AS5134 360 Step Programmable High Speed Magnetic Rotary Encoder
The AS5134 is a contact‑less magnetic rotary encoder that provides 360° angular position encoding with 8.5‑bit resolution (360 positions per revolution). It integrates a Hall‑sensor array, analog front‑end, digital signal processing and programmable zero‑position and sensitivity in a single SOC.
The device supports 1‑wire PWM, 2‑wire (DCLK, DIO) and 3‑wire (DCLK, DIO, CS) serial interfaces, low‑power mode with fast start‑up, and a wide magnetic field input range of 20‑80 mT. It is supplied in a 20‑pin SSOP package and is suited for rotary position sensing, human‑machine interfaces, AC/DC motor control and brushless DC motor commutation.
| Resolution | 8.5 bit (360 positions per revolution) |
|---|---|
| Supply Voltage (VDD5V) | 4.5 V – 5.5 V |
| Operating Temperature Range | -40 °C to +140 °C |
| Maximum Speed | up to 25 000 rpm |
| Magnetic Field Input Range | 20 mT – 80 mT |
| Package | SSOP‑20, Pb‑free |
The device operates from 4.5 V to 5.5 V on the VDD5V pin.
It provides 360 steps per revolution, corresponding to an 8.5‑bit resolution.
The encoder supports 1‑wire PWM, 2‑wire (DCLK, DIO) and 3‑wire (DCLK, DIO, CS) serial interfaces.
The AS5134 can operate from –40 °C up to +140 °C.