ADUM2250ARIZ

Overview

The ADUM2250ARIZ is a hot-swappable, dual-channel digital isolator designed for I²C interfaces. It utilizes Analog Devices' iCoupler magnetic coupling technology to provide robust signal isolation with a rated insulation voltage of 5000 Vrms. The device supports bidirectional communication at data rates up to 1 Mbps and operates within a supply voltage range of 3 V to 5.5 V. Packaged in a 16-lead SOIC, it functions reliably across an industrial temperature range of -40°C to +105°C.

Feature Summary

• Hot-swappable capability allows connection or disconnection while the system is powered without damaging the device or disrupting bus operation.
• Nonlatching bidirectional channels ensure reliable data transmission compatible with standard I²C interface protocols.
• Magnetic coupling technology provides high isolation voltage ratings suitable for demanding industrial environments.

Applications

• Industrial automation systems requiring isolated I²C communication
• Medical equipment needing galvanic isolation for safety compliance
• Data acquisition modules interfacing with sensors across isolation barriers

Procurement Notes

Verify component authenticity through authorized distributors due to limited availability status. Confirm package integrity and pin alignment upon receipt. Cross-reference datasheet revisions to ensure compatibility with specific design requirements. Check for obsolescence notices as supply constraints may affect long-term production viability.

Selection Notes

Choose this component when hot-swappable I²C isolation is required alongside high voltage protection. Ensure the 1 Mbps data rate meets application timing needs. Verify that the 16-pin SOIC footprint fits the PCB layout constraints. Consider power consumption characteristics relative to other isolators in the ADuM series.

Part Context

Part of the ADuM2250 family of digital isolators from Analog Devices. This series leverages iCoupler technology to replace traditional optocouplers, offering superior performance in speed, size, and reliability. The ADUM2250 specifically targets applications requiring isolated I²C buses with hot-swap capabilities.

Replacement Considerations

Check for direct substitutes within the ADuM225x series. Verify pinout compatibility before substituting with similar isolators. Ensure replacement parts maintain the same insulation voltage and data rate specifications.