ISO7140CCDBQ

Overview

The ISO7140CCDBQ is a quad-channel digital isolator from Texas Instruments, housed in a 16-lead SSOP package. It operates on a supply voltage range of 2.7 V to 5 V with a maximum data rate of 50 Mb/s. The device provides an isolation voltage of 3000 Vrms and supports a common-mode transient immunity of 25 kV/µs. It functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates four independent digital channels for signal isolation
• Incorporates internal noise filtering to suppress high-frequency spikes
• Utilizes capacitive coupling technology for galvanic isolation

Applications

• Industrial automation control systems
• Medical equipment signal interfaces
• Power electronics gate drive circuits

Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm pinout and functional configuration. Ensure the selected variant matches the required isolation voltage rating and channel directionality for the target application design.

Selection Notes

Select this component when a compact solution for multi-channel isolation is required. Consider the low power consumption and small footprint benefits for space-constrained designs. Validate that the operating voltage and thermal requirements align with the system specifications.

Part Context

This part belongs to the ISO714x family of digital isolators designed for robust performance in noisy environments. It serves as a replacement for traditional optocouplers, offering higher speed and reliability while maintaining electrical safety standards.

Replacement Considerations

Consult official substitution guides for compatible alternatives such as the ISO7141 series or other TI isolators with matching channel counts and isolation ratings.