AMC1351QDWVRQ1

Overview

The AMC1351QDWVRQ1 is an automotive-grade, precision isolated amplifier featuring a single channel with a fixed gain of 0.4 V/V and a linear input voltage range from -0.25 V to 5 V. It operates on supply voltages between 3 V and 5.5 V for both high-side and low-side circuits. The device provides reinforced galvanic isolation rated at 5000 VRMS per UL1577 and supports a working voltage up to 1500 VRMS. Key electrical characteristics include a maximum offset error of ±1.5 mV, a maximum gain error of ±0.2%, and a minimum common-mode transient immunity of 100 kV/µs.

Feature Summary

• Provides reinforced galvanic isolation certified to DIN VDE V 0884-11 and UL1577 standards for safety-critical applications.
• Features a high-impedance analog input optimized for connection to resistive dividers or high-output-resistance signal sources.
• Includes fail-safe output functionality that activates during undervoltage conditions on the high-side power supply.

Applications

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

Procurement Notes

Verify the specific ordering suffix matches the required package variant and tape-and-reel specifications. Confirm AEC-Q100 qualification status aligns with temperature grade requirements. Ensure design compliance with safety-related certifications such as DIN VDE V 0884-11 for reinforced isolation ratings. Check functional safety documentation availability if system certification is required.

Selection Notes

Select this component when precise DC voltage measurement across high common-mode voltages is necessary. The fixed 0.4 V/V gain suits applications requiring signal attenuation before ADC conversion. Consider the wide-body SOIC-8 package for adequate creepage and clearance distances. Evaluate the 300 kHz bandwidth against system frequency requirements.

Part Context

This part belongs to the AMC1351-Q1 family of automotive precision isolated amplifiers. It utilizes capacitive isolation technology to separate high-voltage input circuitry from low-voltage output stages. The device is designed for robust performance in electric vehicle and industrial power management environments where magnetic interference resistance is critical.

Replacement Considerations

AMC1351DWVRQ1