iC-MHM is a compact, contactless high-resolution magnetic angle sensor for the on-axis scanning of a diametric magnet. Its Hall sensor array provides sine/cosine signals output by differential drivers with 1 Vpp, which are resolved by a fast vectortracking interpolation circuit. A signal fine-calibration can compensate placement errors and thus higher precision. The chip features multiturn counting, preset on power up and verified cyclically if an external multiturn sensor is connected. GPIO pins permit system control, can be used for pin-triggered position preset, or output of incremental and test signals. The device’s setup with CRC is acquired from an external EEPROM; sharing with other devices is possible due to the I2C multimaster interface. The embedded RS422 transceiver allows direct BiSS/SSI line connections. All interface pins are reversepolarity and short-circuit-proof.

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