ADUM3211TRZ-RL7

Overview

The ADUM3211TRZ-RL7 is a dual-channel digital isolator from Analog Devices, utilizing magnetic coupling technology for signal transmission. It features a unidirectional data flow with a maximum data rate of 10 Mb/s and a common-mode transient immunity of 25 kV/µs. The device operates on a single power supply ranging from 3 V to 5.5 V, drawing a typical operating current of 6.4 mA. Key electrical parameters include a propagation delay of 50 ns and rise/fall times of 3 ns. It provides an insulation voltage of 2500 Vrms and supports pulse widths down to 100 ns. The component is housed in an 8-pin SOIC package and functions within a temperature range of -40°C to +105°C.

Feature Summary

• Enhanced system-level ESD protection performance compliant with IEC 61000-4-x standards
• High operational temperature capability up to 125°C
• Default low-level output state configuration
• Low-power operation optimized for 5 V supply voltage

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing high reliability and safety isolation
• Power metering applications with high voltage separation requirements
• Inverter motor control circuits

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates prior to procurement. Ensure the ordering part number matches the required data rate variant, as other suffixes may denote different speed grades. Validate that the SOIC-8 package dimensions align with your PCB footprint design constraints.

Selection Notes

Select this component when bidirectional communication is not required, as it supports only unidirectional channels. Compare against the ADUM3211ARZ variant if lower power consumption at reduced data rates (1 Mb/s) is prioritized over speed. Ensure the application environment does not exceed the specified junction temperature limits. Verify that the 2500 Vrms isolation rating meets the safety standards of the target system.

Part Context

This part belongs to the ADuM3211 series of dual-channel digital isolators. It shares the same pinout and basic functionality with variants like the ADUM3211ARZ but differs in performance specifications such as data rate and power consumption. The series utilizes Analog Devices' iCoupler technology for robust isolation without external magnetics.

Replacement Considerations

The ADUM3211ARZ-RL7 is a confirmed substitute offering identical pinout and form factor but operates at a lower data rate of 1 Mb/s with reduced power consumption. Direct replacement requires verifying that the system timing margins accommodate the slower speed.