Quad Differential Line Driver

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Product description

iC-HD2 is a robust line driver for industrial 5 V and 24 V applications with four complementary output channels. At a supply of 24 V the push-pull driver stages typically provide 200 mA to discharge the line and also have a low saturation voltage (of typically 200 mV with a 40 mA low-side load). The outputs are current limited and short-circuit-proof, shutting down with excessive temperature. VREF acts as a 5 V voltage supply for external loads of up to 5 mA.


  • Complementary short-circuit-proof push-pull driver stages for RS422 and 24 V applications up to 2 MHz
  • Pin-compatible to xx2068
  • Integrated line adaptation for high signal quality at 24 V
  • Moderate slew rate reduces EMI
  • High driving capability of typically 200 mA at 24 V
  • Output saturation of just 0.3 V at 40 mAdc
  • Tristate function with excessive temperature
  • Error messaging with excessive temperature and undervoltage
  • TTL-/CMOS-compatible Schmitt trigger inputs, voltage-proof to 40 V
  • Tristate function for bus applications
  • Integrated 5 V voltage regulator for 5mA
  • 4.5 to 35 V single supply operation with low static power dissipation
  • Operating temperature from -25 to 125 °C (-40 °C is optional)


  • Line drivers for 24 V control engineering
  • Linear scales and encoders
  • Sensor systems
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