FEATURES

• Typical LMV1012-15, 2.2V Supply, RL = 2.2 kΩ,

C = 2.2 μF, V IN = 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

APPLICATIONS

• Cellular Phones

• Headsets

• Mobile Communications

• Automotive Accessories

• PDAs

• Accessory Microphone Products

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.