ADUM4195-1BRIZ-R7

Overview

The ADUM4195-1BRIZ-R7 is an isolated amplifier based on iCoupler technology, featuring a fixed gain of 1 and single-ended output. It operates with VDD1 and VDD2 supply voltages ranging from 4.5 V to 5.5 V. The device provides a wide input voltage range of 0.25 V to 4.3 V (typical) and supports a bandwidth of 210 kHz. Key electrical specifications include a maximum output offset voltage of ±5 mV at 25°C and a maximum gain error of ±0.5%. It offers high common-mode transient immunity of up to 150 kV/µs and is rated for 5000 V rms isolation. The component functions within an ambient temperature range of −40°C to +125°C.

Feature Summary

• Provides galvanic isolation using coreless transformer-based iCoupler technology for stable transfer function over lifetime and temperature.
• Features very low offset error and drift, ensuring high accuracy in isolated voltage sensing applications.
• Includes a shutdown input pin that forces the output to a high-impedance state when activated.
• Certified for multiple safety standards including UL 1577, IEC/EN/CSA 62368-1, and IEC/CSA 60601-1.

Applications

• Inverter systems
• DC-DC converters
• On-board chargers

Procurement Notes

Verify the specific ordering suffix R7 indicates reel packaging containing 400 units per reel, distinct from the tube-packaged variant. Confirm the absence of the W suffix, which denotes automotive qualification, as this part is standard industrial grade. Ensure compatibility with the EVAL-ADuM4195-1EBZ evaluation board if development support is required. Check for RoHS compliance status indicated by the Z suffix.

Selection Notes

Select this component for applications requiring precise isolated voltage monitoring with minimal signal distortion. The fixed unity gain simplifies design by eliminating external gain-setting resistors. Consider the 210 kHz bandwidth for dynamic signal requirements. Evaluate the 5000 V rms isolation rating against system creepage and clearance needs. Verify that the 4.5 V to 5.5 V dual-supply requirement aligns with available power rails.

Part Context

This part belongs to the ADuM4195 family of isolated amplifiers manufactured by Analog Devices. It utilizes proprietary iCoupler technology to replace traditional optocouplers, offering superior linearity and stability. The family includes variants with different packaging options and automotive qualifications. The BRIZ-R7 designation specifies the 8-lead SOIC package with increased creepage distance and reel packing format.

Replacement Considerations

The ADUM4195-1BRIZ is the tube-packaged equivalent of this reel-part. For automotive applications, consider the ADUM4195-1WBRIZ-R7 variant which shares identical electrical characteristics but meets AEC-Q100 qualification standards. No direct cross-brand replacements are documented in the official datasheet.