MAX14871EUE+

Overview

The MAX14871EUE+ is an isolated RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates a high-voltage digital isolator and a low-power RS-485/RS-422 transceiver in a single package. The device supports data rates up to 20 Mbps and operates with supply voltages of 3.0 V to 5.5 V on both sides. It features iCoupler technology for signal isolation, providing robust performance in noisy industrial environments while minimizing external component count.

Feature Summary

• Integrates a high-speed RS-485/RS-422 transceiver with a digital isolator
• Utilizes iCoupler technology for galvanic isolation without magnetic components
• Supports data transmission rates up to 20 Mbps
• Includes integrated isolated DC-DC converter for simplified power design

Applications

• Industrial automation systems requiring reliable serial communication
• Factory automation and process control networks
• Building automation and security systems
• Medical equipment with strict isolation requirements

Procurement Notes

Verify the specific suffix 'EUE+' against the manufacturer's current datasheet to confirm pinout and packaging details. Confirm RoHS compliance status as per the latest regulatory documentation. Check for end-of-life notices or recommended new replacements if availability is constrained. Ensure the supplier provides original manufacturer traceability.

Selection Notes

Select this component when designing systems that require galvanic isolation between the microcontroller and the RS-485/RS-422 bus. It is suitable for applications needing high common-mode rejection and protection against ground potential differences. Consider the operating temperature range and data rate requirements to ensure compatibility with the system's communication standards.

Part Context

This part belongs to the MAX1487x family of isolated transceivers. These devices are designed to replace traditional discrete solutions involving optocouplers and isolated DC-DC converters. The integration reduces board space and improves reliability by eliminating external isolation barriers and associated passive components.

Replacement Considerations

Consult the manufacturer's replacement guide for direct pin-to-pin alternatives. Verify electrical specifications such as data rate and isolation voltage before substituting with other isolated transceivers.