ISO7720DR

Overview

The ISO7720DR is a high-speed, robust EMC reinforced dual-channel digital isolator from Texas Instruments. It features capacitive coupling technology with a 3000 Vrms isolation rating and supports data rates up to 100 Mb/s. The device operates on a single supply voltage ranging from 2.25 V to 5.5 V, drawing a typical operating current of 11.6 mA. It provides unidirectional signal transmission across two channels within an 8-SOIC package. Key performance metrics include a maximum propagation delay of 17 ns, a common-mode transient immunity of 85 kV/µs, and an extended operating temperature range from -55°C to +125°C.

Feature Summary

• Robust electromagnetic compatibility design ensures reliable operation in noisy environments
• Capacitive coupling architecture enables high-speed digital signal isolation without magnetic components
• Reinforced insulation rating meets stringent safety standards for industrial applications

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced electrical safety barriers
• Power metering circuits utilizing isolated analog front ends

Procurement Notes

Verify the specific suffix DR indicates the SOIC-8 tape-and-reel packaging configuration. Confirm that the component complies with RoHS directives and check the moisture sensitivity level before storage. Ensure the procurement source is authorized to guarantee authenticity and traceability for this Texas Instruments part number.

Selection Notes

Select this component when a dual-channel solution with 3000 Vrms isolation is required. It is suitable for designs needing 100 Mbps data throughput with low power consumption. Consider the 8-SOIC footprint for space-constrained PCB layouts. Verify that the unidirectional channel configuration matches the system's signal flow requirements.

Part Context

This device belongs to the ISO772x family of dual-channel digital isolators. It complements other variants like the ISO7721 by offering specific channel configurations. The series is designed to replace traditional optocouplers in modern high-speed digital interfaces while maintaining compact form factors.

Replacement Considerations

Check for ISO7720DW or ISO7720DWV if higher 5000 VRMS isolation ratings are needed. Verify pinout compatibility when substituting with other Texas Instruments digital isolators.