Features and Benefits

  • High Flexibility Simplifies Design
    • Switching Rates up to 35Mbps
    • 1.62V to 5.5V Logic Interface
  • Integrated Fault Detection Reduces Downtime
    • Open-Wire and Short-Circuit Detection
    • Overvoltage and Undervoltage Fault Detection
  • Integrated Protection Ensures Robust Communication
    • ±40V Fault Protection Range
    • ±20V Common Mode Range
    • ±25kV HBM ESD
    • ±7kV Air-Gap IEC 61000-4-2 ESD
    • ±10kV Contact IEC 61000-4-2 ESD
    • -40°C to +125°C Operating Temperature Range

Product Details

The MAX14891E quad fault-protected RS-485/RS-422 receiver is ideal for applications requiring high data rates and reduced noise in rugged environments. Each receiver features a wide common-mode input range of -20V to +20V and is guaranteed to receive data at speeds up to 35Mbps.

All receiver inputs are fault-protected against voltage shorts in the ±40V range. Per-channel fault detection provides warning of irregular conditions, such as short circuits and open connections.

The MAX14891E is available in a 20-pin TQFN-EP (4mm x 4mm) and operates over the -40°C to +125°C temperature range.


  • Encoder Interfaces
  • Motor Controllers
  • Servo Control Commutation

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.

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IBIS Models

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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.

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