ADUM1401WSRWZ33

Overview

The ADUM1401WSRWZ-RL is a quad-channel digital isolator utilizing iCoupler technology, combining high-speed CMOS with monolithic air-core transformers. It operates on a single supply voltage ranging from 2.7 V to 5.5 V and supports data rates up to 90 Mbps. The device provides 2500 Vrms isolation voltage and features unidirectional channel configurations (3 Tx, 1 Rx). Key electrical parameters include a maximum propagation delay of 100 ns, typical rise/fall times of 2.5 ns, and a minimum common-mode transient immunity of 25 kV/µs. It is housed in a 16-lead SOIC package and qualified for automotive applications under AEC-Q100 standards.

Feature Summary

• Integrates four independent digital channels using magnetic coupling technology to eliminate the need for external discrete components.
• Provides robust signal integrity with high common-mode transient immunity exceeding 25 kV/µs across all channels.
• Supports bidirectional communication logic through integrated level translation capabilities between 3 V and 5 V domains.
• Delivers precise timing characteristics with minimal pulse width distortion and tight channel-to-channel matching.

Applications

• Isolation for SPI interfaces and data converters
• RS-232, RS-422, and RS-485 transceiver isolation
• Industrial field bus isolation systems
• Automotive electronic control units

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm packaging configuration and reel specifications. Ensure the component meets required automotive qualification standards if deployed in vehicle systems. Cross-reference the manufacturer part number with authorized distributor catalogs to validate current production status and compliance certifications prior to procurement.

Selection Notes

Select this component when designing circuits requiring high-density digital isolation with low power consumption. The 16-lead SOIC package facilitates surface-mount assembly in space-constrained layouts. Consider the 90 Mbps data rate capability for high-speed serial communications. Verify that the unidirectional channel configuration aligns with the specific transmit and receive requirements of the target interface architecture.

Part Context

This device belongs to the ADuM1400/ADuM1401/ADuM1402 family of quad-channel digital isolators. These parts share the same core iCoupler technology but differ in channel directionality and pinout configurations. The ADUM1401 variant specifically offers a mixed directional setup suitable for asymmetric data transfer applications within industrial and automotive environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.