ADUM3211TRZ

Overview

The ADUM3211TRZ is a dual-channel digital isolator from Analog Devices, utilizing iCoupler technology to integrate high-speed CMOS with monolithic transformer capabilities. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 10 Mb/s. Key electrical specifications include a propagation delay of 50 ns, typical rise and fall times of 3 ns, and an operating supply current of 6.4 mA. The device provides 2500 Vrms isolation via magnetic coupling and functions reliably across a temperature range of -40°C to +105°C.

Feature Summary

• Integrates high-speed CMOS logic with monolithic transformer technology for robust signal transmission.
• Provides enhanced system-level ESD reliability compared to traditional optocoupler alternatives.
• Features unidirectional signal paths optimized for standard digital interface applications.

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reliable signal separation
• General-purpose digital interface circuits

Procurement Notes

Verify the specific suffix (TRZ) against official Analog Devices documentation to confirm the SOIC-8 tube packaging configuration. Ensure compatibility with the required 3 V to 5.5 V supply rails and 10 Mb/s data rate limits before integration. Cross-reference the manufacturer part number with authorized distributors to confirm current availability status and RoHS compliance details.

Selection Notes

Select this component when designing circuits that require bidirectional or unidirectional isolation between microcontrollers and peripheral devices. It serves as a direct replacement for optocouplers in applications demanding higher speed and lower power consumption. Consider the 8-pin SOIC package constraints and the 50 ns propagation delay when timing-critical performance is necessary for the target system architecture.

Part Context

This device belongs to the ADuM3210/ADuM3211 series of dual-channel digital isolators. These components are designed to replace legacy optocouplers by offering superior performance characteristics through proprietary iCoupler technology. The series emphasizes compact size, low power usage, and high common-mode transient immunity for modern electronic designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify functional equivalence with other iCoupler-based isolators from Analog Devices if alternative sourcing is required.

FAQ

What isolation technology does the ADUM3211TRZ utilize?

It uses Analog Devices' iCoupler technology, which combines high-speed CMOS with monolithic transformer technology.

Is the signal directionality unidirectional or bidirectional?

The ADUM3211TRZ features unidirectional signal channels.