ADUM1200WURZ55

Overview

The ADUM1200WURZ55 is a dual-channel digital isolator from Analog Devices Inc., utilizing iCoupler magnetic coupling technology. It features 2/0 directionality with two transmit channels and no receive channels. The device operates on a single supply voltage ranging from 2.7V to 5.5V and supports data rates up to 25Mbps. It provides 2500Vrms isolation voltage and a minimum common-mode transient immunity of 25kV/µs. Packaged in an 8-SOIC (0.154 inch width) surface-mount package, it is qualified under AEC-Q100 for automotive applications and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates high-speed CMOS logic with monolithic transformer technology for robust signal transmission across isolation barriers.
• Provides bidirectional data isolation with unidirectional channel configuration (2Tx/0Rx) for specific interface requirements.
• Offers superior common-mode transient immunity compared to traditional optical couplers, ensuring reliable operation in noisy environments.

Applications

• Automotive electronic control units requiring certified isolation components
• Industrial communication interfaces such as RS-485 and CAN bus systems
• Medical equipment needing galvanic isolation for safety compliance

Procurement Notes

Verify the exact suffix designation during procurement, as variations like WURZ53 or WURZ may indicate different packaging or qualification statuses. Confirm current availability status, as some variants are marked as obsolete or limited supply. Ensure the selected part matches the required AEC-Q100 automotive grade if intended for vehicle applications. Cross-reference datasheet revisions to confirm pinout and electrical specifications remain consistent with system design requirements.

Selection Notes

Select this component when a dual-channel unidirectional isolator is required for cost-effective signal separation. Consider the 25Mbps data rate limit for high-speed digital lines. Evaluate the 8-SOIC package constraints against PCB layout space. Verify that the 2500Vrms isolation rating meets the specific safety standards of the target application environment.

Part Context

This device belongs to the ADuM1200 series of digital isolators based on Analog Devices' proprietary iCoupler technology. The series combines silicon chip transformers with CMOS process technology to replace bulky optical isolators. The WURZ55 suffix typically denotes a specific tape-and-reel or tube packaging variant within the broader ADUM1200 product family.

Replacement Considerations

Public confirmed substitute part numbers include ADUM1200WURZ and ADUM1200WURZ-RL7. These equivalents offer parameter-matching performance for direct replacement in existing designs without requiring circuit modifications.

FAQ

What is the maximum data rate supported by the ADUM1200WURZ55?

The device supports a maximum data rate of 25Mbps per channel.

Is the ADUM1200WURZ55 suitable for automotive applications?

Yes, the component is AEC-Q100 qualified, making it suitable for automotive electronic control units and other vehicle-grade applications.