ADM2463EBRWZ

Overview

The ADM2463EBRWZ is a full-duplex, signal-isolated RS-485 transceiver featuring a 5.7 kV RMS isolation barrier and ±15 kV IEC ESD protection on bus pins. It supports data rates up to 500 kbps with a primary VDD1 supply range of 1.7 V to 5.5 V and an isolated VDD2 supply range of 3.0 V to 5.5 V. The device operates within a temperature range of -40°C to +125°C and utilizes a 16-lead wide-body SOIC_W package providing over 8.0 mm of creepage and clearance.

Feature Summary

• Integrated cable inversion logic for correcting reversed A, B, Y, and Z bus connections while maintaining receiver fail-safe performance
• Robust common-mode transient immunity exceeding 250 kV/µs across the full operating voltage and temperature range
• High differential output voltage architecture optimized for long cable runs and Profibus compliance at 5 V operation
• Full hot-swap support ensuring glitch-free power-up and power-down sequences without bus disruption

Applications

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

Procurement Notes

Verify the specific ordering suffix against official Analog Devices documentation to confirm package type and tape-and-reel specifications. Ensure that any requested variants match the exact electrical characteristics and regulatory approvals listed in the current datasheet revision.

Selection Notes

Select this component for applications requiring high working voltage isolation and robust ESD protection on the bus lines. The flexible primary-side voltage range accommodates various logic levels, while the full-duplex configuration supports simultaneous transmission and reception on separate Y and Z pairs.

Part Context

This part belongs to the ADM2461E/ADM2463E family of 500 kbps, 5.7 kV RMS signal-isolated RS-485 transceivers. The family includes half-duplex and full-duplex options designed for environments with significant electromagnetic interference and high common-mode noise voltages.

Replacement Considerations

Direct functional replacements within the same isolation voltage class include the ADM2461E for half-duplex applications. Verify pinout compatibility and insulation ratings when substituting with other RS-485 transceivers from different manufacturers.

FAQ

How does the cable inversion feature function?

The INV and INVR pins allow the user to invert the driver transmit data and receiver inputs respectively. This corrects communication errors caused by reversed cable connections on the A, B, Y, and Z bus pins while maintaining full receiver fail-safe performance.

What are the supported voltage ranges for the power supplies?

The primary side supply (VDD1) supports a flexible range of 1.7 V to 5.5 V. The isolated side supply (VDD2) operates within a range of 3.0 V to 5.5 V.

Does the device support hot swapping?

Yes, the ADM2463EBRWZ provides full hot-swap support, ensuring glitch-free power-up and power-down sequences without disrupting the bus or causing data corruption.