IL 422E

Overview

The IL 422E is a digital isolator from the IsoLoop series by NVE Corp/Isolation Products, utilizing Giant Magnetoresistive (GMR) technology. It provides 2500Vrms isolation for three channels with a data rate of 25Mbps and a common-mode transient immunity of 20kV/µs. The device operates on a 3V to 5.5V supply within a -40°C to 100°C temperature range. Packaged in a 16-SOIC format, it supports RS422 and RS485 communication protocols without requiring an isolated power source.

Feature Summary

• Integrates GMR sensor technology for high-speed signal transmission across isolation barriers
• Supports RS422 and RS485 differential signaling standards
• Provides robust common-mode transient immunity for noisy environments

Applications

• RS422 and RS485 communication bus isolation
• Industrial process control systems
• Factory automation networks

Procurement Notes

Verify the specific package variant and suffix against official datasheets before ordering. Confirm RoHS compliance status as historical records may vary. Ensure the supplier provides valid traceability documentation. Cross-reference the manufacturer part number with authorized distributor listings to avoid counterfeit components. Validate lead times directly with the manufacturer or authorized agents.

Selection Notes

Select this component when RS422 or RS485 protocol isolation is required. The GMR technology offers superior performance compared to capacitive alternatives in high-noise settings. Verify that the 25Mbps speed meets system requirements. Check if the 16-SOIC footprint fits the PCB layout constraints. Ensure the operating temperature range aligns with the application environment.

Part Context

This device belongs to the IsoLoop family, which leverages magnetic sensing for isolation. Unlike optical or capacitive isolators, it does not suffer from degradation over time due to UV exposure or voltage stress. The IL 422E specifically targets serial communication interfaces, providing reliable data integrity in electrically noisy industrial settings.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.