Patent ID: 8933754
Filing Date: 2015-01-13
Classification: H03F

Abstract:
1. A differential amplifier with an amplifier circuit comprising two differential pairs, wherein a first differential pair is connected in series to a second differential pair, wherein the second differential pair is connected at control terminals in a crosswise manner at least indirectly to a differential output signal of the first differential pair, wherein the first differential pair and the second differential pair form a first differential current path and a second differential current path, wherein a first emulation device is connected in parallel to the first current path, and that a second emulation device is connected in parallel to the second current path, wherein the first emulation device emulates the current flow through the first current path, wherein the second emulation device emulates the current flow through the second current path, wherein the first current path is supplied at a current input with a first partial signal of the differential input signal, wherein the second current path is supplied at a control input with a second partial signal of the differential input signal, wherein the first emulation device is supplied at a first control input with the second partial signal of the differential input signal, and wherein the second emulation device is supplied at a control input with the first partial signal of the differential input signal.