ADUM341E1BRQZ-RL7

Overview

The ADUM341E1BRQZ-RL7 is a quad-channel digital isolator from Analog Devices, utilizing iCoupler technology with magnetic coupling. It features a 3:1 channel configuration (three forward, one reverse) and supports unidirectional data transmission at rates up to 150 Mb/s. The device operates on supply voltages between 2.25 V and 5.5 V, drawing typical currents of 6.7 mA and 7.9 mA per side. It offers high insulation ratings of 3 kVrms basic and 5.7 kVrms reinforced isolation. Key electrical parameters include a typical propagation delay of 6.2 ns, pulse width of 6.6 ns, and pulse width distortion of 0.3 ns. It functions within a temperature range of -40°C to +125°C in a QSOP-16 package.

Feature Summary

• Integrates four independent digital channels using monolithic air-core transformer technology for robust signal isolation.
• Provides enhanced safety ratings with 5.7 kVrms reinforced insulation voltage capability.
• Features low dynamic power consumption and tight channel-to-channel matching for precise timing applications.
• Includes fault-safe logic options ensuring defined output states during power loss or input failure.

Applications

• Isolation for Serial Peripheral Interface (SPI) communication lines
• Signal isolation for industrial fieldbus systems
• Data converter interface isolation
• PWM controller signal isolation in motor drives

Procurement Notes

Verify the specific suffix 'RL7' indicates reel packaging when ordering. Confirm that the 'E1' designation corresponds to the fault-safe high logic level requirement for your design. Ensure the QSOP-16 footprint matches your PCB layout constraints. Check current availability status as distribution may vary by region. Validate compliance requirements such as RoHS and AEC-Q100 if applicable to your industry standards.

Selection Notes

Select this component when a 3:1 unidirectional isolation ratio is required within a single package. It is suitable for designs needing high-speed data rates up to 150 Mb/s with minimal skew. Consider this part for space-constrained applications due to its dense 16-pin QSOP form factor. Ensure the system voltage range aligns with the 2.25 V to 5.5 V operating specification. Verify that the thermal dissipation capabilities meet the ambient temperature conditions of the final assembly.

Part Context

This device belongs to the ADuM34x series of quad-channel digital isolators. It shares the same core iCoupler architecture and pinout compatibility with variants like ADUM340E and ADUM342E, differing primarily in channel directionality and logic state defaults. The series is designed for general-purpose multi-channel isolation needs in industrial and automotive environments.

Replacement Considerations

Direct functional substitutes include ADUM340E1BRQZ-RL7 and ADUM342E1BRQZ-RL7, which share identical pinouts and specifications but differ in channel configuration (4:0 or 2:2). Cross-referencing datasheets is essential to confirm channel directionality matches the circuit design requirements.