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Parameters

Gain range (dB) Fixed Gain, 7.8dB, 15.6dB, 20.9dB, 23.8dB Input voltage noise (Typ) (nV/rtHz) 56 Power supply (Typ) (V) 2 to 5 Iq (Typ) (mA) 0.158, 0.16, 0.188, 0.2 Interface type Analog 3 Wire Operating temperature range (C) -40 to 85 open-in-new Find other Microphone preamplifiers

Package | Pins | Size

DSBGA (YPB) 4 0 mm² .99 x 1.066 DSBGA (YPC) 4 0 mm² .99 x 1.066 open-in-new Find other Microphone preamplifiers

Features

  • Typical LMV1012-15, 2.2V Supply, RL = 2.2 kΩ, C = 2.2 μF, VIN = 18 mVPP, Unless Otherwise Specified
  • Supply Voltage: 2V - 5V
  • Supply Current: <180 μA
  • Signal to Noise Ratio (A-Weighted): 60 dB
  • Output Voltage Noise (A-Weighted): −89 dBV
  • Total Harmonic Distortion: 0.09%
  • Voltage Gain
    • LMV1012-07: 7.8 dB
    • LMV1012-15: 15.6 dB
    • LMV1012-20: 20.9 dB
    • LMV1012-25: 23.8 dB
  • Temperature Range: −40°C to 85°C
  • Offered in 4-Bump DSBGA Packages

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Description

The LMV1012 is an audio amplifier series for small form factor electret microphones. This 2-wire portfolio is designed to replace the JFET amplifier currently being used. The LMV1012 series is ideally suited for applications requiring high signal integrity in the presence of ambient or RF noise, such as in cellular communications. The LMV1012 audio amplifiers are specified to operate over a 2.2V to 5.0V supply voltage range with fixed gains of 7.8 dB, 15.6 dB, 20.9 dB, and 23.8 dB. The devices offer excellent THD, gain accuracy and temperature stability as compared to a JFET microphone.

The LMV1012 series enables a two-pin electret microphone solution, which provides direct pin-to-pin compatibility with the existing JFET market.

The devices are offered in extremely thin space saving 4-bump DSBGA packages. The LMV1012XP is designed for 1.0 mm canisters and thicker ECM canisters. These extremely miniature packages are designed for electret condenser microphones (ECM) form factor.

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Technical documentation

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Type Title Date
* Datasheet LMV1012 Analog Series: Pre-Amplified IC's for High Gain 2-Wire Microphones datasheet (Rev. H) May 02, 2013
White paper Digital Microphones - Applications and System Partitioning Apr. 01, 2003
White paper Integrated Circuits for High Performance Electret Microphones Dec. 01, 2002

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DSBGA (YPB) 4 View options
DSBGA (YPC) 4 View options

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