ADUM1280BRZ

Overview

The ADUM1280BRZ is a dual-channel digital isolator from Analog Devices, utilizing magnetic coupling technology for signal transmission. It operates within a supply voltage range of 3.135 V to 5.5 V and supports data rates up to 25 Mb/s. The device provides an insulation voltage of 3000 Vrms and exhibits a typical propagation delay of 23 ns with rise and fall times of 3 ns. It functions in unidirectional mode and is rated for operation between -40°C and +125°C. Packaged in an SOIC-8 surface-mount format, it draws operating currents of 4.8 mA and 6.2 mA on its respective channels.

Feature Summary

• Implements magnetic coupling isolation technology for robust signal integrity
• Supports bidirectional communication capabilities within the component family architecture
• Facilitates level translation between 3.3 V and 5 V logic domains

Applications

• General-purpose digital isolation in industrial systems
• Isolation for SPI and UART communication interfaces
• Medical equipment requiring reinforced isolation barriers

Procurement Notes

Verify current availability status as distribution channels may indicate limited stock or special order requirements. Confirm RoHS compliance details through official manufacturer documentation prior to integration. Ensure the specific BRZ suffix matches design specifications for lead-free packaging standards. Cross-reference ordering information with authorized distributors to validate authenticity and traceability.

Selection Notes

Select this component when dual-channel isolation is required with moderate data rate needs up to 25 Mbps. Consider the SOIC-8 package constraints for PCB layout space. Evaluate power consumption requirements against the specified operating currents. Verify that the 3000 Vrms isolation rating meets safety standards for the intended application environment.

Part Context

This part belongs to the ADUM1280 series of small, low-power digital isolators. It is designed to replace bulky optocouplers in modern electronic designs. The series emphasizes compact form factors while maintaining high reliability. Analog Devices utilizes proprietary iCoupler technology for these devices.

Replacement Considerations

Check for direct pin-compatible alternatives within the ADUM12xx family. Verify if higher channel counts or different isolation voltages are needed. Ensure replacement parts maintain the same SOIC-8 footprint and electrical characteristics.