ADUM3152BRSZ

Overview

The ADUM3152BRSZ is a seven-channel digital isolator from Analog Devices, designed specifically for SPI interface applications. It operates within a supply voltage range of 3 V to 5.5 V and provides an isolation voltage of 3750 Vrms using magnetic coupling technology. The device supports data rates up to 34 Mbps with a maximum propagation delay of 14 ns. It features four high-speed unidirectional channels and three lower-speed bidirectional channels, all housed in a 20-lead SSOP package suitable for surface mount installation.

Feature Summary

• Integrates seven isolated channels optimized for SPI communication protocols
• Utilizes on-chip dual transformer technology for reliable magnetic signal coupling
• Provides high common-mode transient immunity to protect sensitive circuitry
• Supports both unidirectional and bidirectional data transmission modes

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment with strict safety isolation requirements
• Power metering and energy monitoring interfaces
• Inverter control circuits in motor drives

Procurement Notes

Verify the specific suffix BRSZ to confirm the SSOP-20 package and reel quantity. Confirm RoHS compliance status through official manufacturer documentation before integration. Check for current availability as distribution may vary by region. Ensure ESD handling procedures are followed during assembly due to moisture sensitivity classification.

Selection Notes

Select this component when seven isolated channels are required for SPI-based architectures. Compare against ADUM3150 or ADUM3153 variants if channel count or directionality differs. Consider the 3750 Vrms isolation rating for safety-critical designs. Evaluate power consumption at 3 V versus 5 V operation to meet system efficiency targets.

Part Context

This part belongs to the ADuM315x family of SPI isolators from Analog Devices. These devices replace traditional optocouplers by offering higher speed, lower power consumption, and better reliability. The family includes variants with different channel counts and directionality configurations to suit various interface needs.

Replacement Considerations

Direct substitutes include ADUM3150BRSZ and ADUM3153BRSZ from the same manufacturer. Verify pin compatibility and electrical specifications before substitution. Alternative families may require schematic redesign due to differing channel counts or isolation ratings.