IL 260-3B

Overview

The IL 260-3B is a discontinued general-purpose digital isolator manufactured by NVE Corp/Isolation Products. It utilizes GMR technology to provide electrical isolation with a rating of 2500Vrms across five channels. The device supports data rates up to 110Mbps and features a common-mode transient immunity of 30kV/µs. Propagation delays are specified at a maximum of 15ns for both low-to-high and high-to-low transitions, with typical rise and fall times of 1ns. It operates within a supply voltage range of 3V to 5.5V and functions reliably in temperatures from -40°C to 85°C. The component is housed in a 16-SOIC package.

Feature Summary

• Five-channel digital isolation utilizing patented IsoLoop GMR technology
• High-speed data transmission capability supporting 110Mbps rates
• Robust noise immunity characterized by 30kV/µs common-mode transient rejection

Applications

• Motor control systems requiring isolated signal paths
• FPGA interfaces for high-speed data handling
• General-purpose digital isolation in industrial equipment

Procurement Notes

This component is officially classified as obsolete and no longer manufactured by the original producer. Verification of availability should focus on surplus distributors or authorized secondary market sources rather than direct factory orders. Buyers must confirm the specific lot date and physical condition of available units, as stock levels fluctuate rapidly. Ensure that any sourced inventory matches the exact suffix specifications required for the application design.

Selection Notes

Designers seeking this specific part number must account for its end-of-life status when planning long-term production runs. Alternative components within the same family, such as the IL 260-3E, offer similar performance metrics but may require pinout or packaging verification. Evaluate replacement options based on current supply chain stability and ensure that substitute devices meet the necessary isolation voltage and speed requirements for the target system.

Part Context

The IL 260 series represents NVE's high-performance digital isolators built on Giant Magnetoresistance (GMR) technology. This family provides superior reliability compared to traditional optical isolators, offering extended lifespan and consistent performance over time. The IL 260-3B specifically addresses applications needing multiple isolated channels with high-speed data integrity in electrically noisy environments.

Replacement Considerations

The IL 260-3E is documented as a similar alternative within the manufacturer's portfolio. Users should verify compatibility regarding package dimensions and electrical characteristics before substitution.