ADUM3401ARWZ-RL

Overview

The ADUM3401ARWZ-RL is a quad-channel digital isolator utilizing iCoupler magnetic coupling technology. It provides 2500Vrms isolation voltage with a data rate of 1Mbps and 25kV/µs common-mode transient immunity (CMTI). The device operates on a single supply voltage ranging from 2.7V to 5.5V, featuring bidirectional channels within a 16-lead SOIC wide package. It supports a logic signal frequency up to 45MHz and functions across an operating temperature range of -40°C to +105°C.

Feature Summary

• Integrates four independent digital isolation channels using proprietary iCoupler magnetic coupling technology for high reliability.
• Provides robust protection against high-speed noise transients with a minimum common-mode transient immunity of 25kV/µs.
• Supports bidirectional data transmission across the isolation barrier, simplifying circuit design for complex interfaces.
• Operates reliably over an extended industrial temperature range without requiring external isolation components.

Applications

• Industrial automation systems requiring galvanic isolation between microcontrollers and field devices
• Medical equipment interfaces needing certified safety isolation barriers
• Power electronics control circuits where high-voltage noise immunity is critical

Procurement Notes

Verify the specific suffix 'ARWZ-RL' matches the required package width and tape-and-reel quantity. Confirm that the 1Mbps data rate meets system timing requirements compared to higher-speed variants like the ADUM340E series. Ensure the 2500Vrms isolation rating satisfies the application's safety standards. Check current availability status as distribution may vary by region.

Selection Notes

Select this component when bidirectional communication is necessary across the isolation barrier. The 1Mbps speed is suitable for standard serial protocols but may be insufficient for high-frequency applications requiring the ADUM340E series. Verify that the 2.7V to 5.5V supply range aligns with the target system voltage levels. Consider the 16-SOIC package dimensions for PCB layout constraints.

Part Context

This part belongs to the ADuM340x family of quad-channel digital isolators from Analog Devices. These devices replace traditional optocouplers by integrating transformer-based isolation on-chip. The ADUM3401 variant specifically offers bidirectional channel configuration, distinguishing it from unidirectional models in the same series.

Replacement Considerations

The ADUM3400ARWZ-RL serves as a direct substitute if unidirectional channels are acceptable. For higher performance needs, the ADUM340E1BRWZ-RL offers increased speed and CMTI but requires verification of pin compatibility and supply voltage ranges.