ISO7820DWWR

Overview

The ISO7820DWWR is a high-performance, dual-channel digital isolator from Texas Instruments. It operates with a supply voltage range of 2.25 V to 5.5 V and supports signaling rates up to 100 Mbps. The device features a reinforced insulation rating of 8000 VPK and an isolation voltage of 5700 Vrms. It utilizes capacitive coupling technology and offers a common-mode transient immunity (CMTI) of 100 kV/µs. Packaged in a 16-pin SOIC (DW) format with tape-and-reel delivery, it functions within a temperature range of -55°C to +125°C.

Feature Summary

• Provides reinforced insulation for safety-critical applications
• Supports bidirectional level translation across wide supply ranges
• Delivers high common-mode transient immunity for noisy environments

Applications

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

Procurement Notes

Verify the specific suffix 'WR' confirms the tape-and-reel packaging configuration rather than tube packaging. Ensure the design accounts for the 16-pin SOIC footprint dimensions. Confirm that the 8000 VPK reinforced rating meets the specific safety standards required by the end application. Check for any recent product change notifications regarding manufacturing site or material composition updates.

Selection Notes

Select this component when dual-channel isolation with reinforced safety ratings is mandatory. It is suitable for designs requiring bidirectional data transfer between domains with different ground potentials. Consider the 100 Mbps data rate limit for signal integrity requirements. Evaluate the 2.25 V to 5.5 V supply compatibility against both sides of the isolation barrier.

Part Context

This part belongs to the ISO7820 family of digital isolators. It shares the same core isolation architecture as other variants but differs in packaging and channel configuration. The DW package denotes a wide-body SOIC, while the WR suffix specifies reel-based distribution for automated assembly processes.

Replacement Considerations

ISO7820DW is the equivalent tube-packaged version of this component. Other ISO78xx series devices may offer similar electrical characteristics but differ in channel count or insulation ratings.