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.