ADUM1401WTRWZ35

Overview

The ADUM1401WTRWZ35 is a quad-channel digital isolator utilizing iCoupler technology, combining high-speed CMOS with monolithic air-core transformer capabilities. It provides bidirectional communication and 3V/5V level translation within a 16-lead SOIC wide body package. The device supports data rates up to 90 Mbps (NRZ) with precise timing characteristics, including a maximum pulse width distortion of 2 ns and channel-to-channel matching of 2 ns. It offers high common-mode transient immunity exceeding 25 kV/µs and operates over an extended temperature range from -40°C to +125°C.

Feature Summary

• Integrates four independent isolation channels using magnetic coupling technology for superior performance compared to optocouplers
• Supports bidirectional communication with automatic 3V to 5V or 5V to 3V level translation capabilities
• Features an output enable function for power management and system control flexibility
• Qualified for automotive applications meeting AEC-Q100 standards

Applications

• General-purpose multichannel isolation in industrial systems
• SPI interface and data converter isolation
• RS-232, RS-422, and RS-485 transceiver isolation
• Industrial field bus isolation networks
• Automotive electronic systems requiring certified isolation

Procurement Notes

Verify the specific suffix '35' against the manufacturer's official documentation to confirm packaging configuration and moisture sensitivity level details. Ensure the component matches the required automotive qualification status if applicable to your design. Cross-reference the 16-lead SOIC wide body package dimensions with your PCB footprint specifications. Confirm that the bidirectional channel configuration aligns with your signal flow requirements before finalizing procurement.

Selection Notes

Select this component when high-speed data transmission up to 90 Mbps is required alongside robust galvanic isolation. The 2500 Vrms isolation voltage and >25 kV/µs CMTI make it suitable for noisy environments. Consider the power consumption profiles at different data rates; current draw varies significantly between low-speed and high-speed operation. The automotive qualification makes it appropriate for vehicles, while the wide operating temperature range supports harsh industrial conditions.

Part Context

This part belongs to the ADuM140x series of quad-channel digital isolators from Analog Devices. The series leverages iCoupler technology to replace traditional optocouplers, offering smaller size, lower power, and higher reliability. The ADUM1401 variant specifically provides four unidirectional channels, distinguishing it from other series members that may offer bidirectional or mixed configurations.

Replacement Considerations

The ADUM1400WTRWZ serves as a parameter-equivalent alternative within the same family, differing primarily in channel directionality. Verify compatibility regarding the specific signal path requirements, as the ADUM1400 may offer bidirectional options not present in the ADUM1401.