ADUM342E1BRQZ-RL7

Overview

The ADUM342E1BRQZ-RL7 is a quad-channel digital isolator from Analog Devices, utilizing magnetic coupling technology for signal transmission. It features a 2:2 channel configuration with unidirectional data flow and supports data rates up to 150 Mb/s. The device operates within a supply voltage range of 2.25 V to 5.5 V and draws a typical operating current of 7.3 mA. It provides insulation voltages of 3 kVrms and 5.7 kVrms, ensuring robust isolation performance. Key timing parameters include a propagation delay of 6.2 ns and pulse width distortion of 0.3 ns. The component functions reliably across an extended temperature range from -40°C to +125°C and is housed in a QSOP-16 package.

Feature Summary

• Implements magnetic coupling technology for high-speed digital signal isolation without optical components.
• Provides bidirectional physical layout flexibility through a 2:2 channel architecture supporting four independent isolation barriers.
• Delivers precise signal integrity with low propagation delay and minimal pulse width distortion for accurate data transmission.
• Ensures reliable operation in harsh environments with extended industrial temperature ratings and high insulation voltage capabilities.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing galvanic isolation for patient safety
• Power electronics control circuits demanding high-voltage separation
• Automotive electronic modules requiring robust signal isolation

Procurement Notes

Verify the specific suffix 'RL7' indicates reel packaging when sourcing. Confirm that the QSOP-16 package matches your PCB footprint requirements. Check for RoHS compliance status as indicated in official documentation. Ensure the unidirectional polarity aligns with your circuit design needs. Validate the insulation voltage ratings against your system's isolation requirements before finalizing procurement.

Selection Notes

Choose this component when high-speed data isolation is required with minimal skew. The 150 Mb/s rate suits most standard industrial protocols. Consider the 7.3 mA current consumption for power-sensitive designs. The 3 kVrms and 5.7 kVrms ratings offer flexibility for various isolation standards. Ensure the unidirectional nature fits your signal flow direction. The QSOP-16 package is suitable for surface-mount assembly processes.

Part Context

This part belongs to the ADUM342 series of digital isolators from Analog Devices. It represents a magnetic coupling-based solution distinct from capacitive or optical alternatives. The series focuses on providing robust isolation with high reliability. The E1 variant specifies particular insulation and performance characteristics within the family. It serves as a critical component for breaking ground loops in mixed-signal systems.

Replacement Considerations

Direct substitutes may include other ADUM342 variants with different packaging or insulation ratings. Verify compatibility regarding channel count, data rate, and polarity. Cross-reference with ADUM342E0BRQZ-RL7 for bidirectional options. Check ADUM142E1BRQZ-RL7 for similar performance with different voltage specs. Always confirm pinout and electrical parameters match before substitution.