ADUM251N0BRIZ

Overview

The ADUM251N0BRIZ is a robust 5-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features a unidirectional channel configuration with four forward channels and one reverse channel. The device operates within a supply voltage range of 1.7 V to 5.5 V and supports data rates up to 150 Mb/s. Key electrical parameters include an insulation voltage of 5000 Vrms, a common mode transient immunity of 75 kV/µs, and a propagation delay of 7.2 ns. It is housed in a 16-lead SOIC package and functions across a temperature range of -40°C to +125°C.

Feature Summary

• Provides galvanic isolation for five independent digital signal channels using proprietary magnetic coupling technology.
• Ensures high noise immunity against fast-rising voltage transients through specified common mode transient immunity ratings.
• Supports bidirectional communication capability despite the specific 4/1 channel configuration by integrating both forward and reverse paths.

Applications

• Industrial automation systems requiring isolated sensor interfaces
• Medical equipment needing patient isolation barriers
• Power electronics control circuits demanding high dv/dt noise rejection

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer direct channels. Confirm lot traceability and RoHS compliance status prior to integration. Check current availability as supply may be limited or subject to allocation. Ensure storage conditions meet humidity sensitivity requirements before reflow soldering processes.

Selection Notes

Select this part when five isolated channels are required in a single package. Compare power consumption against alternative isolators if battery life is critical. Verify that the 150 Mb/s data rate meets system timing requirements. Ensure the 16-SOIC footprint fits the PCB layout constraints.

Part Context

This component belongs to the ADuM25xN family of general-purpose digital isolators. These devices integrate capacitive sensing and RF coil technologies on a single CMOS substrate. The family offers various channel configurations to suit different isolation needs while maintaining consistent performance characteristics across the series.

Replacement Considerations

Cross-reference with ADUM251N1BRIZ for similar specifications but different channel directionality. Verify pinout compatibility and functional equivalence before substitution. Consult official datasheets for detailed parameter comparisons to ensure system integrity is maintained during replacement.

FAQ

What is the maximum common mode transient immunity rating?

The device provides a minimum common mode transient immunity of 75 kV/µs.

Does the ADUM251N0BRIZ support bidirectional data transmission?

Yes, it includes four forward channels and one reverse channel, allowing for limited bidirectional communication.