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MAX14891E：Quad Fault-Protected RS-485/RS-422 Receiver with Fault Detection

Industry's Most Robust RS-422 Receiver Increases Uptime While Simplifying Designs

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.

Key Features 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

MAX14891E: Typical Operating Circuit Applications/Uses Encoder Interfaces Motor Controllers Servo Control Commutation

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