ADUM1401WTRWZ-RL

Overview

The ADUM1401WTRWZ-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 data rates up to 90 Mb/s. The device features a unidirectional channel configuration of three transmitters and one receiver (3Tx/1Rx). Key electrical specifications include an isolation voltage of 2500 Vrms, a propagation delay of 34 ns, and power consumption of 31 mA on the transmitter side and 57 mA on the receiver side. It is housed in a 16-pin SOIC package and is qualified under AEC-Q100 standards for automotive applications.

Feature Summary

• Implements iCoupler magnetic coupling technology for robust signal isolation without external magnetics.
• Provides high common-mode transient immunity to protect against noise in electrically noisy environments.
• Features integrated logic and thermal functionality to ensure reliable data transmission across isolation barriers.

Applications

• Automotive systems requiring AEC-Q100 qualified components
• Industrial communication interfaces such as RS-485 and CAN bus
• Medical equipment with strict isolation requirements

Procurement Notes

Verify the specific suffix WTRWZ-RL to confirm the reel packaging and unidirectional channel configuration. Ensure compatibility with the target PCB footprint for the 16-SOIC package. Confirm that the 2500 Vrms isolation rating meets the safety standards of the end application. Check current availability status as distribution may vary by region.

Selection Notes

Select this component when a unidirectional data path is required for one channel while maintaining bidirectional or additional unidirectional paths for others. Compare power consumption figures against system budget constraints, noting the difference between TX and RX sides. Verify that the 90 Mb/s data rate aligns with the communication protocol speed requirements.

Part Context

This part belongs to the ADUM1401 series of quad-channel digital isolators. It shares the same physical package and core isolation technology as other variants in the family but differs in channel directionality and specific electrical characteristics. It serves as a solution for replacing traditional optocouplers in space-constrained designs.

Replacement Considerations

Check for direct pin-compatible substitutes within the ADUM1401 series that offer different channel configurations, such as bidirectional variants. Verify if newer generation isolators from Analog Devices provide improved performance metrics while maintaining package compatibility.