ISO7820LLDWWR

Overview

The ISO7820LLDWWR is a dual-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC (DWW) package. It features a 2/0 channel configuration with unidirectional data flow and supports data rates up to 100 Mbps. The device utilizes capacitive coupling for isolation, providing an insulation voltage of 5700 Vrms. It operates within a supply voltage range of 2.25 V to 5.5 V, drawing a typical operating current of 14.2 mA. Key electrical parameters include a propagation delay of 17 ns and a wide operating temperature range from -55°C to +125°C.

Feature Summary

• Provides reinforced isolation between high-voltage and low-voltage domains using capacitive coupling technology.
• Supports high-speed data transmission with a maximum rate of 100 Mbps for reliable signal integrity.
• Features a compact 16-pin SOIC surface-mount package suitable for space-constrained designs.

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing enhanced safety isolation
• Power metering applications with high-voltage interfaces

Procurement Notes

Verify the specific suffix 'W' indicates reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation. Ensure the SOIC-16 footprint matches your PCB layout requirements. Check for any recent lifecycle notices or obsolescence warnings directly from Texas Instruments before finalizing procurement plans.

Selection Notes

Select this component for applications requiring a 2/0 channel configuration with unidirectional signaling. It is suitable where 100 Mbps speed and 5700 Vrms isolation are sufficient. Consider the 14.2 mA supply current for power budget calculations. Compare against ISO7821 variants if bidirectional channels or higher data rates are needed instead.

Part Context

This part belongs to the ISO7820LL series of high-performance digital isolators. It is designed to replace optocouplers in modern systems, offering superior speed and lower power consumption. The device integrates LVDS buffer functionality within the isolated barrier, enhancing signal quality in noisy environments.

Replacement Considerations

ISO7820LLDWW is the tube-packaged equivalent of this reel-part. For bidirectional 1/1 channel requirements, consider the ISO7821LLDWWR. Higher speed options like the ISO7821LLSDWWR offer 150 Mbps but may require different thermal management.