IL 711T-3

Overview

The IL 711T-3 is a general-purpose digital isolator from the IsoLoop series, manufactured by NVE Corp/Isolation Products. It features two channels with unidirectional signal transmission and utilizes Giant Magnetoresistive (GMR) technology for galvanic isolation. The device supports a supply voltage range of 3V to 5.5V and operates within an industrial temperature range of -40°C to 125°C. Key electrical specifications include a data rate of 110Mbps, a maximum propagation delay of 15ns, and a common-mode transient immunity of 100kV/µs. It provides 2500Vrms isolation voltage and is housed in an 8-SOIC surface-mount package.

Feature Summary

• Utilizes GMR technology for high-speed digital isolation without requiring an isolated power supply
• Provides robust galvanic isolation with high common-mode transient immunity for noisy environments
• Offers CMOS-compatible logic levels for direct interfacing with standard digital circuits

Applications

• Isolated data transmission systems
• Fieldbus isolation interfaces
• High-speed digital system isolation

Procurement Notes

Verify the specific suffix 'T-3' confirms the 8-SOIC surface-mount package variant, distinct from PDIP or other packaging options. Confirm RoHS compliance status as some older IsoLoop variants may differ. Ensure the application environment stays within the specified -40°C to 125°C operating temperature range. Check for any specific ESD handling requirements during assembly.

Selection Notes

Select this component when a compact surface-mount solution is required for two-channel isolation. It is suitable for applications needing high speed (110Mbps) and high CMTI (100kV/µs). Consider the 8-SOIC footprint constraints against available PCB space. Compare against the IL 711T-2E if through-hole mounting is preferred instead of surface mount.

Part Context

The IL 711T-3 belongs to the IsoLoop family, which leverages GMR sensors for isolation. This family distinguishes itself by not requiring external isolated DC/DC converters, simplifying board design. The IL 711 variant specifically offers dual-channel isolation, making it efficient for bidirectional or parallel data lines compared to single-channel alternatives.

FAQ

Does the IL 711T-3 require an isolated power supply?

No, the IL 711T-3 does not require an isolated power supply; it operates directly from the standard 3V to 5.5V supply rails on both sides.

What is the maximum propagation delay for this device?

The maximum propagation delay (tpLH/tpHL) is 15ns.