ISO1640DWR

Overview

The ISO1640DWR is a digital isolator from Texas Instruments featuring two bidirectional channels in a 16-pin SOIC package. It supports I2C communication with a data rate of 50 Mb/s and offers an insulation voltage of 5000 Vrms. The device operates on a supply voltage between 2.25 V and 5.5 V, with typical power consumption of 2.7 mA and 5.3 mA per channel. It exhibits a propagation delay of 80 ns and pulse width distortion of 60 ns. Operating temperatures range from -40°C to +125°C.

Feature Summary

• Supports hot-swappable bidirectional I2C communication
• Provides robust electromagnetic compatibility performance
• Integrates logic for bidirectional channel operation

Applications

• I2C bus isolation
• Hot-swappable system interfaces
• Bidirectional clock and data line separation

Procurement Notes

Verify the specific suffix DWR indicates the SOIC-16 tape and reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation. Ensure the component matches the exact part number to guarantee correct pinout and electrical characteristics for I2C applications.

Selection Notes

Select this component for designs requiring bidirectional signal isolation on I2C buses. It is suitable for systems needing hot-swap capability with strong EMC resistance. Consider the 5000 Vrms insulation rating for safety requirements. Evaluate the 80 ns propagation delay against system timing constraints.

Part Context

This device belongs to the ISO164x series of digital isolators designed specifically for I2C applications. Unlike standard isolators, it integrates the necessary logic to handle bidirectional signals without external control. The series distinguishes itself by supporting hot-swappable environments while maintaining signal integrity.

Replacement Considerations

ISO1642DWR provides four bidirectional channels with higher insulation voltage.