MAX14859GWE+T

Drivers, Receivers, Transceivers Overview

The MAX14859GWE+T is a full-duplex isolated RS-485/RS-422 transceiver providing 5000V RMS galvanic isolation. It supports data rates up to 25Mbps with ±35kV ESD protection on driver outputs and receiver inputs. The device integrates a 450kHz transformer driver for power transfer across the isolation barrier and an internal LDO for cable-side power regulation. Operating voltage ranges from 3.0V to 5.5V on both UART and cable sides, with a wide operating temperature range of -40°C to +105°C in a 16-pin Wide SOIC package.

Drivers, Receivers, Transceivers Feature Summary

• Integrated transformer driver enables efficient power transfer across the isolation barrier using an external center-tapped transformer.
• Built-in low-dropout regulator provides regulated 3.3V output for the cable-side circuitry, simplifying system design.
• High-performance transceiver supports flexible designs compliant with RS-485 standards and allows up to 128 devices on the bus.

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 direct manufacturer channels. Confirm the specific suffix 'GWE+T' corresponds to the tape-and-reel packaging format required for automated assembly processes. Ensure compliance with RoHS directives and check for any recent lifecycle status updates regarding production availability.

Drivers, Receivers, Transceivers Selection Notes

Select this model when high-speed communication at 25Mbps is required alongside robust galvanic isolation. The integrated power management features reduce external component count compared to discrete solutions. Consider the MAX14857 variant if lower data rates suffice, as it shares the same pinout and isolation characteristics but operates at 500kbps.

Drivers, Receivers, Transceivers Part Context

This component belongs to the MAX1485x family of isolated transceivers designed for harsh industrial environments. It addresses ground loop issues and noise immunity challenges common in long-distance serial communications. The integration of isolation barriers directly within the transceiver package offers a compact alternative to separate isolator chips.

Drivers, Receivers, Transceivers Replacement Considerations

MAX14857GWE+T: Compatible alternative offering identical pinout and isolation features but limited to 500kbps data rate.