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The encoding stage operates on 6, 7 or 8 bits of resolution and can resolve a magnetic period into 256 linear steps, i.e. into increments of 20 μm (tape with a pole pitch of 2.56 mm). Different operating modes are available by pin selection, offering both analog output signals (sawtooth, triangle and sine/cosine) and digital output signals (encoder quadrature and counter control). A sequencer logic eases daisy chaining of multiple sensors on a 4-wire bus and can be selected optionally.

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

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
  - Triangle 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

Related products

iC-MA Angular Hall Encoder
cascadable with iC-ML