The angular encoder iC-MHM is a position sensor with four integrated Hall sensors for scanning a diametral permanent magnet. The Hall sensors provide differential sine and cosine signals representing the rotation position of the magent. These signals can be calibrated with respect to amplitude ratio and offset. Before output, the signal can be amplified by a programmable factor or regulated to a constant amplitude of 1 Vpp. The integrated sine/digital converter determines the angle position of the permanent magnet at 4,096 angular increments per rotation. Data from an external multiturn sensor can also be read in and synchronized.
External access is through the BiSS C interface with integrated line drivers, also in SSI mode. The configuration parameters are secured with a CRC and stored in an external EEPROM. These parameters are read in through the I2C multimaster interface after the device has been switched on.