ADUM3482BRSZ

Overview

The ADUM3482BRSZ is a small, quad-channel digital isolator from Analog Devices Inc., utilizing iCoupler magnetic coupling technology. It features a 3750 Vrms isolation voltage and supports data rates up to 25 Mb/s with a typical propagation delay of 33 ns. The device operates on a single power supply ranging from 3 V to 5.5 V, drawing a maximum operating current of 7.3 mA. It is housed in a 20-lead SSOP package and functions within an industrial temperature range of -40°C to +125°C.

Feature Summary

• Integrates four independent digital channels for bidirectional or unidirectional signal transmission across isolation barriers.
• Employs iCoupler technology to provide high common-mode transient immunity without requiring external magnetics.
• Offers compact form factor suitable for space-constrained designs while maintaining robust electrical isolation.

Applications

• Industrial automation systems requiring galvanic isolation between microcontrollers and peripheral interfaces.
• Medical equipment needing reliable signal isolation for safety compliance.
• Power metering applications involving isolated communication buses such as RS-485 or CAN.

Procurement Notes

Verify the specific suffix BRSZ confirms the reel packaging configuration when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected variant matches the required channel directionality and data rate specifications for the target application design.

Selection Notes

Select this component when a quad-channel solution with 25 Mbps performance is required. Compare against the ADUM3480 series if bidirectional channel support is necessary instead of fixed directionality. Evaluate thermal dissipation requirements given the 2.47 W power dissipation rating in enclosed environments.

Part Context

This part belongs to the ADuM348x family of quad-channel digital isolators. It shares architectural similarities with the ADUM3480 and ADUM3481 but differs in channel directionality configurations. The family utilizes proprietary silicon-on-insulator technology to achieve high isolation ratings in standard surface-mount packages.

Replacement Considerations

The ADUM3482ARSZ serves as a tube-packaged alternative within the same functional family. Verify pinout compatibility and electrical parameter equivalence before substitution. Cross-reference datasheets to ensure identical isolation voltage and data rate capabilities.