ISO7342FCDW

Overview

The ISO7342FCDW is a low-power quad-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It provides galvanic isolation with a 3000 Vrms insulation voltage and supports data rates up to 25 Mbps. The device operates on a supply voltage between 3 V and 5.5 V, drawing a typical operating current of 6.4 mA. It features unidirectional signal paths with a propagation delay of 31 ns and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides robust electromagnetic compatibility for reliable signal transmission in noisy environments
• Offers low power consumption suitable for energy-efficient system designs
• Delivers high common-mode transient immunity to maintain signal integrity across isolation barriers

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing safe patient isolation circuits
• Power metering applications utilizing isolated data acquisition

Procurement Notes

Verify the specific suffix (DW) confirms the tube packaging format rather than tape-and-reel configuration. Ensure the component meets RoHS compliance requirements for your region. Confirm that the 16-SOIC footprint matches your PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when four independent unidirectional channels are required within a single package. It is appropriate for designs prioritizing low power consumption alongside moderate data throughput. Consider the 16-SOIC package size if space efficiency is secondary to standard pin spacing requirements.

Part Context

This part belongs to the ISO7342FC series of digital isolators manufactured by Texas Instruments. It is categorized under interface ICs and serves as a solution for breaking ground loops in electronic circuits. The device utilizes capacitive coupling technology to achieve electrical isolation between input and output sides.

Replacement Considerations

Check for ISO7342FCDWR if tape-and-reel packaging is preferred over tubes. Verify functional equivalence with other quad-channel isolators from different manufacturers only if pinout and specifications match exactly.