ISO7320CD

Overview

The ISO7320CD is a dual-channel digital isolator from Texas Instruments, housed in an SOIC-8 package. It supports unidirectional data transmission at a signaling rate of 25 Mbps with a typical propagation delay of 32 ns. The device operates on a supply voltage between 3 V and 5.5 V, drawing a typical operating current of 4.9 mA. It provides 3000 Vrms isolation via capacitive coupling and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Robust electromagnetic compatibility performance for harsh environments
• Integrated input noise filtering capabilities
• Low power consumption design

Applications

• Industrial automation systems requiring secure data exchange
• Medical equipment needing galvanic isolation
• Power metering applications

Procurement Notes

Verify the specific suffix (e.g., CD vs CDR) to confirm the packaging type, as the base model number may refer to tube packaging while other suffixes indicate reel or cut tape options. Ensure the required isolation voltage rating and channel configuration match the application needs before ordering. Confirm availability through authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when high-speed unidirectional isolation is required alongside low power consumption. The integrated noise filter makes it suitable for noisy industrial environments. Consider the SOIC-8 footprint for space-constrained designs. Verify that the 3000 Vrms isolation rating meets the safety standards of the target application.

Part Context

This part belongs to the ISO732x family of robust EMC, low-power, dual-channel digital isolators. These devices are designed to provide reliable signal transmission across isolation barriers while maintaining low power usage. The family includes variants with different packaging and temperature ratings to suit various industrial and commercial requirements.

Replacement Considerations

Check for ISO7320CDR if reel packaging is preferred over tubes. Verify compatibility with ISO7320C series variants for similar electrical characteristics but different packaging.