ISO7820DW

Overview

The ISO7820DW is a high-performance, reinforced dual-channel digital isolator manufactured by Texas Instruments. It operates within a supply voltage range of 2.25 V to 5.5 V and supports data rates up to 100 Mb/s. The device features a maximum propagation delay of 10.7 ns and an insulation voltage rating of 5700 Vrms. It utilizes capacitive coupling for signal isolation and is housed in a 16-pin SOIC (DW) package. The component functions unidirectionally with two forward channels and no reverse channels, operating reliably across a temperature range of -55°C to +125°C.

Feature Summary

• Provides reinforced electrical isolation using capacitive coupling technology
• Supports high-speed digital signal transmission at rates up to 100 Mb/s
• Offers bidirectional compatibility through dual independent forward channels

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety isolation
• Power metering circuits for high-voltage monitoring
• Inverter drives and motor control applications

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and tape/reel specifications. Ensure compliance with RoHS directives and check moisture sensitivity levels before storage. Confirm that the ordering part number matches the required isolation ratings and channel configuration for your design.

Selection Notes

Select this component when reinforced isolation ratings are mandatory for safety standards. Compare power consumption and propagation delay against other ISO78xx variants if lower current or higher speed is needed. Ensure the SOIC-16 footprint fits the PCB layout constraints and thermal requirements of the target application environment.

Part Context

This device belongs to the ISO78xx family of digital isolators from Texas Instruments. It shares the same core isolation architecture as single-channel (ISO7810) and quad-channel (ISO7840) variants. The DW suffix indicates a standard SOIC-16 plastic package designed for surface-mount assembly.

Replacement Considerations

Direct substitutes include ISO7820DWR for identical functionality in tape-and-reel packaging. For quad-channel needs, consider ISO7840DW. Single-channel requirements may be met by ISO7810DW.