ADUM4152BRIZ

Overview

The ADUM4152BRIZ is a seven-channel digital isolator from Analog Devices, designed specifically for SPI interface applications. It integrates four high-speed signal isolation channels and three data channels supporting up to 17 MHz SPI clock speeds. The device utilizes ICoupler technology for magnetic coupling isolation with a rated insulation voltage of 5000 Vrms. It operates within a supply voltage range of 3 V to 5.5 V and features a propagation delay of 16 ns. The component is housed in a 20-lead SOIC package and supports operation across an extended temperature range from -40°C to +125°C.

Feature Summary

• Optimized for SPI communication with dedicated directionality control for auxiliary channels
• Provides high-voltage isolation between system domains using magnetic coupling technology
• Integrates multiple channel types including high-speed signals and lower-speed data lines

Applications

• Isolating SPI master devices from slave peripherals in industrial systems
• Signal isolation in multi-drop SPI networks requiring galvanic separation
• Protecting low-voltage control logic from high-voltage power stages

Procurement Notes

Verify the specific suffix 'BRIZ' against official Analog Devices documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with required operating temperatures and supply voltages. Cross-reference pinouts with the latest datasheet to prevent integration errors during PCB layout. Confirm regulatory compliance status such as RoHS if required by your manufacturing standards.

Selection Notes

Select this component when SPI protocol isolation is required with mixed speed channel needs. It is suitable for designs needing both high-speed clock isolation and slower data line separation. Consider the 20-lead SOIC footprint for space-constrained layouts. Evaluate CMTI requirements if driving noisy environments, though specific values are not detailed here.

Part Context

This part belongs to the ADUM4152 family of SPIsolator digital isolators. It complements other ADUM series components like the ADUM4122 gate drivers and ADUM4138 IGBT drivers by providing specialized communication isolation rather than power stage driving capabilities.

Replacement Considerations

Check for direct substitutes within the ADUM415x family or compatible SPI isolators from Analog Devices. Verify pin-to-pin compatibility and electrical specifications before substitution.