ADUM1401CRWZ

Overview

The ADUM1401CRWZ is a quad-channel digital isolator utilizing iCoupler technology, integrating high-speed CMOS logic with single-chip air-core transformer capabilities. It operates within a supply voltage range of 2.7 V to 5.5 V and supports data rates up to 120 Mb/s. The device provides 2500 Vrms isolation voltage via magnetic coupling and exhibits a typical propagation delay of 27 ns with rise and fall times of 3 ns. It functions in unidirectional mode across an operating temperature range of -40°C to +105°C, housed in a 16-lead SOIC package.

Feature Summary

• Integrates four independent digital channels using iCoupler magnetic coupling technology for signal transmission without optical components.
• Provides robust galvanic isolation with a rated insulation voltage of 2500 Vrms to protect sensitive circuitry from high-voltage transients.
• Supports high-speed data communication with a maximum data rate of 120 Mb/s and low propagation delay characteristics.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing reliable patient isolation barriers
• Power electronics monitoring circuits demanding high common-mode transient immunity

Procurement Notes

Verify the specific suffix (e.g., CRWZ) against official Analog Devices documentation to confirm package type and tape/reel specifications. Confirm current availability status as distribution channels may indicate limited stock or discontinuation. Ensure compliance with RoHS directives by checking the manufacturer's latest certification documents before finalizing procurement orders.

Selection Notes

Select this component when four isolated bidirectional channels are required within a compact surface-mount footprint. Consider the 2500 Vrms isolation rating and 120 Mb/s speed for applications exceeding standard optocoupler performance limits. Evaluate the 2.7 V to 5.5 V supply range compatibility with existing system power rails and verify thermal requirements for the SOIC-16 package under maximum load conditions.

Part Context

This part belongs to the ADuM140x series of quad-channel digital isolators from Analog Devices. These devices replace traditional optocouplers by offering superior performance in terms of speed, power consumption, and reliability. The series leverages silicon dioxide-based isolation layers and on-chip transformers to achieve high common-mode transient immunity.

FAQ

What is the common-mode transient immunity (CMTI) specification?

The datasheet specifies a CMTI of 25 kV/µs for the ADUM1401CRWZ.

Does the device support bidirectional data flow?

Yes, the ADUM1401CRWZ supports unidirectional data transmission across its four isolated channels.