ISO7720D

Overview

The ISO7720D is a reinforced dual-channel digital isolator from Texas Instruments, utilizing capacitive coupling technology. It features a 2/0 channel configuration with unidirectional data flow and supports data rates up to 100 Mb/s. The device operates on a supply voltage range of 2.25 V to 5.5 V, drawing a typical operating current of 11.6 mA. It provides an insulation voltage rating of 3000 Vrms and exhibits a propagation delay of 17 ns. The component is housed in an SOIC-8 package and functions within a temperature range of -55°C to +125°C.

Feature Summary

• Reinforced isolation architecture for robust EMC performance
• Capacitive coupling mechanism for high-speed signal transmission
• Unidirectional data flow capability

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment safety circuits
• Power metering and energy management interfaces

Procurement Notes

Verify the specific suffix 'D' corresponds to the SOIC-8 package and 3000 Vrms rating. Confirm end-of-life status as the manufacturer indicates this part number is scheduled for obsolescence. Ensure compatibility with existing PCB footprints before finalizing procurement decisions.

Selection Notes

Select this component when reinforced isolation is required alongside compact surface-mount packaging. The 2/0 channel layout suits applications needing two isolated outputs from a single input source. Consider the 100 Mb/s speed limit and 17 ns delay for timing-sensitive designs.

Part Context

This device belongs to the ISO772x family of high-performance digital isolators. It shares core architectural similarities with other members but differs in package type and isolation voltage ratings. The 'D' suffix specifically denotes the SOIC-8 variant with lower insulation voltage compared to wider packages.

Replacement Considerations

ISO7720DR serves as the tape-and-reel alternative within the same series.