ADUM2401BRWZ

Overview

The ADUM2401BRWZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It operates within a supply voltage range of 2.7 V to 5.5 V and supports data rates up to 10 Mbps. The device features a 5000 Vrms isolation voltage and a common-mode transient immunity (CMTI) of 25 kV/µs. Propagation delays are typically 50 ns with pulse width distortion maximized at 3 ns. It functions in an industrial temperature range of -40°C to +105°C and is housed in a 16-lead SOIC package.

Feature Summary

• Integrates four independent bidirectional channels using on-chip transformer-based magnetic coupling for signal transmission.
• Provides robust noise immunity with high common-mode transient rejection capabilities suitable for noisy environments.
• Supports CMOS logic levels with integrated level shifting for direct interface with microcontrollers and processors.
• Eliminates the need for external bootstrap capacitors or bias voltages required by traditional optocouplers.

Applications

• Industrial automation systems requiring galvanic isolation between control and power stages.
• Medical equipment needing reliable signal isolation for patient safety compliance.
• Power electronics interfaces such as motor drives and inverter gate driving circuits.
• Communication bus isolation for RS-485, CAN, and other serial data lines.

Procurement Notes

Verify the specific suffix 'BRWZ' to confirm the tape-and-reel packaging format and commercial grade temperature rating. Ensure compatibility with standard SOIC-16 footprints during PCB layout. Confirm that the 10 Mbps data rate meets system timing requirements. Check for RoHS compliance documentation if environmental regulations apply to the final assembly.

Selection Notes

Select this component when four isolated channels are required in a single package to save board space. Choose over optocouplers for faster switching speeds and lower power consumption. Consider the 5000 Vrms isolation barrier for high-voltage separation needs. Evaluate the 2.7 V to 5.5 V supply range against available system rails.

Part Context

This part belongs to the ADUM2401 series of quad-channel digital isolators. It shares the same functional architecture as the ADUM2400 but offers higher data throughput. The BRWZ designation indicates a specific manufacturing lot and packaging configuration within the Analog Devices portfolio. It complements lower-speed variants like the ADUM2401ARIZ for applications demanding greater bandwidth.

Replacement Considerations

The ADUM2401BRIZ is a parameter-equivalent alternative offering identical electrical performance in an industrial temperature range variant. Verify pinout compatibility before substitution. Other family members like the ADUM2401CRWZ may offer different temperature grades but require validation of thermal specifications.