ADM2463EBRWZ-RL7

Overview

The ADM2463EBRWZ-RL7 is a full-duplex, signal-isolated RS-485 transceiver manufactured by Analog Devices Inc. It supports data rates up to 500 kbps and provides 5.7 kV RMS isolation between the primary logic side and the isolated bus side. The device operates with a primary supply voltage (VDD1) ranging from 1.7 V to 5.5 V and an isolated secondary supply (VDD2) from 3.0 V to 5.5 V. It features ±15 kV IEC ESD protection on the A, B, Y, and Z pins, high common-mode transient immunity exceeding 250 kV/µs, and cable inversion capabilities for reversed connections. Packaged in a 16-lead wide-body SOIC_W.

Feature Summary

• Provides robust 5.7 kV RMS signal isolation with high common-mode transient immunity.
• Features integrated cable inversion inputs to correct reversed A/B and Y/Z bus connections while maintaining fail-safe performance.
• Includes built-in IEC61000-4-2 electrostatic discharge protection rated at ±15 kV air discharge and ±12 kV contact discharge.
• Supports hot swap operations with glitch-free power-up and power-down sequences.

Applications

• Heating, ventilation, and air conditioning (HVAC) networks
• Industrial field buses
• Building automation systems
• Utility networks

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific ordering suffix matches the required package type and reel quantity specifications. Ensure proper handling procedures are followed due to the sensitivity of the internal isolation barrier and digital logic components during storage and assembly.

Selection Notes

Select this model when full-duplex communication is required alongside galvanic isolation. The flexible VDD1 range accommodates various logic levels, while the VDD2 range supports standard 3.3 V and 5 V bus supplies. Consider the cable inversion feature if installation errors involving reversed differential pairs are a potential risk in the deployment environment.

Part Context

This component belongs to the ADM246xE family of isolated RS-485 transceivers. It shares architectural similarities with the half-duplex ADM2461E but adds independent transmit and receive paths for simultaneous data transfer. The wide-body SOIC_W package design facilitates higher creepage and clearance distances compared to standard packages.

Replacement Considerations

ADM2461EBRWZ-RL7

FAQ

How does the cable inversion feature function?

The ADM2463E includes dedicated INVR inputs that allow the receiver to invert its input polarity. This enables the correction of reversed cable connections on the A and B bus pins without losing receiver fail-safe performance.

What is the maximum operating temperature range?

The device is rated for an extended industrial operating temperature range from -40°C to +125°C.

Does the device support Profibus applications?

Yes, when powered with a VDD2 supply of 5 V, the high differential output voltage meets or exceeds the requirements for Profibus nodes.