assembly to align the sensor reference with the application. The AS5048A provides precise, absolute, and contactless rotary position measurement with flexible outputs and simple magnet-based integration, making it suitable for applications that require reliable, high-resolution angle feedback without mechanical wear.