ADUM3401CRWZ

Overview

The ADUM3401CRWZ is a quad-channel digital isolator utilizing Analog Devices iCoupler magnetic coupling technology. It operates within a supply voltage range of 2.7 V to 5.5 V and supports data rates up to 90 Mb/s. The device provides an isolation voltage of 2500 Vrms with a common-mode transient immunity of 25 kV/µs. Propagation delay is typically 32 ns, with rise and fall times of approximately 3 ns. It functions in temperatures from -40°C to +105°C and is housed in a 16-lead SOIC package.

Feature Summary

• Integrates four independent bidirectional channels using on-chip coil-based magnetic coupling for signal transmission.
• Provides high-speed data isolation with low propagation delay and minimal pulse width distortion.
• Delivers robust system-level ESD protection and high common-mode transient immunity without requiring isolated power supplies.

Applications

• Industrial communication interfaces such as RS-485 and CAN bus systems
• Medical equipment requiring galvanic isolation for patient safety
• Power management circuits involving DC/DC converter feedback loops

Procurement Notes

Verify the specific suffix against official documentation to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with existing PCB footprints and thermal management requirements. Confirm RoHS compliance status through current manufacturer declarations before finalizing procurement orders.

Selection Notes

Select this component when bidirectional data flow is required across all four channels. It is suitable for applications needing moderate data rates up to 90 Mbps. Consider alternative models if higher isolation voltages or unidirectional-only configurations are necessary for the specific design constraints.

Part Context

This part belongs to the ADuM340x series of quad-channel digital isolators. These devices replace traditional optocouplers by integrating CMOS technology with micro-transformers. The series offers improved performance metrics including lower power consumption and smaller physical footprint compared to legacy isolation solutions.

Replacement Considerations

The ADUM3400CRWZ serves as a functional substitute but features unidirectional channels only. Verify channel directionality requirements before swapping components. Other variants in the ADuM34xx family may offer different speed ratings or isolation levels.