ADUM3301BRWZ-RL

Overview

The ADUM3301BRWZ-RL is a three-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 10 Mbps. The device features unidirectional signal transmission with a propagation delay of 50 ns maximum. It provides 2500 Vrms isolation voltage and exhibits a common-mode transient immunity of 25 kV/µs. Designed for automotive applications, it holds AEC-Q100 qualification and functions reliably across an operating temperature range of -40°C to +105°C.

Feature Summary

• Integrates high-speed CMOS logic with single-chip air-core transformer technology for galvanic isolation.
• Provides robust common-mode transient immunity to protect against noise in harsh electrical environments.
• Offers automotive-grade reliability certified under the AEC-Q100 standard for extended temperature operation.

Applications

• Automotive electronic control units requiring isolated communication interfaces
• Industrial systems needing reliable signal transmission across ground potential differences
• Medical equipment demanding strict galvanic isolation standards

Procurement Notes

Verify the specific suffix 'BRWZ-RL' to confirm the reel packaging format and tape-and-reel quantity. Ensure the component meets the required AEC-Q100 automotive qualification status if deployed in vehicle electronics. Cross-reference the datasheet revision date to confirm compatibility with current design specifications and pinout definitions.

Selection Notes

Select this component when bidirectional isolation is not required, as it supports only unidirectional channels. Compare performance metrics such as propagation delay and power consumption against other iCoupler variants like the ADUM3301WARWZ-RL if higher data rates or bidirectional functionality are necessary. Evaluate thermal management requirements based on the specified operating current at the target supply voltage.

Part Context

This part belongs to the ADuM3301 series of three-channel digital isolators. It represents a evolution from traditional optocouplers by replacing LEDs and phototransistors with magnetic coupling elements. This architecture allows for smaller package sizes, lower power consumption, and improved consistency over time compared to legacy isolation technologies.

Replacement Considerations

The ADUM3301WBRWZ-RL serves as a functional equivalent within the same family, offering identical channel count and isolation ratings but packaged in tape-and-reel format instead of tube. Verify that the specific speed grade and packaging preference align with assembly line capabilities before substitution.