ADUM1250SRZ-RL7

Overview

The ADUM1250SRZ-RL7 is a hot-swappable digital isolator featuring two nonlatching, bidirectional communication channels compatible with I²C interfaces. It supports data rates up to 1Mbps with a maximum propagation delay of 162ns. The device operates on supply voltages between 3V and 5.5V, consuming approximately 2.7mA to 2.8mA per side. It provides 2500Vrms isolation voltage and functions within a temperature range of -40°C to +105°C. Packaged in an 8-pin SOIC, it integrates thermal protection for safe insertion into live buses.

Feature Summary

• Hot-swappable design prevents data faults during insertion into active buses
• Bidirectional channels eliminate the need for separate transmit and receive signals
• Magnetic coupling technology ensures galvanic isolation without optical components

Applications

• Isolated I2C, SMBus, or PMBus interfaces
• Multi-drop I2C interface systems
• Battery management solutions (BMS)
• Industrial automation and motion control
• Power supplies and network equipment

Procurement Notes

Verify the specific suffix SRZ against official Analog Devices documentation to confirm package type and tape/reel configuration. Ensure compatibility with I2C bus capacitance limits and check for updated lifecycle status directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when hot-swappability is required for I2C isolation. Compare channel count and isolation voltage requirements against alternatives like the ADUM1252 if higher isolation ratings are needed. Verify that the 1Mbps data rate meets system timing constraints.

Part Context

This part belongs to the ADuM1250 series of iCoupler digital isolators. It utilizes Analog Devices' proprietary chip-scale transformer technology to provide high-speed signal transmission across isolation barriers while maintaining low power consumption and small form factor advantages over traditional optocouplers.

Replacement Considerations

Check for direct pin-compatible substitutes within the ADuM125x family. Verify electrical parameters such as isolation voltage and data rate match application requirements before substituting.