ADUM6211CRSZ

Overview

The ADUM6211CRSZ is a unidirectional digital isolator featuring two independent channels with an integrated DC/DC converter. It operates within a supply voltage range of 3.135 V to 5.5 V and supports data rates up to 100 Mb/s. The device provides an insulation rating of 3750 Vrms using magnetic coupling technology. Key electrical parameters include a propagation delay of 31 ns, a common-mode transient immunity of 25 kV/µs, and operating currents of 15 mA and 15.6 mA for the respective sides. It functions reliably across a temperature range of -40°C to +105°C and is housed in a 20-lead SSOP package.

Feature Summary

• Integrates on-chip DC/DC converters to eliminate external isolation transformer requirements
• Utilizes silicon dioxide (SiO2) based magnetic coupling for high reliability
• Provides bidirectional signal isolation with unidirectional channel configuration
• Offers high common-mode transient immunity for noisy industrial environments

Applications

• Industrial automation and process control systems
• Medical equipment requiring galvanic isolation
• Power management circuits with isolated feedback loops
• Data acquisition systems with isolated sensor interfaces

Procurement Notes

Verify the specific suffix 'CRSZ' against the manufacturer's current datasheet to confirm pinout compatibility and thermal specifications. Ensure that the ordering information matches the required package type and temperature grade. Cross-reference the component marking with official Analog Devices identification guides to prevent counterfeit parts. Confirm RoHS compliance status through the latest product release notes before finalizing procurement orders.

Selection Notes

Select this component when a compact solution with integrated power conversion is required for unidirectional signal transmission. Compare the 100 Mb/s data rate against system bandwidth needs to ensure adequate performance margins. Evaluate the 3750 Vrms insulation rating against safety standards applicable to the target application. Consider the SSOP-20 footprint constraints during PCB layout design to accommodate the necessary clearance distances.

Part Context

This part belongs to the ADUM621x family of isoPower digital isolators from Analog Devices. These devices are designed to replace traditional optocouplers by offering superior performance in speed, power consumption, and size. The family includes variants with different channel counts and data rates, all sharing the core technology of integrated DC/DC conversion for efficient isolated power delivery.

Replacement Considerations

Direct replacements within the same series include ADUM6211ARZ or ADUM6211BRZ, which share identical functional specifications but differ in manufacturing lot or testing criteria. Verify that any substitute maintains the same SSOP-20 package dimensions and pin assignments to ensure mechanical compatibility without redesigning the printed circuit board.