IL 485

Overview

The IL 485 is a discontinued digital isolator manufactured by NVE Corp/Isolation Products, utilizing Giant Magnetoresistance (GMR) technology. It provides galvanic isolation for RS-422 and RS-485 serial communication interfaces within a standard 16-pin SOIC package. The device supports data rates up to 35Mbps with a minimum Common Mode Transient Immunity (CMTI) of 20kV/µs. It operates on a single supply voltage ranging from 3V to 5.5V and features three channels configured as two inputs on side 1 and one input on side 2. The component meets ANSI EIA/TIA-422-B and RS-485 standards.

Feature Summary

• Integrates isolated RS-485 interface functionality into a standard 16-pin SOIC package
• Employs GMR technology for low electromagnetic interference generation
• Provides high common mode transient immunity for noisy industrial environments

Applications

• RS-485 serial communication systems requiring galvanic separation
• Industrial control networks adhering to ANSI EIA/TIA-422-B standards
• Data acquisition systems needing robust signal isolation

Procurement Notes

Verify the obsolete status of this part number before procurement planning. Confirm availability through authorized distributors or secondary markets. Evaluate replacement options such as the IL 485E or equivalent components from other manufacturers to ensure long-term supply chain stability and compliance with current manufacturing requirements.

Selection Notes

Select this component only if legacy compatibility with existing RS-485 designs is required. Ensure the system can accommodate the specific 2/1 channel configuration. Consider the operating temperature range and voltage specifications against application demands. Prioritize alternative active parts if new design implementation is feasible to avoid end-of-life constraints.

Part Context

This device belongs to the IsoLoop® family of digital isolators produced by NVE Corporation. It represents an early integration of magnetic isolation technology into standard communication interface packages. The product line focuses on providing reliable signal transmission across isolation barriers while minimizing noise coupling in sensitive electronic circuits.

Replacement Considerations

The IL 485E is listed as a similar substitute by the manufacturer. Other compatible alternatives include Broadcom ACSL-6310-00TE. Verify pinout and electrical parameter compatibility when transitioning to these replacement parts.