The LMV1012 is aimed at 2-wire ECMs. The built-in gain of 17dBV has been optimised for handset microphones. Additional benefits of the LMV1012 are improved RF immunity and low distortion. New ECMs using the LMV1012 offer THD of 0.1%, SNR greater than 55dB and supply current less than 240microA. The LMV1014 is an amplifier for 3-wire, low current and low noise ECMs. This product draws a supply current of less than 40microA while providing a low output impedance of 200Ohms. The LMV1014 provides a high power supply rejection ratio greater than 60dB and an SNR of greater than 55db.