A breather and separator assembly for an engine. The DSLAM connects to a plurality of CPE devices on one end and to a high speed Ethernet link on the other. xTiO2, has a molar ratio x of TiO2 to BaO of 4. Two units of the differential amplifier are connected in parallel, with the input terminals cross-coupled with each other, thereby constructing a differential amplifier of the completely differential type.