iC-ML TSSOP20

Hall Position Sensor / Encoder

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Product description

The iC-ML consists of four hall sensors arranged in a line and optimized to read out magnetic tapes with 2.56 mm pole spacing. The integrated signal conditioning unit provides a differential sine/cosine signal at the output.
With the aid of the integrated 8-bit sine/digital converter the travelling distance within a magnetic periode is determined from the sine/cosine signals. This is output via an incremental interface in a number of selectable resolutions.

Features

  • Linear Hall sensor array for magnetic pole pitch of 2.56 mm
  • Non-sensitive to magnetic stray fields due to differential measurement technique
  • Interpolator with 8-bit linear resolution of 20 µm
  • Linear speed up to 5 m/s
  • Buffered I/O stages for signal outputs
  • Configuration inputs for operating mode selection
  • Analog operation modes:
    • sine/cosine signals controlled to 2 Vpp
    • triange or sawtooth signal with selectable amplitude
  • Digital operation modes:
    • A/B quadrature signals with Z index pulse
    • Counter pulses for external binary counters
  • Cascading of multiple iC-ML possible for chain operation (Evaluation of independent scales x, y, z)
  • Error signal output for detection of low magnetic field strength
  • Additional operating modes with reduced power consumption
  • Standby modus when not enabled
  • Extended temperature range of -40...+125 °C

Applications

  • Analog and digital linear sensors
  • Incremental linear encoders
  • Pole wheel sensing
  • Potentiometer replacement
  • Contactless slider/switch
  • Commutation of linear motor
  • Absolute displacement sensing
  • Liquid level meter
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