ADUM1286ARZ

Overview

The ADUM1286ARZ is a dual-channel digital isolator from Analog Devices, utilizing magnetic coupling technology to provide electrical isolation between circuits. It operates within a supply voltage range of 3.135 V to 5.5 V and supports data rates up to 1 Mb/s. The device offers an insulation voltage of 3000 Vrms and features a propagation delay of 23 ns with rise and fall times of 3 ns. It functions in unidirectional mode with default low outputs, drawing typical operating currents of 2.1 mA and 2.3 mA per channel. The component is housed in an SOIC-8 package and is rated for operation between -40°C and +125°C.

Feature Summary

• Provides galvanic isolation via on-chip magnetic coupling architecture
• Supports high common-mode transient immunity for noise rejection
• Maintains signal integrity with low propagation delay characteristics

Applications

• Industrial process control systems requiring isolated communication
• Medical equipment needing patient isolation barriers
• Power metering applications involving high-voltage domains

Procurement Notes

Verify the specific suffix ARZ against official Analog Devices documentation to confirm the tube packaging configuration. Confirm RoHS compliance status through current manufacturer declarations. Check availability as distribution channels may indicate limited stock or discontinuation statuses that differ from active production lists.

Selection Notes

Select this component when a 1 Mbps data rate is sufficient for the application, offering lower power consumption compared to higher-speed variants like the ADUM1285. Ensure the system design accommodates the 3.135 V minimum supply voltage. Verify that the SOIC-8 footprint matches the PCB layout requirements for thermal and mechanical stability.

Part Context

This part belongs to the ADUM128x series of general-purpose digital isolators. It shares the same physical package and basic isolation specifications as other members but differs in data rate capabilities. The series is designed for replacing traditional optocouplers in space-constrained designs while providing superior performance consistency.

Replacement Considerations

The ADUM1286ARZ-RL7 serves as a reel-packaged alternative within the same family. Cross-referencing with ADUM1285BRZ requires noting the significant difference in data rate (25 Mbps vs 1 Mbps) and increased power consumption.