ADUM340E0BRQZ

Overview

The ADUM340E0BRQZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler technology with integrated CMOS and monolithic air-core transformer components. It provides independent data channels with a maximum propagation delay of 10 ns and pulse width distortion under 3 ns at 5 V operation. The device supports a data rate up to 150 Mbps and operates on supply voltages ranging from 2.25 V to 5.5 V. It features high common-mode transient immunity and meets CISPR 32/EN 55032 Class B limits.

Feature Summary

• Integrates four independent unidirectional data channels within a single package for multi-signal isolation.
• Utilizes iCoupler technology combining CMOS processes with back-to-back monolithic air-core transformers.
• Provides robust noise immunity against both radiated and conducted interference signals.
• Supports voltage level translation between isolated domains using dual power supplies.

Applications

• Isolation for Serial Peripheral Interface (SPI) communication lines
• Signal isolation in RS-485 and Controller Area Network (CAN FD) networks
• PWM controller signal transmission in industrial motor drives
• General-purpose multi-channel isolation in automated systems

Procurement Notes

Verify the specific suffix configuration to ensure the correct channel directionality and fault-safe output state match the design requirements. Confirm that the QSOP-16 package variant aligns with the target PCB footprint and thermal management strategy. Cross-reference the manufacturing date code and RoHS compliance status with current supplier documentation before finalizing procurement orders.

Selection Notes

Select this component when high-speed data transfer across multiple isolated channels is required without external magnetic components. The low dynamic功耗 per channel makes it suitable for battery-powered or thermally constrained applications. Ensure the operating temperature range covers the intended environmental conditions, as the device is rated for extended industrial temperatures up to 125°C.

Part Context

This part belongs to the ADuM34xE series of quad digital isolators designed for demanding industrial and automotive environments. The series offers various configurations to suit different isolation voltage ratings and data rates. It represents a compact solution for replacing traditional optocouplers in space-constrained designs requiring higher reliability and faster switching speeds.

Replacement Considerations

Compatible substitutes include the ADUM340E1BRQZ and ADUM340E2BRQZ variants, which share similar pinouts but differ in channel directionality or fault-safe options. Verify electrical parameters such as isolation voltage and data rate compatibility before swapping parts in existing designs.