IL 261E

Overview

The IL 261E is a general-purpose digital isolator from the IsoLoop series by NVE Corp/Isolation Products. It features five channels with a 2500Vrms isolation voltage and operates on a 3V to 5.5V supply. The device utilizes Giant Magnetoresistive (GMR) technology for signal transmission without an isolated power source. It supports data rates up to 110Mbps with a common-mode transient immunity of 30kV/µs. The component is housed in a 16-SOIC surface-mount package and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Utilizes GMR technology for high-speed, bidirectional signal isolation without requiring isolated power supplies.
• Provides robust noise immunity with a minimum common-mode transient immunity rating of 30kV/µs.
• Offers flexible channel configuration with four inputs on one side and one output on the other.
• Supports data transmission speeds up to 110Mbps for efficient high-frequency communication.

Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power electronics gate drive circuits
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'E' against the manufacturer's official documentation to confirm pinout compatibility and electrical specifications. Ensure the selected variant matches the required operating temperature range and package dimensions for your PCB layout. Cross-reference the datasheet revision history to account for any recent packaging or labeling changes before finalizing procurement orders.

Selection Notes

Select this component when high-speed data transfer is required alongside strong magnetic noise immunity. The GMR technology offers advantages over capacitive isolators in environments with significant electromagnetic interference. Consider the 16-SOIC package size for space-constrained designs that still require multiple isolated channels. Verify that the system voltage aligns with the 3V to 5.5V operational range.

Part Context

This part belongs to the IsoLoop family, which distinguishes itself by using magnetic coupling rather than optical or capacitive methods. The IL 261E specifically provides five channels in a compact surface-mount format. It is designed for applications demanding reliable isolation in noisy industrial settings where traditional isolators might fail due to EMI sensitivity.

Replacement Considerations

Direct replacements may include other NVE IsoLoop variants such as the IL 261-1E or IL 261VE, depending on package and insulation requirements. Alternative manufacturers like Texas Instruments offer similar channel counts but utilize different isolation technologies, necessitating careful review of propagation delay and CMTI specs.