ISO7761DWR

Overview

The ISO7761DWR is a six-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It features five unidirectional channels on the input side and one bidirectional channel on the output side. The device supports data rates up to 100 Mb/s with a typical propagation delay of 11 ns. It operates within a supply voltage range of 2.25 V to 5.5 V and provides an isolation voltage of 5000 Vrms. The component exhibits a common-mode transient immunity of 85 kV/µs and functions across a temperature range of -55°C to +125°C.

Feature Summary

• Six-channel configuration with five forward and one reverse channel for versatile signal routing
• High common-mode transient immunity of 85 kV/µs for robust noise rejection
• Capacitive coupling technology enabling reliable high-speed data transmission
• Reinforced insulation rating suitable for safety-critical applications

Applications

• Industrial automation systems requiring multi-channel galvanic isolation
• Medical equipment needing reinforced isolation barriers
• Power metering circuits with multiple isolated communication lines
• Inverters and motor drives utilizing high-speed digital interfaces

Procurement Notes

Verify the specific suffix 'DWR' confirms the SOIC-16 package and tape-and-reel packaging format. Ensure the order matches the required channel configuration of 5/1. Confirm RoHS compliance status through official manufacturer documentation before procurement. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Selection Notes

Select this component when a six-channel isolator is required with asymmetric channel distribution. The 5/1 split suits designs needing multiple inputs and a single return path. Consider the 100 Mb/s speed limit and 11 ns delay for timing-sensitive applications. Evaluate the 5000 Vrms isolation level against system safety requirements.

Part Context

This part belongs to the ISO776x family of general-purpose digital isolators. It shares the same core capacitive coupling technology as other members but differs in channel count and polarity. The DWR suffix specifically denotes the wide-body SOIC-16 package optimized for higher creepage distances compared to smaller packages.

Replacement Considerations

ISO7761DR: Identical electrical specifications but in a smaller SOIC-16 package without the wide-body creepage advantages. ISO7761DW: Same wide-body package but typically supplied in cut-tape or tube rather than reel.