ADUM3211WBRZ

Overview

The ADUM3211WBRZ is a dual-channel digital isolator utilizing magnetic coupling technology. It provides bidirectional data transmission with a maximum data rate of 10 Mbps and a minimum common-mode transient immunity of 25 kV/µs. The device operates within a supply voltage range of 3 V to 5.5 V and features propagation delays of 50 ns (maximum) for both low-to-high and high-to-low transitions. Typical rise and fall times are 2.5 ns. It offers an isolation voltage of 2500 Vrms and functions across an extended temperature range from -40°C to +125°C, housed in an 8-SOIC package.

Feature Summary

• Utilizes iCoupler magnetic coupling technology for robust signal isolation without optocoupler limitations
• Provides enhanced common-mode transient immunity of 25 kV/µs for reliable operation in noisy environments
• Supports bidirectional data communication across two independent channels
• Certified for automotive applications under AEC-Q100 standards

Applications

• Automotive electronic control units requiring isolated communication interfaces
• Industrial automation systems needing galvanic isolation between microcontrollers and sensors
• Medical equipment requiring safe patient isolation circuits
• Power electronics gate drive circuits for motor control

Procurement Notes

Verify the specific suffix WBRZ corresponds to the tube packaging format when ordering. Confirm that the component meets AEC-Q100 qualification requirements if intended for automotive use. Ensure the design accommodates the 8-SOIC footprint dimensions and thermal characteristics specified in the datasheet. Cross-reference the manufacturer part number against official Analog Devices documentation to avoid counterfeit components.

Selection Notes

Select this component when bidirectional data transfer is required at speeds up to 10 Mbps. Choose this model over unidirectional variants if signal flow must be reversible on both channels. Consider the 2500 Vrms isolation rating for applications demanding basic or reinforced insulation levels. Evaluate the 50 ns propagation delay against system timing constraints to ensure adequate signal integrity margins.

Part Context

This device belongs to the ADuM321x series of digital isolators from Analog Devices. It represents a generation of isolators leveraging proprietary silicon-on-insulator processes. The series includes related models such as the ADUM3201 and ADUM3211N0, which may offer different isolation voltages or data rates. The ADUM3211WBRZ specifically denotes the standard commercial/automotive grade variant in tube packaging.

Replacement Considerations

ADUM1201WTRZ is listed as a parameter-equivalent substitute by distributors.