ADUM1311BRWZ

Digital Isolators Overview

The ADUM1311BRWZ is a triple-channel digital isolator utilizing iCoupler magnetic coupling technology. It provides unidirectional signal isolation with a data rate of 10 Mb/s and an insulation voltage of 3750 Vrms. The device operates within a supply voltage range of 2.7 V to 5.5 V, drawing typical supply currents of 1.8 mA and 2.2 mA on the primary and secondary sides, respectively. Key electrical specifications include a maximum propagation delay of 50 ns, rise and fall times of 2.5 ns, and a common-mode transient immunity of 25 kV/µs. It supports pulse widths down to 100 ns with a maximum pulse width distortion of 5 ns. The component functions reliably across an operating temperature range of -40°C to +105°C.

Digital Isolators Feature Summary

• Integrates three independent unidirectional channels for efficient signal isolation in compact designs.
• Employs iCoupler magnetic coupling technology to eliminate the need for external transformer drivers or complex biasing circuits.
• Delivers high common-mode transient immunity to maintain signal integrity in electrically noisy environments.

Digital Isolators Applications

• Industrial automation systems requiring robust galvanic isolation between microcontrollers and peripheral devices.
• Medical equipment interfaces needing reliable signal transmission across safety isolation barriers.
• Power electronics control circuits for monitoring and managing high-voltage switching operations.

Digital Isolators Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and tape/reel configuration. Ensure compatibility with system voltage levels and thermal requirements before integration. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status based on the latest manufacturer declarations.

Digital Isolators Selection Notes

Select this component when unidirectional isolation is sufficient for the application architecture. Consider the 10 Mb/s data rate limit relative to system timing requirements. Evaluate the 16-pin SOIC package constraints against available PCB real estate. Compare power consumption metrics against alternative isolators if battery life is a critical design parameter.

Digital Isolators Part Context

This device belongs to the ADUM131x family of triple-channel digital isolators from Analog Devices. It shares architectural similarities with other members like the ADUM1310 and ADUM1311ARWZ but differs in speed grades and packaging options. The BRWZ suffix indicates a specific commercial grade variant housed in a standard SOIC-16 package.

Digital Isolators Replacement Considerations

The ADUM1311ARWZ serves as a lower-speed alternative within the same series. Verify pinout compatibility and electrical parameter overlaps before substituting. Consult official cross-reference guides for validated replacements ensuring identical isolation ratings and channel configurations.