Patent ID: 7352243

Claim:
A differential amplifier comprising: an input differential stage having first and second differential pairs of first and second-conductive types, which are driven by first and second current sources, respectively, and to which a differential input signal is inputted; a folded cascode-type differential stage electrically connected as a load of differential outputs of said first and second differential pairs, the folded cascade-type differential stage generating folded differential outputs; and first and second current mirror circuits of first and second-conductive types connected to first and second power sources, respectively, the folded differential outputs being connected to respective inputs of the first and second current mirror circuits, outputs of the first and second current mirror circuits being connected in common to an output terminal; wherein neither of the differential outputs and neither of the folded differential outputs is connected between the first mirror circuit and the first power source, and neither of the differential outputs and neither of the folded differential outputs is connected between the second mirror circuit and the second power source.