ADUM1100AR-RL7

Overview

The ADUM1100AR-RL7 is a single-channel digital isolator utilizing iCoupler magnetic coupling technology. It supports data rates up to 100 Mbps with a propagation delay of 18 ns and rise/fall times of 3 ns. The device operates on a supply voltage between 3 V and 5.5 V, drawing 800 uA. It provides 2500 Vrms isolation and withstands 25 kV/µs common-mode transient immunity. Packaged in an SOIC-8, it functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates high-speed CMOS logic with monolithic air core transformer technology for signal transmission.
• Provides galvanic isolation without the need for external optical components or transformers.
• Supports level translation between 3.3 V and 5.0 V logic families.

Applications

• General-purpose digital isolation in industrial communication interfaces
• Isolation for microcontroller peripheral connections
• Signal isolation in measurement and control systems

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm RoHS compliance status as indicated in official documentation. Check current availability as supply may be limited. Ensure the SOIC-8 package matches design requirements. Validate that the specific suffix corresponds to the desired reel quantity.

Selection Notes

Select this component when unidirectional isolation is required for single-channel applications. Consider the 100 Mbps speed limit for high-frequency signals. Evaluate the 2500 Vrms isolation barrier against system safety standards. Compare power consumption at 800 uA against low-power alternatives if battery life is critical.

Part Context

This part belongs to the ADuM1100 series of digital isolators from Analog Devices. It represents a compact solution for replacing traditional optocouplers in space-constrained designs. The series emphasizes reliability and longevity due to the absence of degrading organic materials found in optical devices.

Replacement Considerations

Check for direct pin-compatible replacements within the ADuM family. Verify if updated revisions offer improved performance metrics. Ensure substitute parts maintain the same SOIC-8 footprint and electrical characteristics.