MAX14858GWE+

Drivers, Receivers, Transceivers Overview

The MAX14858GWE+ is a full-duplex isolated RS-485/RS-422 transceiver providing 5000V RMS galvanic isolation between the UART and cable sides. It supports data rates up to 25Mbps with one driver and one receiver channel. The device features an integrated LDO for cable-side power, ±35kV ESD protection on bus pins, and operates from -40°C to +105°C. Supply voltage ranges are 1.71V to 5.5V for VDDA and 3.0V to 5.5V for VDDB. It utilizes a wide-body 16-pin SOIC package.

Drivers, Receivers, Transceivers Feature Summary

• Provides high-performance communication across isolation barriers using integrated capacitors.
• Includes an internal low-dropout regulator to simplify cable-side power supply design.
• Features true fail-safe circuitry that ensures a logic-high output during input shorts or open circuits.

Drivers, Receivers, Transceivers Applications

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

Drivers, Receivers, Transceivers Procurement Notes

Verify the component against official Analog Devices documentation to confirm pinout compatibility and electrical specifications. Ensure the wide-body 16-pin SOIC package matches the target PCB footprint. Confirm that the specific ordering suffix aligns with the required tape-and-reel or tube packaging format before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this model when high-speed 25Mbps communication is required alongside robust isolation capabilities. The integrated LDO reduces external component count for the cable side. Verify that the system ground potential differences do not exceed the rated isolation voltage limits. Consider the thermal performance in enclosed industrial enclosures due to the specified junction temperature constraints.

Drivers, Receivers, Transceivers Part Context

This component belongs to the MAX14856/MAX14858 family of isolated transceivers. The primary distinction within the family is the maximum data rate; the MAX14858 supports 25Mbps while the MAX14856 is limited to 500kbps. Both share identical pinouts, isolation ratings, and protection features.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX14856 serves as a lower-speed alternative within the same package and feature set. Other isolated RS-485 transceivers may require external LDOs and lack the specific ±35kV ESD rating found in this series.