ISO7140CCDBQR

Overview

The ISO7140CCDBQR is a quad-channel digital isolator from Texas Instruments, housed in a 16-pin SSOP package. It features four unidirectional channels with a data rate of 50 Mb/s and an insulation voltage of 2500 Vrms using capacitive coupling. The device operates on a supply voltage between 2.7 V and 5 V, drawing 14 mA of quiescent current. Propagation delay is typically 23 ns. It functions within a temperature range of -40°C to +125°C and includes integrated noise filters for signal integrity.

Feature Summary

• Integrates four independent unidirectional communication channels for isolated data transmission.
• Utilizes capacitive coupling technology to provide high-voltage isolation barriers.
• Incorporates built-in noise filtering mechanisms to enhance signal reliability in noisy environments.

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing safe patient isolation
• Power metering circuits for energy monitoring

Procurement Notes

Verify the specific suffix 'DBQR' confirms the reel packaging format when ordering. Ensure the design supports the 16-SSOP footprint dimensions. Confirm that the 2500 Vrms isolation rating meets the safety requirements of the target application environment.

Selection Notes

Select this component for designs requiring four isolated digital paths with low power consumption. It is suitable for applications where space constraints favor the small-footprint SSOP package. Consider the 50 Mb/s speed limit when evaluating high-speed data interface needs.

Part Context

This part belongs to the ISO7140CC family of small-footprint, low-power digital isolators. It serves as a robust alternative to optocouplers in modern electronic designs, offering higher reliability and lower power dissipation while maintaining compact physical dimensions for dense circuit board layouts.

Replacement Considerations

Check datasheets for cross-reference parts like the ISO7141CCDBQR, which offers mixed directional channels. Verify pinout compatibility and isolation voltage ratings before substituting any other quad-channel isolator.