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LMV1031-20 Datasheet Amplifier

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LMV1031-20 Amplifiers for Internal 3-Wire Analog Microphones and External Preamplifier October 2005 LMV1031-20 Amplifier for Internal 3-Wire Analog Microphones and External.

General Description

The LMV1031 audio amplifier is an ideal replacement for the JFET preamplifier that is currently used in the electret microphones.

The LMV1031 is optimized for applications that require extended battery life, such as Bluetooth munication links.

The supply current for the LMV1031 is only 72 µA.

Key Features

  • (Typical LMV1031-20, 2V Supply; Unless Otherwise Noted) n Signal to noise ratio 62 dB n Output voltage noise (A-weighted).
  • 86 dBV n Low supply current 72 µA n Supply voltage 2V to 5V > 100 MΩ n Input impedance n Max input signal 108 mVPP n Output voltage 1.09V n Temperature range.
  • 40˚C to 85˚C n Large Dome 4-Bump micro SMD package with improved adhesion technology.

LMV1031-20 Distributor