ADUM1201WSRZ35

Overview

The ADUM1201WSRZ35 is a dual-channel digital isolator utilizing iCoupler magnetic coupling technology. It operates within a supply voltage range of 2.7V to 5.5V and provides an isolation voltage of 2500 Vrms. The device supports a data rate of 1 Mbps with unidirectional channel polarity. Key electrical parameters include a maximum propagation delay of 150 ns, typical rise and fall times of 10 ns, and a minimum common-mode transient immunity of 25 kV/µs. It functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrates two independent signal paths using on-chip miniaturized transformers for galvanic isolation.
• Provides high common-mode transient immunity to reject noise in electrically noisy environments.
• Supports bidirectional logic transmission with low power consumption characteristics.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing safety-certified signal isolation
• Power electronics control circuits with ground potential differences

Procurement Notes

Verify the specific suffix '35' against official Analog Devices documentation to confirm package type and tape-and-reel specifications. Confirm current manufacturing status as this variant may be obsolete or superseded by newer revisions. Ensure compatibility with existing PCB footprints before procurement.

Selection Notes

Select this component when dual-channel isolation is required at lower data rates compared to higher-speed variants. Consider the SOIC-8 package constraints and thermal performance limits. Evaluate if the 1 Mbps speed meets system timing requirements versus faster alternatives like the ADUM1201BRZ.

Part Context

This part belongs to the ADUM1201 series of iCoupler digital isolators from Analog Devices. The series utilizes proprietary silicon-on-polymer technology to integrate passive components directly onto the substrate, offering a compact solution for signal isolation without external magnetics.

Replacement Considerations

Officially documented substitutes include ADUM121N1WBRZ. Verify pinout compatibility and parameter equivalence before substitution.

FAQ

What is the isolation voltage rating?

The device is rated for 2500 Vrms isolation voltage.

Does it support bidirectional communication?

Yes, the channels support bidirectional logic transmission.