LMV1031UR-20

Audio Amplifiers Overview

The LMV1031 is a microphone preamplifier designed for internal 3-wire analog microphones and external preamplifiers. It operates on a single supply voltage ranging from 2 V to 5 V with a typical operating current of 72 uA. The device features a DSBGA-4 package, supports single-ended input and output signals, and offers a power supply rejection ratio (PSRR) of 56 dB. It functions within an industrial temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Designed specifically for interfacing with internal 3-wire analog microphones
• Operates as an electret microphone preamplifier with low power consumption
• Provides single-ended signal processing capabilities

Audio Amplifiers Applications

• Internal 3-wire analog microphone amplification
• External preamplifier circuits
• Portable audio devices requiring low power operation

Audio Amplifiers Procurement Notes

Verify the manufacturer designation carefully, as Texas Instruments acquired National Semiconductor. Ensure the specific suffix matches the required tape-and-reel or cut-tape packaging format. Confirm RoHS compliance status through official documentation before procurement.

Audio Amplifiers Selection Notes

Select this component when designing circuits for 3-wire analog microphones requiring low quiescent current. Verify that the single-supply voltage range of 2 V to 5 V aligns with the system power architecture. Ensure the DSBGA-4 package footprint is compatible with the PCB layout constraints.

Audio Amplifiers Part Context

This component belongs to the LMV1031 series of microphone preamplifiers. It is categorized under audio ICs and is manufactured by Texas Instruments following the acquisition of National Semiconductor. The part is distinct from operational amplifiers in the same family due to its specialized microphone interface design.