ADUM3401BRWZ-RL

Overview

The ADUM3401BRWZ-RL is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It operates within a supply voltage range of 2.7 V to 5.5 V and supports bidirectional data transmission at rates up to 10 Mb/s. The device provides an isolation voltage of 2500 Vrms with a typical propagation delay of 50 ns. It features low power consumption, drawing 4.4 mA on the primary side and 7.4 mA on the secondary side. The component is housed in a 16-lead SOIC package and is rated for operation between -40°C and +105°C.

Feature Summary

• Integrates four independent digital isolation channels using proprietary iCoupler magnetic coupling technology for robust signal transmission.
• Supports bidirectional data flow across all channels, enabling flexible configuration for complex system interfaces.
• Delivers high common-mode transient immunity to maintain signal integrity in electrically noisy environments.

Applications

• Industrial automation systems requiring galvanic isolation between control logic and field devices
• Medical equipment needing safe separation between patient-connected circuits and processing units
• Power electronics interfaces for monitoring and control in motor drives and inverters

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and reel specifications. Ensure compatibility with existing PCB footprints and thermal management requirements. Confirm that the bidirectional channel configuration meets the design's signal direction needs. Validate operating temperature ranges against environmental conditions. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Choose this component when bidirectional communication is required across four isolated channels. It is suitable for designs needing moderate data rates up to 10 Mb/s with standard isolation ratings. Consider alternatives if higher speed or unidirectional-only functionality is sufficient. Evaluate power budget constraints as the device draws current on both sides of the isolation barrier. Ensure the SOIC-16 package fits the available board space.

Part Context

This part belongs to the ADuM340x family of quad-channel digital isolators. It shares the same core iCoupler architecture with variants like ADUM3400 and ADUM3402, differing primarily in channel directionality. The family is designed to replace traditional transformer and optocoupler solutions in modern interface applications.

Replacement Considerations

Direct substitutes include ADUM3400BRWZ-RL (unidirectional) and ADUM3402BRWZ-RL (mixed directionality). Verify pinout compatibility and electrical parameters before swapping. Non-direct replacements may require schematic redesign due to different channel configurations.