ADUM1245ARZ-RL7

Overview

The ADUM1245ARZ-RL7 is a micropower, dual-channel digital isolator from Analog Devices Inc., utilizing iCoupler magnetic coupling technology. It provides galvanic isolation with a rated insulation voltage of 3000Vrms and a common-mode transient immunity (CMTI) of 25kV/µs. The device supports unidirectional data transfer at a maximum data rate of 2 Mbps. It operates within a supply voltage range of 2.25V to 3.6V and features typical propagation delays of 180ns. Packaged in an 8-SOIC housing, it functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrates two independent channels for bidirectional or unidirectional signal isolation using on-chip transformer technology.
• Provides high common-mode transient immunity to prevent false triggering in noisy environments.
• Operates with low power consumption suitable for energy-efficient applications.
• Features robust basic insulation ratings for safety-critical interfaces.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing galvanic separation for patient safety
• Power electronics monitoring and control circuits
• Instrumentation systems with ground potential differences

Procurement Notes

Verify the specific suffix RL7 indicates tape and reel packaging when ordering. Confirm the 8-SOIC package dimensions match your PCB footprint requirements. Ensure the 2.25V to 3.6V supply voltage range aligns with your system design. Check for RoHS compliance status if required by your manufacturing standards. Validate that the 3000Vrms isolation rating meets your application's safety regulations.

Selection Notes

Select this component when dual-channel isolation is required within a compact SOIC-8 package. It is suitable for designs prioritizing low power consumption alongside moderate data rates up to 2 Mbps. Consider its 25kV/µs CMTI for environments with high dv/dt noise. Ensure the unidirectional channel configuration matches your signal flow requirements. Verify compatibility with standard logic levels within the specified supply voltage range.

Part Context

This part belongs to the ADuM124x series of iCoupler digital isolators. It shares the same core magnetic coupling technology as related models like the ADUM1241 and ADUM1246. The series is designed to replace traditional optocouplers in many applications. It offers improved performance in terms of speed and reliability while maintaining small form factors.

Replacement Considerations

Direct substitutes include other parts in the ADuM124x family such as the ADUM1241ARZ-RL7 or ADUM1246ARZ-RL7, depending on channel directionality needs. Verify pin-to-pin compatibility and electrical specifications before substitution. Ensure the replacement maintains the required 3000Vrms isolation rating and 2 Mbps data rate.