ADUM140E0BRZ

Overview

The ADUM140E0BRZ is a general-purpose digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features four independent channels with unidirectional signal transmission. Key electrical parameters include a data rate of 150 Mbps, isolation voltage of 3000 Vrms, and common-mode transient immunity of 75 kV/µs. The device operates on supply voltages between 1.8 V and 5 V, with a typical power consumption of 12 mA per channel. It supports SPI protocols and functions within an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrates four isolated channels using proprietary iCoupler magnetic coupling technology for robust signal transmission.
• Provides high common-mode transient immunity to maintain signal integrity in electrically noisy environments.
• Supports standard CMOS logic levels with low propagation delay for precise timing applications.
• Offers flexible power supply operation compatible with both 1.8 V and 5 V systems.

Applications

• Industrial communication interfaces such as RS-485 and CAN bus isolation
• Isolation of microcontroller peripheral buses including SPI and I2C
• Medical equipment requiring reinforced galvanic isolation
• Power management circuits involving gate drive signal isolation

Procurement Notes

Verify the specific suffix 'E0' against the official Analog Devices datasheet to confirm channel configuration and insulation ratings. Ensure the SOIC-16 package width matches your PCB footprint requirements. Check RoHS compliance status and moisture sensitivity level before storage. Confirm that the unidirectional channel arrangement aligns with your circuit design needs.

Selection Notes

Select this component when four isolated bidirectional or unidirectional paths are required within a single package. Consider the 3000 Vrms isolation rating for safety standards compliance. Evaluate the 150 Mbps data rate against system throughput requirements. Compare power consumption metrics with alternative capacitive isolators if energy efficiency is critical.

Part Context

This part belongs to the ADuM140 series of quad-channel digital isolators. It represents Analog Devices' implementation of silicon-based magnetic isolation, replacing traditional transformer-based solutions. The series is designed for cost-effective, high-reliability isolation in industrial and consumer electronics.

Replacement Considerations

Public confirmed substitute part numbers include ADUM140D0BRZ and ADUM140E1BRZ. Verify pinout compatibility and specific insulation characteristics before substitution.

FAQ

What is the maximum common-mode transient immunity of the ADUM140E0BRZ?

The device provides a minimum common-mode transient immunity of 75 kV/µs.

Does the ADUM140E0BRZ support bidirectional communication?

No, the ADUM140E0BRZ features unidirectional channels only.

What is the operating supply voltage range for this isolator?

The device operates with supply voltages ranging from 1.8 V to 5 V.