ISO7310CD

Overview

The ISO7310CD is a single-channel digital isolator from Texas Instruments, designed for robust electromagnetic compatibility and low power consumption. It utilizes capacitive coupling technology to provide electrical isolation between circuits. The device operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 25 Mb/s. Key electrical specifications include an insulation voltage of 3000 Vrms and a common-mode transient immunity of 25 kV/µs. The propagation delay is typically 32 ns with a maximum of 58 ns. It functions in unidirectional mode with a 1/0 input/output configuration. The component is housed in an 8-SOIC package (0.154 inch width) and is rated for operation across a temperature range of -40°C to +125°C.

Feature Summary

• Capacitive coupling architecture ensures high reliability and long-term stability without optical degradation.
• High common-mode transient immunity of 25 kV/µs provides robust protection against noise spikes.
• Low power consumption design reduces overall system energy requirements.
• Integrated on-chip filtering minimizes the need for external components.

Applications

• Industrial automation control systems
• Power metering and smart grid infrastructure
• Medical equipment signal isolation
• Automotive electronic control units

Procurement Notes

Verify the ordering suffix 'CD' corresponds to the tube packaging format rather than tape-and-reel. Confirm that the specific revision level matches the required application standards. Ensure the procurement channel is authorized to guarantee genuine Texas Instruments products. Check for moisture sensitivity labeling as the device is humidity-sensitive. Validate that the 8-SOIC footprint aligns with the target PCB layout constraints.

Selection Notes

Select the ISO7310CD when a single-channel solution with high-speed data transmission is required. Consider this part for applications demanding high common-mode transient immunity in noisy environments. Choose this model if the design requires a wide operating temperature range suitable for industrial settings. Evaluate the 3000 Vrms isolation barrier for safety compliance needs. Compare power consumption metrics against other single-channel options to optimize system efficiency.

Part Context

The ISO7310CD belongs to the ISO7310C family of digital isolators, which are engineered for general-purpose isolation tasks. This series emphasizes robustness against electromagnetic interference while maintaining low power profiles. The component serves as a critical interface between isolated domains in complex electronic systems. It complements other devices in the Texas Instruments isolation portfolio by offering a cost-effective single-channel alternative.

Replacement Considerations

The ISO7310CDR is the reel-based variant of the same functional device, differing only in packaging. Designers requiring tape-and-reel handling should consider this substitute. Other single-channel isolators may require circuit modifications due to pinout or parameter differences.

FAQ

What is the maximum data rate supported by the ISO7310CD?

The device supports a maximum data rate of 25 Mb/s.

Does the ISO7310CD support bidirectional communication?

No, it is configured for unidirectional data transmission only.

What is the typical propagation delay for this isolator?

The typical propagation delay is 32 ns.