AMC1311BQDWVRQ1

Overview

The AMC1311BQDWVRQ1 is a precision isolated amplifier from the AMC1311 series, designed for automotive applications. It features galvanic isolation with an insulation voltage of 5000 Vrms and a 3dB bandwidth of 220 kHz. The device operates on a single supply voltage ranging from 3 V to 5.5 V, consuming 9.7 mA of operating current. Key electrical specifications include a low input bias current of 15 nA, a maximum gain error of 0.04%, and a power supply rejection ratio (PSRR) of -65 dB. It supports an output current of 13 mA per channel and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides high-precision signal amplification with integrated galvanic isolation for safety-critical environments.
• Optimized for automotive use with AEC-Q100 qualification and extended industrial temperature capability.
• Delivers accurate measurement performance through low offset voltage and minimal gain error characteristics.

Applications

• Automotive battery management systems
• Current sensing in electric vehicle inverters
• Motor control drive circuits

Procurement Notes

Verify the specific suffix Q1 indicates automotive grade qualification when sourcing. Confirm the VR packaging type matches your assembly requirements. Ensure compatibility with the AMC1311EVM development kit for initial validation. Check datasheet revisions for any updates to mechanical dimensions or thermal characteristics before finalizing design integration.

Selection Notes

Select this component when high accuracy is required in noisy automotive environments. The 2-V input range suits direct connection to shunt resistors. Compare against standard ISO series isolators if analog signal conditioning is needed rather than digital transmission. Consider the SOIC-8 package constraints for PCB layout and thermal dissipation limits during selection.

Part Context

This part belongs to Texas Instruments' AMC1311 family of precision isolated amplifiers. It shares architectural similarities with the AMC1311Q variant but differs in input offset voltage specifications and supply voltage ranges. The B-grade designation typically denotes tighter offset performance compared to other variants in the same series.

Replacement Considerations

AMC1311BQDWVQ1 serves as a tube-packaged alternative within the same functional family. Verify pinout compatibility and thermal performance when substituting between reel and tube packages. No direct cross-brand replacements are documented in official sources.