Patent ID: 7292099

Claim:
An amplifier arrangement, comprising: a first output tap and a second output tap forming a differential output of the amplifier arrangement; a first differential amplifier stage comprising a first controlled path and a first output node, and comprising a second controlled path and a second output node; a second differential amplifier stage comprising a third controlled path and a fourth controlled path, and coupled to the first and second controlled paths of the first differential amplifier stage and to the first and second output nodes of the first differential amplifier stage such that the coupling forms a negative feedback arrangement, the second differential amplifier stage further comprising a first voltage divider connected to the third controlled path and comprising at least two signal taps, and a second voltage divider connected to the fourth controlled path and comprising at least two signal taps; and a switching device connected to the at least two signal taps of the first voltage divider and to the at least two signal taps of the second voltage divider, and configured to selectively connect one of the at least two signal taps of the first voltage divider to the first output tap, and one of the at least two signal taps of the second voltage divider to the second output tap.