ADM2487EBRWZ

Overview

The ADM2487EBRWZ is a digital isolator transceiver designed for RS-422 and RS-485 communication interfaces. It integrates magnetic coupling technology to provide galvanic isolation between the logic side and the bus side. The device supports data rates up to 500 kbps and operates with supply voltages ranging from 3.0 V to 5.5 V. It features a common mode transient immunity of 25 kV/µs and includes 15 kV ESD protection on all pins. The component is housed in a 16-pin SOIC package and functions as a half-duplex or full-duplex transceiver.

Feature Summary

• Integrates magnetic coupling technology for high-speed digital isolation
• Provides 15 kV electrostatic discharge protection on all pins
• Supports both half-duplex and full-duplex communication modes
• Features high common mode transient immunity for noisy environments

Applications

• Industrial automation control systems
• Factory floor sensor networks
• Building automation and security systems
• Medical equipment requiring galvanic isolation

Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature range variant when sourcing. Confirm the package type matches the required PCB footprint, specifically the 16-SOIC (0.295 inch width). Ensure the design accounts for the 3.0 V to 5.5 V operating voltage range. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when designing systems requiring robust isolation for RS-485/RS-422 buses. It is suitable for applications demanding high noise immunity and ESD protection. Consider the 500 kbps data rate limit against system requirements. Evaluate the need for integrated transformer isolation versus discrete solutions for space-constrained designs.

Part Context

This part belongs to Analog Devices' ADM248x family of isolated transceivers. These devices replace traditional optocoupler-based designs by using on-chip transformer technology. The family offers improved performance in terms of speed, power consumption, and reliability compared to legacy isolation methods.

Replacement Considerations

Check for direct pin-compatible substitutes within the same manufacturer's portfolio that offer similar isolation ratings and data rates. Verify that any replacement maintains the 15 kV ESD protection level and 25 kV/µs CMTI specifications.