Features and Benefits

  • IO-Link® Compatible (COM1/COM2/COM3)
  • 8V to 34V Operation
  • Hot Swap Controller Protected Supply Outputs
  • Discrete Power MOSFETs for Ruggedness and Flexibility
  • Configurable 100mA (4-Port), 200mA (2-Port), or 400mA (1-Port) CQ Drive Capability
  • Automatic Wake-Up Pulse Generation
  • Automatic Cable Sensing
  • CQ Pins Protected to ±50V
  • Configurable L+ Current Limit with Foldback
  • Short Circuit, Input UV/OV and Thermal Protection
  • Optional Interrupt and Auto-Retry after Faults
  • 2.9V to 5.5V Logic Supply for Flexible Digital Interface
  • No Damage or Latchup to ±8kV HBM ESD
  • 38-Lead (5mm × 7mm) QFN and TSSOP Packages

Product Details

The LTC2874 provides a rugged, 4-port IO-Link power and communications interface to remote devices connected by cables up to 20m in length.

Output supply voltage and inrush current are ramped up in a controlled manner using external N-channel MOSFETs, providing improved robustness compared to fully integrated solutions.

Wake-up pulse generation, line noise suppression, connection sensing and automatic restart after fault conditions are supported, along with signaling at 4.8kb/s, 38.4kb/s, and 230.4kb/s.

Configuration and fault reporting are exchanged using a SPI-compatible 4-wire interface that operates at clock rates up to 20MHz.

The LTC2874 implements an IO-Link master PHY. For IO-Link device designs, see the LT3669.


  • IO-Link Masters
  • Intelligent Sensors and Actuators
  • Factory Automation Networks

Product Categories

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

Tools & Simulations


Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

Linduino code repository on GitHub and instructions on how to use the code.

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Product Recommendations

LTC2874 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Sample & Buy

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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.