iC-MHM QFN28-5x5

14-Bit Absolute Angle Hall Encoder

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Product description

iC-MHM is a position sensor with four Hall sensors for scanning a diametral permanent magnet.

The Hall sensors provide differential sine/cosine signals which can be calibrated with respect to amplitude ratio and offset. The integrated sine-to-digital converter is configurable up to 4 096 angular increments per rotation.

External multiturn sensor data can be read in and synchronized. External access is provided via the BiSS interface with BiSS C or SSI protocol and the integrated line drivers.


  • Quad Hall sensors as array for fault-tolerant assembly
  • Monitored auto-gain control, optional fine-calibration for compensation of misalignment
  • Absolute resolution of 0.02 ° (14 bit / 360 ° at up to 10 000 rpm)
  • Selectable resolution and tracking rate (12 bit at 80 000 rpm)
  • Adjustable zero position and code direction
  • Diff. current-limited sin/cos outputs (1 Vpp to 100 Ω)
  • BiSS Interface for CRC-secured position information and programming
  • Compatible to BiSS C profiles (BP1, BP3) and SSI
  • Integrated RS422 transceiver for up to 10 Mbit/s (at 5 V)
  • Higher data rates supported by LVDS compatibility
  • System monitoring via BiSS error/warning bits (loss-of-magnet)
  • Multiturn data processing for up to 32 bit (SSI MT interface)
  • Command/pin-triggered position preset for ST/MT data
  • 3 GPIO’s for system control, open-drain error output
  • Pin-selectable SPI operation
  • CRC-protected setup from EEPROM (I2C multi-master interf.)
  • Extended temperature range from -40 to +125 °C
  • Reverse-polarity and short-circuit-proof interfacing pins


  • Absolute angle sensors
  • Singleturn/multiturn position encoders
  • Motor feedback
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