MAX14940GWE+T

Drivers, Receivers, Transceivers Overview

The MAX14940GWE+T is a half-duplex RS-485/PROFIBUS-DP transceiver featuring 2750VRMS galvanic isolation. It supports data rates up to 20Mbps with ±35kV ESD protection on the cable-side. The device integrates a 450kHz transformer driver and an LDO for isolated power delivery. Logic-side supply (VDDA) ranges from 3.0V to 5.5V, while cable-side supply (VDDB) operates between 4.5V and 5.5V. It utilizes a wide-body 16-pin SOIC package and functions within a temperature range of -40°C to +105°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated transformer driver and LDO simplify isolated DC/DC supply design
• High-performance transceiver compliant with RS-485 and PROFIBUS-DP standards
• Robust communication ensured by integrated true fail-safe circuitry
• Extended protection against electrostatic discharge and surge events

Drivers, Receivers, Transceivers Applications

• Industrial Automation Equipment
• Programmable Logic Controllers
• HVAC Systems
• Power Meters

Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or official manufacturer channels. Confirm that the ordering suffix matches the tape-and-reel packaging format required for surface-mount assembly. Ensure compliance with RoHS directives and check for specific safety regulatory approvals such as UL1577 certification before final procurement integration.

Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed isolated communication exceeding standard RS-485 limits is required. The integrated power transfer capabilities eliminate external isolated DC/DC converters. Verify that the system ground potential differences remain within the 2750VRMS withstand rating. Ensure the application bus topology supports the 1/4-unit load receiver configuration for expanded network node capacity.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX1494x family of isolated transceivers designed for demanding industrial environments. It shares architectural similarities with other members like the MAX14942 and MAX14943 but offers specific integration levels for transformer driving. The wide-body SOIC package facilitates thermal management and provides necessary creepage distances for high-voltage isolation applications.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.