ams AS5132 High Speed Magnetic Rotary Encoder IC is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of 360 degrees. It is a system-on-chip, combining integrated Hall elements, analog front-end, and digital signal processing in a single device. To measure the angle, only a simple two-pole magnet, rotating over the center of the chip is required. The absolute angle measurement provides instant indication of the magnet's angular position with a resolution of 8.5-bit = 360 positions per revolution. This digital data is available as serial output over the interface and as a pulse width modulated (PWM) signal. An additional U,V,W output can be used for a block commutation for a brushless DC motor. An incremental signal is available as an option. In addition to the angle information, the strength of the magnetic field is also available as a 5-bit code. A software programmable (OTP) zero position simplifies assembly as the zero position, and the magnet does not need to be mechanically aligned.
