ISO7820FDWR

Overview

The ISO7820FDWR is a dual-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It features capacitive coupling for signal isolation with a maximum insulation voltage of 5700 Vrms. The device supports unidirectional data transmission at rates up to 100 Mb/s. It operates on a supply voltage range of 2.25 V to 5.5 V and draws a typical operating current of 11.9 mA. Propagation delay is specified at 10.7 ns. The component functions within an ambient temperature range of -55°C to +125°C.

Feature Summary

• Provides reinforced electrical isolation between circuits using capacitive coupling technology.
• Supports high-speed digital signaling with data rates reaching 100 Mbps.
• Enables level translation across wide supply voltage ranges without external components.

Applications

• Industrial communication interfaces requiring galvanic isolation
• Medical equipment signal conditioning
• Power electronics control circuitry

Procurement Notes

Verify the complete part number including suffixes against official Texas Instruments documentation to ensure correct packaging and specifications. Confirm that the SOIC-16 package variant matches your PCB footprint requirements. Check RoHS compliance status through the manufacturer's official datasheet or certification documents before finalizing procurement decisions.

Selection Notes

Select this component when dual-channel unidirectional isolation is required with high voltage withstand capabilities. Consider the 100 Mbps data rate limit and 11.9 mA power consumption relative to system constraints. Ensure the 16-pin SOIC form factor fits the design layout. Validate thermal performance within the specified -55°C to +125°C operating range for the intended environment.

Part Context

This device belongs to the ISO78xx family of high-immunity digital isolators from Texas Instruments. These components utilize proprietary capacitive isolation technology to provide robust signal transmission across isolation barriers. The family offers various channel configurations and polarity options to suit different interface needs while maintaining high reliability standards.

Replacement Considerations

Consult official Texas Instruments substitution guides for verified alternatives. Cross-reference pinouts and electrical characteristics carefully when considering equivalent parts from other manufacturers to ensure compatibility.