ADUM1402YRWZ

Overview

The ADUM1402YRWZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features four independent channels with 2/2 directionality in a 16-SOIC package. Key electrical parameters include a data rate of 1 Mb/s, isolation voltage of 2500 Vrms, and common-mode transient immunity of 25 kV/µs. The device operates on a supply voltage range of 2.7 V to 5.5 V, with a typical propagation delay of 65 ns and rise/fall times of 3 ns. It supports an operating temperature range from -40°C to +105°C.

Feature Summary

• Integrates four isolated digital channels using proprietary iCoupler magnetic coupling technology for signal transmission across isolation barriers.
• Provides high common-mode transient immunity to reject noise spikes in electrically noisy environments.
• Supports bidirectional data flow with configurable channel directionality for flexible system integration.

Applications

• Industrial automation systems requiring galvanic isolation between microcontrollers and peripheral devices
• Medical equipment interfaces needing certified isolation for patient safety compliance
• Power electronics control circuits isolating gate drivers from low-voltage logic

Procurement Notes

Verify the specific suffix 'Y' against the official Analog Devices datasheet to confirm it denotes the standard commercial grade variant within the ADUM1402 family. Ensure the ordering part number matches the required tape-and-reel packaging format indicated by the '-RL' suffix if applicable to your assembly process. Cross-reference the manufacturer's latest documentation to validate pinout compatibility and thermal specifications before finalizing procurement.

Selection Notes

Select this component when a quad-channel solution is required for cost-effective isolation in space-constrained designs. The 16-SOIC package offers a compact footprint suitable for surface-mount applications. Consider the 2500 Vrms isolation rating and 25 kV/µs CMTI for robustness in industrial settings. Evaluate the 1 Mb/s data rate against system timing requirements to ensure adequate performance for the intended communication protocol.

Part Context

The ADUM1402 belongs to the iCoupler family of digital isolators, which replaces traditional optocouplers and transformer-based solutions. This series leverages silicon process technology to provide superior reliability and lower power consumption. The ADUM1402 specifically addresses applications needing multiple isolated channels without the complexity of external magnetics or LED degradation concerns associated with optical isolation.

Replacement Considerations

Official substitutes within the same family include ADUM1400 and ADUM1401, which share similar form factors but may differ in channel directionality or specific electrical characteristics. Verify functional equivalence regarding isolation voltage and data rates before substitution.