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The LMV1088 is a dual-input microphone-array amplifier offered in a miniature 3.5x3.5mm, 36-bump micro SMDxt package. The amplifier draws 1mA of supply current. It has a PSRR (power-supply-rejection ratio) of 85dB at 1kHz, with a typical SNR (signal-to-noise ratio) of 60dB and less than 1% THD+N (A-weighted total harmonic distortion plus noise). The device is designed for use with two microphones in an end-fire array configuration. The microphones can be spaced in a line 1.5 to 2.5cm apart from each other, or the equivalent acoustic-path distance. The optimal distance for the person speaking into the handset or headset microphone is 2 to 10cm. The amplifier's automatic calibration circuitry compensates for the microphones' gain and frequency-response variations, eliminating the need to use expensive matched microphone sets, while allowing flexible placement of the microphones in the final product. The calibration data is stored in the internal EEPROM memory. The calibration sequence chooses the optimised coefficients for the two microphones' spacing and acoustical environment. The amplifier features four I2C-compatible, selectable operating modes: default noise reduction, microphone 1 pass through, microphone 2 pass through or microphone 1 & 2 sum.