LMV1015

LMV1015 Analog Series Built-in Gain IC’s for High Sensitivity 2-Wire Microphones May 2005 LMV1015 Analog Series: Built-in Gain IC’s for High Sensitivity 2-Wire Microphones General Description The LMV1015 is an audio amplifier series for small form factor electret microphones. This 2-wire portfolio is designed to replace the JFET amplifier. The LMV1015 series is ideally suited for applications requiring high signal integrity in the presence of ambient or RF noise, such as in cellular comwww.DataSheet4U.com munications. The LMV1015 audio amplifiers are guaranteed to operate over a 2.2V to 5.0V supply voltage range with fixed gains of 15.6 dB and 23.8 dB. The devices offer excellent THD, gain accuracy and temperature stability as compared to a JFET microphone. The LMV1015 series enables a two-pin electret microphone solution, which provides direct pin-to-pin compatibility with the existing older JFET market. National Semiconductors built-in gain families are offered in extremely thin space saving 4-bump micro SMD packages (0.3 mm maximum). The LMV1015XR is designed for 1.0 mm ECM canisters and thicker. These extremely miniature packages have the Large Dome Bump (LDB) technology. This micro SMD technology is designed for microphone PCBs requiring 1 kg adhesion criteria. Features (Typical LMV1015-15, 2.2V supply, RL = 2.2 kΩ, C = 2.2 µF, VIN = 18 mVPP, unless otherwise specified) n Supply voltage 2V - 5V < 180 µA n Supply current n Signal to noise ratio (A-weighted) 60 dB n Out...