ADUM3482ARSZ

Overview

The ADUM3482ARSZ is a small, quad-channel digital isolator based on Analog Devices iCoupler technology. It provides four independent channels with 2/2 channel directionality in a 20-lead SSOP package. Key electrical parameters include a data rate of 1 Mbps, isolation voltage of 3750 Vrms, and common-mode transient immunity of 25 kV/µs. The device operates within a supply voltage range of 3 V to 5.5 V, features a maximum propagation delay of 90 ns, and functions across an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrates four isolated digital channels using monolithic air core transformer technology for high-speed signal transmission.
• Provides robust galvanic isolation with high common-mode transient immunity to protect sensitive circuitry from noise.
• Supports flexible bidirectional or unidirectional data flow configurations through internal channel direction control.

Applications

• Industrial automation systems requiring reliable signal isolation between microcontrollers and peripheral devices.
• Medical equipment interfaces needing certified isolation barriers for patient safety compliance.
• Power electronics monitoring circuits where high-voltage noise rejection is critical.

Procurement Notes

Verify the specific suffix (ARSZ) against official Analog Devices documentation to confirm the tube packaging format and pin configuration. Ensure compatibility with the target PCB footprint for the 20-lead SSOP package. Cross-reference the revision level in the datasheet to validate performance specifications against current manufacturing standards before finalizing procurement orders.

Selection Notes

Select this component when a quad-channel solution with 3750 Vrms isolation is required in a compact surface-mount package. It is suitable for applications demanding 1 Mbps data rates and wide operating temperature ranges. Consider alternative models if higher data speeds or different channel counts are necessary for the specific system design requirements.

Part Context

This part belongs to the ADuM348x family of digital isolators from Analog Devices. These devices utilize iCoupler technology to replace traditional magnetic components, offering smaller form factors and improved reliability. The ADUM3482 variant specifically addresses applications requiring four isolated channels with configurable directionality.

Replacement Considerations

The ADUM3482BRSZ is a related variant within the same family, featuring similar isolation characteristics but potentially different packaging or speed options. Verify pinout compatibility and electrical specifications before substituting any other quad-channel isolators from different manufacturers.