ADUM3402CRWZ-RL

Overview

The ADUM3402CRWZ-RL is a quad-channel digital isolator utilizing Analog Devices iCoupler magnetic coupling technology. It provides bidirectional signal isolation with a data rate of 90 Mb/s and a maximum propagation delay of 32 ns. The device operates within a supply voltage range of 2.7 V to 5.5 V, drawing a typical operating current of 51 mA. It features an insulation voltage of 2500 Vrms and supports a common-mode transient immunity of 25 kV/µs. Packaged in a 16-pin SOIC, it functions reliably across an industrial temperature range from -40°C to +105°C.

Feature Summary

• Integrates four independent bidirectional channels for high-density signal isolation
• Employs iCoupler magnetic coupling technology to eliminate external transformer requirements
• Provides robust common-mode transient immunity for noisy industrial environments

Applications

• Industrial communication interfaces such as RS-485 and CAN bus systems
• Isolated gate drive circuits for power electronics
• General-purpose digital isolation in mixed-signal PCB designs

Procurement Notes

Verify the specific suffix RL indicates reel packaging when sourcing. Confirm the CRWZ designation corresponds to the commercial temperature grade and SOIC-16 package variant. Ensure compatibility with existing board layouts requiring 16-pin surface-mount components. Cross-reference datasheet revisions to confirm parameter consistency before final procurement approval.

Selection Notes

Select this component when bidirectional isolation is required for four separate signal lines. Compare against unidirectional variants like the ADUM3400 if channel directionality differs. Consider the ADUM340E1BRWZ-RL for applications demanding higher insulation voltage or automotive qualification. Evaluate power consumption constraints against the 51 mA typical operating current specification.

Part Context

This part belongs to the ADuM340x family of quad-channel digital isolators. It shares the same core architecture and pinout as the ADUM3400 and ADUM3401, differing primarily in channel configuration and directionality. The series represents a standard solution for general-purpose digital isolation needs in industrial and consumer electronics.

Replacement Considerations

The ADUM3400CRWZ-RL serves as a functional substitute if unidirectional channels are acceptable. Verify that any replacement maintains the 16-SOIC footprint and compatible electrical parameters.