Quad Differential Line Driver

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These line drivers are pin compatible with 26LS31 in applications where pin 4 = 5V and pin 12 = GND. Internal clamp diodes allow trouble-free operation when driving cable lengths exceeding 100m. Split supplies are provided to minimize standby power dissipation in high voltage applications. The logic should be powered from a regulated 5V supply at the VccBias pin. The output stages may then be powered by a separate supply at VccDrivers, up to 30V. Output voltage swings of 0.3V to VCC-1.9V are typical. The line driver outputs are protected against shorts to ground, shorts to Vcc and to other outputs, by a two-fold scheme of current limiting and thermal shutdown. This assures highly reliable operation in harsh environments.

This part is available in 16L SOIC (Pb-free) package.


  • Supply (Bias) Voltage Range 3.5V to 30V
  • Operation to 800KHz
  • CMOS and TTL Compatible Inputs
  • Separate logic bias and driver supply pins
  • Optional single supply operation for moderate power applications
  • High Impedance Buffered Inputs with hysteresis
  • Tri-State outputs
  • 80mA peak SINK/SOURCE current


  • Industrial encoder interfacing
  • Industrial sensor interfacing
  • Proximity switches
  • Industrial controllers PLC
  • Light barriers
  • MR sensor systems

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
Counter Size N/A
Frequency 800KHz
RoHS6 Compliant Y
Package SOIC