ADUM342E0BRQZ

Overview

The ADUM342E0BRQZ is a quad-channel digital isolator from the Analog Devices ADuM342E series, utilizing iCoupler technology with integrated CMOS and monolithic transformer coupling. It provides four independent data channels in a QSOP-16 package. The device supports a maximum data rate of 150 Mb/s at 5V operation. It operates on supply voltages ranging from 2.25V to 5.5V. Key electrical parameters include a typical propagation delay of 6.2 ns and a maximum of 10 ns. The insulation voltage is rated at 5.7 kVrms. It features high common-mode transient immunity of 180 kV/µs and operates within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates high-speed CMOS and back-to-back monolithic air-core transformer technology for magnetic coupling isolation.
• Provides four independent bidirectional or unidirectional data channels with strict channel matching.
• Features high common-mode transient immunity to suppress radiated and conducted noise effectively.
• Supports flexible logic levels with input/output pin compatibility for 2.25V to 5.5V systems.

Applications

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

Procurement Notes

Verify the specific suffix 'E0' indicates the fault-safe low output configuration when ordering. Confirm the 'QSOP-16' package type matches your PCB footprint requirements. Check for moisture sensitivity level markings as the component is humidity-sensitive. Ensure the supplier provides valid RoHS compliance documentation. Validate that the datasheet revision matches the design specifications for timing parameters.

Selection Notes

Select this component when four isolated channels are required in a compact surface-mount package. Choose the E0 variant specifically if a guaranteed low output state is needed during power-up or fault conditions. Consider the 5.7 kVrms insulation rating for applications requiring reinforced isolation barriers. Evaluate the 150 Mb/s data rate limit against your system's maximum signaling speed. Verify that the 2.25V minimum supply voltage aligns with your lowest operating voltage scenario.

Part Context

This part belongs to the ADuM340E/ADuM341E/ADuM342E family of quad-channel digital isolators. The ADuM342E series is distinguished by its 5.7 kVrms insulation capability compared to lower-rated variants. These devices are designed to replace bulky traditional optocouplers in space-constrained designs. The family offers various channel configurations and polarity options to suit different interface needs.

Replacement Considerations

Public confirmed substitute part numbers: ADUM342E1BRQZ (Fault-safe High variant), ADUM342E0BRQZ-RL7 (Reel packaging variant).

FAQ

What does the 'E0' suffix indicate in the ADUM342E0BRQZ part number?

The 'E0' suffix specifies that the device has a fault-safe low output configuration, ensuring the outputs go low in the event of a power failure or fault condition.

What is the maximum insulation voltage rating for this component?

The ADUM342E0BRQZ has an insulation voltage rating of 5.7 kVrms, which qualifies it for reinforced isolation applications under relevant safety standards.