AMC1300BQDWVRQ1

Overview

The AMC1300BQDWVRQ1 is an automotive-grade precision isolated amplifier with a ±250-mV input range and fixed gain of 8.2 V/V. It features reinforced galvanic isolation certified to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 standards, supporting up to 5000 VRMS working voltage. The device operates on 3-V or 5-V supplies on both high-side and low-side domains. Key electrical characteristics include a maximum offset error of ±0.2 mV, gain error of ±0.3%, and common-mode transient immunity of 100 kV/µs. It provides fail-safe output functionality and meets CISPR-11 and CISPR-25 EMI standards.

Feature Summary

• AEC-Q100 qualified for automotive applications across the –40°C to +125°C temperature range
• Reinforced isolation barrier certified for safety-related applications per international standards
• Low DC errors including minimal offset drift and nonlinearity for precise current sensing
• Integrated missing-shunt and missing high-side supply detection for system diagnostics

Applications

• Shunt-resistor-based current sensing in HEV/EV charging piles
• Current monitoring in HEV/EV onboard chargers (OBC)
• Isolated feedback in HEV/EV DC/DC converters
• Traction inverter control systems

Procurement Notes

Verify that the ordering suffix QDWVR corresponds to the SOIC-8 package and tape-and-reel delivery format. Confirm AEC-Q100 Grade 1 qualification status matches specific project requirements. Ensure design compliance with the specified safety limiting values for thermal management. Check for functional safety documentation availability if ISO 26262 compliance is required.

Selection Notes

Select this component when reinforced isolation certification is mandatory for safety-critical automotive circuits. The fixed 8.2 V/V gain suits direct shunt resistor interfaces without external scaling resistors. Consider the 100 kV/µs CMTI rating for noisy power electronics environments. Evaluate the 310 kHz bandwidth against signal frequency requirements for dynamic current control loops.

Part Context

This part belongs to the AMC1300B-Q1 family of precision isolated amplifiers designed specifically for automotive powertrain and charging applications. It shares architectural similarities with standard industrial variants but includes extended temperature ranges and automotive reliability testing. The device integrates capacitive isolation technology within a compact SOIC-8 package to minimize board space while maintaining high isolation voltages.

Replacement Considerations

AMC1300BDWVRQ1