ADUM3482BRSZ-RL7

Overview

The ADUM3482BRSZ-RL7 is a quad-channel digital isolator from Analog Devices, utilizing iCoupler technology for magnetic coupling isolation. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 25 Mb/s. The device provides an insulation voltage of 3750 Vrms and exhibits a common-mode transient immunity of 25 kV/µs. Key electrical parameters include a typical propagation delay of 33 ns and a working supply current of 7.3 mA. It functions in unidirectional mode with rise and fall times of approximately 3 ns. The component is rated for operation between -40°C and +125°C and is housed in a 20-lead SSOP package.

Feature Summary

• Integrates four independent digital channels using monolithic air core transformer technology for signal transmission across isolation barriers.
• Provides high common-mode transient immunity to prevent false triggering in noisy environments.
• Supports bidirectional data communication with low propagation delay for precise timing control.
• Operates reliably across extended industrial temperature ranges without external components.

Applications

• Industrial automation systems requiring robust galvanic isolation
• Medical equipment needing certified safety isolation barriers
• Power metering applications with high-voltage sensing requirements
• Inverter drives and motor control circuits

Procurement Notes

Verify the specific suffix BRSZ-RL7 against official Analog Devices documentation to confirm the reel packaging configuration and tape-and-reel quantity. Ensure the order matches the required lead time and availability status as distribution channels may vary. Confirm RoHS compliance details directly with the manufacturer's latest datasheet before finalizing procurement contracts.

Selection Notes

Select this component when a quad-channel solution with 3750 Vrms isolation is required. Compare the 25 Mb/s data rate against system bandwidth needs. Evaluate the 7.3 mA supply current for power budget constraints. Consider the SSOP-20 footprint for PCB layout compatibility. Verify that the unidirectional channel configuration aligns with the circuit design requirements.

Part Context

This part belongs to the ADUM3482 series of small, quad-channel digital isolators. It shares the same functional architecture as the ADUM3482ARSZ but differs in performance specifications such as data rate and propagation delay. The series utilizes iCoupler technology to replace traditional optocouplers in space-constrained designs.

Replacement Considerations

The ADUM3482ARSZ is a related variant within the same family. Verify if the lower data rate and higher propagation delay of the ARSZ variant meet the application requirements. No other direct cross-model substitutes are confirmed in public documentation.