IL 485E-3V

Overview

The IL 485E-3V is a digital isolator from the IsoLoop series, utilizing Giant Magnetoresistive (GMR) technology. It provides three independent channels for RS422/RS485 signal isolation with a voltage rating of 2.5kVrms. The device operates within a supply voltage range of 4.5V to 5.5V and supports data rates up to 100 Mbps. It features a propagation delay of 15ns and a common-mode transient immunity of 15kV/µs. The component is housed in a 16-SOIC package and functions reliably across an operating temperature range of -40°C to 100°C.

Feature Summary

• Provides galvanic isolation for differential communication interfaces using GMR sensor technology
• Ensures reliable signal transmission in high-noise environments through high common-mode transient immunity
• Supports bidirectional data transfer for RS422 and RS485 applications

Applications

• Industrial automation control systems
• RS485 communication bus networks
• Medical equipment requiring electrical isolation
• Power monitoring and metering devices

Procurement Notes

Verify RoHS compliance status as older revisions may not meet current environmental standards. Confirm package availability since distribution channels vary. Check for specific suffix requirements if thermal or mechanical variations are needed. Ensure compatibility with existing PCB footprints before ordering. Validate lead times due to potential discontinuation risks associated with legacy components.

Selection Notes

Select this component when designing isolated RS422 or RS485 interfaces requiring robust noise immunity. The 4.5V to 5.5V supply range suits standard logic levels. Consider the 16-SOIC package for surface-mount assembly constraints. Evaluate the 15kV/µs CMTI for environments with rapid voltage transients. Compare against newer NVE models if higher data rates or lower power consumption are required.

Part Context

Part of the IsoLoop family leveraging GMR technology for superior performance over capacitive isolation. Offers better linearity and lower jitter compared to traditional methods. Designed for harsh industrial environments where reliability is critical. Provides a compact solution for multi-channel isolation needs in communication protocols.

Replacement Considerations

IL 485E is a similar alternative within the same product family. Verify pinout compatibility and electrical specifications before substitution. Check for updated RoHS compliance in replacement parts. Ensure the substitute supports the required RS422/RS485 interface standards.