ADUM1285WBRZ

Overview

The ADUM1285WBRZ is a dual-channel digital isolator from Analog Devices, utilizing iCoupler technology for magnetic coupling isolation. It operates within a supply voltage range of 3.135 V to 5.5 V and supports data rates up to 25 Mb/s. The device provides 3000 Vrms insulation voltage and offers a common-mode transient immunity of 25 kV/µs. Typical propagation delay is 24 ns with rise and fall times of approximately 3 ns. It functions in an ambient temperature range from -40°C to +125°C and is housed in an 8-lead SOIC package.

Feature Summary

• Integrates two independent signal channels using monolithic air core transformer technology for galvanic isolation.
• Provides high common-mode transient immunity to prevent false triggering in noisy environments.
• Supports bidirectional signal transmission with default low output configuration options.

Applications

• Industrial communication bus isolation
• Medical equipment signal isolation
• Power metering systems

Procurement Notes

Verify the specific suffix 'WBRZ' to confirm the wide operating temperature range and SOIC-8 packaging variant. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor declarations before integration into regulated designs.

Selection Notes

Select this component when dual-channel isolation with moderate speed requirements is needed. Ensure the 25 Mb/s data rate meets system timing constraints. Verify that the 3000 Vrms isolation rating satisfies safety standards for the specific application environment.

Part Context

This part belongs to the ADUM1285 series of small form-factor digital isolators. It shares architectural similarities with other iCoupler devices but is distinct in its channel count and speed specifications compared to single-channel or higher-speed variants in the same family.

Replacement Considerations

Cross-reference with ADUM1285BRZ for tube-packaged equivalents. Check ADUM1285WCRZ-RL7 for reel-packaged versions with identical electrical characteristics but different shipping configurations.