IL 3285

Overview

The IL3285 is a CML bus transceiver from the IL3285 series, manufactured by NVE Corp/Isolation Products. It features a 16-pin surface-mount SOIC package and provides non-inverting logic functionality. The device operates within a supply voltage range of 3V to 5.5V and supports data rates up to 40Mbps with a propagation delay of 25ns maximum. It offers high common-mode transient immunity of 15kV/µs and utilizes GMR technology for digital isolation.

Feature Summary

• Provides robust signal integrity over long cables by delivering at least 1.5V into a 54Ω load
• Compatible with 3V input supplies for flexible power management
• Utilizes Giant Magnetoresistance (GMR) technology for reliable digital isolation

Applications

• RS-422 communication systems
• RS-485 network interfaces
• Industrial control bus isolation

Procurement Notes

Verify the specific suffix code (e.g., E, -3E) against the official datasheet to ensure correct pinout and electrical characteristics. Confirm RoHS compliance status as it varies by revision. Check for obsolete status or active production notices before finalizing procurement plans.

Selection Notes

Select this component when high-speed CML interface isolation is required for RS-422 or RS-485 applications. Ensure the system design accommodates the 16-SOIC footprint and validates the 3V to 5.5V operating voltage range against the target power supply constraints.

Part Context

The IL3285 belongs to the IsoLoop family of digital isolators utilizing GMR sensing technology. It serves as an isolated transceiver bridge between microprocessor systems and industrial field buses, ensuring galvanic separation while maintaining high data throughput and noise immunity in electrically noisy environments.

Replacement Considerations

IL 3285E is listed as a similar substitute part number.