IL 261VE

Overview

The IL 261VE is a general-purpose digital isolator from NVE Corp/Isolation Products, utilizing patented IsoLoop® technology based on Giant Magnetoresistance (GMR) sensing. It features five isolated channels with a voltage isolation rating of 6000Vrms and supports data rates up to 110Mbps. The device offers a common-mode transient immunity (CMTI) of 30kV/µs, with maximum propagation delays of 15ns for both low-to-high and high-to-low transitions. It operates on a single supply voltage ranging from 3V to 5.5V and is housed in a 16-SOIC package.

Feature Summary

• Utilizes patented IsoLoop® GMR technology for robust signal isolation without optical components
• Provides high-speed data transmission capability supporting rates up to 110 Mbps
• Delivers superior noise immunity with a common-mode transient immunity rating of 30 kV/µs
• Features a wide operating temperature range suitable for demanding industrial environments

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing high-voltage safety isolation
• Power electronics interfaces for motor control and inverters
• Test and measurement instrumentation for signal integrity

Procurement Notes

Verify the specific suffix 'VE' against official NVE documentation to confirm the exact package variant and temperature grade. Ensure compatibility with system voltage requirements between 3V and 5.5V. Confirm that the 16-SOIC footprint matches the PCB layout design. Check for RoHS compliance status if required by regional regulations. Validate lead times through authorized distributors as availability may fluctuate.

Selection Notes

Select the IL 261VE when five independent isolation channels are required within a compact surface-mount package. Consider this component for applications demanding high CMTI to prevent false triggering in noisy environments. Ensure the design accommodates the 16-SOIC dimensions and thermal characteristics. Verify that the 110 Mbps speed meets the system's data throughput needs without unnecessary overhead.

Part Context

The IL 261VE belongs to the IL26x family of five-channel digital isolators manufactured by NVE. These devices leverage proprietary IsoLoop® technology, distinguishing them from capacitive or optical isolators. The family includes variants like IL 260 and IL 261, differentiated primarily by isolation voltage ratings and channel configurations. This series is designed for high-reliability applications where space and performance are critical constraints.

Replacement Considerations

Direct substitutes include other five-channel digital isolators with comparable isolation voltages and data rates. Verify pinout compatibility before replacing to avoid PCB redesign. Alternative technologies such as capacitive isolators may offer different trade-offs in power consumption or size. Consult NVE application notes for specific migration guidelines if transitioning from older isolation technologies.