ADM2865EBRNZ-RL7

Overview

The ADM2865EBRNZ-RL7 is a half-duplex RS-485 transceiver manufactured by Analog Devices Inc. It features integrated isolation providing 5.7 kV RMS signal and power isolation, eliminating the need for external isolated DC/DC converters. The device supports data rates up to 25 Mbps and includes ±15 kV IEC ESD protection on the bus pins. It operates within a supply voltage range of 3 V to 5.5 V and functions across an industrial temperature range of -40°C to +105°C. The component is housed in a WSOIC-28 package.

Feature Summary

• Integrates high-voltage isolation for both signal and power transmission paths
• Provides robust electromagnetic interference immunity via balanced differential signaling
• Includes built-in fault protection for driver outputs against short circuits
• Offers enhanced electrostatic discharge resilience compliant with IEC standards

Applications

• Industrial automation control systems requiring galvanic isolation
• Building automation networks utilizing RS-485 communication protocols
• Factory floor instrumentation connected to central monitoring units
• Energy metering devices needing secure data transmission over long distances

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing components. Confirm that the WSOIC-28 package variant matches your PCB footprint requirements. Ensure compatibility with 3 V to 5.5 V logic levels for both side interfaces. Check for moisture sensitivity labeling if storage conditions are critical. Validate that the 5.7 kV RMS isolation rating meets your system's safety certification needs.

Selection Notes

Select this component when high-speed data transfer at 25 Mbps is required alongside significant voltage isolation. It is suitable for designs where space constraints prevent the use of separate isolators and DC/DC converters. Consider this part for environments with high noise or potential ground potential differences. It simplifies board layout by integrating isolation barriers directly into the transceiver.

Part Context

This device belongs to the ADM286x family of isolated RS-485 transceivers from Analog Devices. It shares architectural similarities with other members like the ADM2861 but offers higher data rate capabilities. The family focuses on reducing bill-of-materials count by combining transceiver and isolation functions. It targets applications demanding reliable communication in electrically noisy industrial settings.

Replacement Considerations

Direct substitutes include other ADM286x series variants such as the ADM2861E or ADM2863E, depending on required data rates. Verify pin-to-pin compatibility before swapping. Ensure the replacement maintains the 5.7 kV RMS isolation barrier. Check if the alternative supports the necessary 25 Mbps speed or if lower speeds are acceptable.