ADUM340E0WBRWZ

Overview

The ADUM340E0WBRWZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler technology with back-to-back monolithic air-core transformers. It features four independent data channels in a 16-lead SOIC package. The device supports bidirectional signal transmission with a maximum data rate of 150 Mbps at 5V operation. It operates on supply voltages ranging from 2.25V to 5.5V and provides an insulation voltage of 5700 Vrms. Typical propagation delay is 6.2 ns with a maximum of 10 ns. High common-mode transient immunity reaches 180 kV/μs. It includes fault-safe low output configuration and meets AEC-Q100 automotive qualification standards.

Feature Summary

• Integrates high-speed CMOS technology with back-to-back monolithic air-core transformer isolation for robust signal transmission.
• Provides high common-mode transient immunity to effectively suppress radiated and conducted noise interference.
• Features independent data channels with strict channel matching and fault-safe low output logic options.

Applications

• Isolation for Serial Peripheral Interface (SPI) communication lines
• Data converter isolation in industrial measurement systems
• General-purpose multi-channel isolation for complex embedded architectures

Procurement Notes

Verify the specific suffix 'W' indicates the wider SOIC-16 package variant when sourcing. Confirm that the '0' suffix denotes the fault-safe low output configuration required by your circuit design. Ensure compatibility with the 2.25V to 5.5V supply range. Check for AEC-Q100 automotive grade requirements if deploying in vehicle applications. Validate insulation ratings against system safety standards before integration.

Selection Notes

Select this component when high-density quad-channel isolation is required within a standard SOIC footprint. It is suitable for designs needing fault-safe low outputs to prevent false triggering during power loss. Choose this part over unidirectional variants if bidirectional data flow is necessary. Consider the 150 Mbps speed limit for high-frequency bus applications. Verify thermal performance at +125°C if operating in harsh environments.

Part Context

This part belongs to the ADuM340E series of quad-channel digital isolators. It shares the core iCoupler architecture with the ADUM341E and ADUM342E models but differs in channel directionality and output configuration. The ADUM340E specifically offers bidirectional channels with selectable fault-safe states, distinguishing it from the unidirectional ADUM341E and ADUM342E families.

Replacement Considerations

Direct substitutes include other ADUM340E variants such as ADUM340E1WBRWZ for fault-safe high outputs or ADUM340E0BRWZ for narrower packages. Cross-family replacements like ADUM341E require redesigning for unidirectional signals only.

FAQ

What is the typical common-mode transient immunity of the ADUM340E0WBRWZ?

The typical common-mode transient immunity is 180 kV/μs, providing strong resistance to noise spikes.

Does this isolator support bidirectional data transmission?

Yes, the ADUM340E series features fully bidirectional data channels, unlike the unidirectional ADUM341E and ADUM342E models.

What does the '0' suffix indicate regarding the output state?

The '0' suffix specifies a fault-safe low output configuration, ensuring the output defaults to a low logic level during power-down or fault conditions.