MEMS microphones are the most advantageous solution in audio applications. To minimize the size of their package, scaled technologies are needed to build their readout, but that introduces critical aspects in analog cells design. This paper presents an analog interface for MEMS microphones, based on a pseudo-differential cascode flipped voltage follower topology, built in 55nm CMOS technology, with NMOS input devices, which improves noise and distortion performances respect to current solutions. The circuit features an A-weighted output integrated noise in audio frequency range of -112dBV(A) and an AOP of 133dBspl, consuming less than 225μW at 1.5V.