AMC1350QDWVRQ1

Overview

The AMC1350QDWVRQ1 is an automotive-grade, precision isolated amplifier featuring a ±5-V linear input range and a fixed gain of 0.4 V/V. It provides reinforced galvanic isolation certified to 5 kVrms per UL1577 and DIN VDE V 0884-11, supporting a working voltage of up to 1.5 kVrms. The device operates on dual 3.3 V or 5 V supplies with low DC errors, including a maximum offset error of ±1.5 mV and gain error of ±0.2%. It delivers high common-mode transient immunity of 100 kV/μs and includes fail-safe output functionality.

Feature Summary

• Reinforced galvanic isolation barrier certified for safety-related applications
• High input impedance optimized for resistive dividers and high-output resistance sources
• Fail-safe output mechanism activates during supply undervoltage conditions
• AEC-Q100 qualified for operation in temperature grades ranging from -40°C to +125°C

Applications

• Isolated voltage sensing in traction inverters
• Voltage monitoring in onboard chargers (OBC)
• Isolation in DC/DC converters
• Voltage sensing in HEV/EV DC chargers

Procurement Notes

Verify the specific ordering suffix matches the required package and tape/reel configuration. Confirm that the AEC-Q100 qualification grade aligns with the target automotive application requirements. Ensure design compliance with the specified insulation specifications and safety limiting values provided in the datasheet. Check for any recent product change notifications regarding assembly sites or material updates.

Selection Notes

Select this component when precise measurement of high common-mode voltages is required in electric vehicle systems. The fixed 0.4 V/V gain suits applications where signal attenuation is necessary before ADC conversion. The wide-body SOIC-8 package facilitates adequate creepage and clearance distances for high-voltage isolation standards. Consider the 300 kHz bandwidth and low noise characteristics for dynamic signal processing needs.

Part Context

This part belongs to the AMC1350-Q1 family of precision isolated amplifiers designed specifically for automotive environments. It utilizes delta-sigma modulation technology to transfer analog signals across the isolation barrier while rejecting magnetic interference. The family supports various gain configurations and input ranges to accommodate different sensor interfaces and system architectures.

Replacement Considerations

AMC1350DWVRQ1