IL 611A-3

Overview

The IL 611A-3E is a general-purpose digital isolator from the IsoLoop series, manufactured by NVE Corp. It features two independent channels with unidirectional signal transmission. The device utilizes Giant Magnetoresistive (GMR) sensing technology and provides 2500Vrms isolation voltage without requiring an isolated power supply. It supports data rates up to 10Mbps and offers a common-mode transient immunity of 15kV/µs. Operating on a single supply voltage between 3V and 5.5V, it functions within a temperature range of -40°C to 85°C. The component is housed in an 8-SOIC package.

Feature Summary

• Utilizes GMR sensing technology for galvanic isolation without isolated power supplies
• Provides high common-mode transient immunity for noisy environments
• Supports unidirectional signal transmission across two independent channels

Applications

• General-purpose digital isolation in industrial systems
• Signal transmission across galvanic boundaries in measurement equipment
• Isolation interfaces for microcontrollers and communication buses

Procurement Notes

Verify the specific suffix against official documentation, as the model IL 611A-3 typically corresponds to the IL 611A-3E variant in standard SOIC packaging. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the ordering part number matches the exact package width and tape/reel specifications required by your manufacturing line.

Selection Notes

Select this component when a robust, low-power digital isolator is needed for applications requiring moderate data speeds. The absence of an isolated power supply requirement simplifies circuit design compared to transformer-based isolators. Consider the 8-SOIC package dimensions for PCB layout constraints and verify that the 10Mbps speed meets the system's timing requirements.

Part Context

This device belongs to the IL600A series of digital isolators from NVE Corporation. The series leverages proprietary GMR technology to provide reliable isolation in compact packages. The IL 611A-3E specifically addresses the need for dual-channel isolation in space-constrained designs where high reliability and noise immunity are critical.

Replacement Considerations

Public confirmed substitute part numbers include HCPL-0930.