AMPLIFIER WITH ADAPTABLE FEEDBACK
An amplifier (3) for amplifying an electrical input signal (Vin) is provided. This amplifier (3) comprises at least one amplifier stage (31, 32, 33) and at least one feedback loop (34, 35, 36), which comprises a variable feedback loop element (37, 38, 39). Each feedback loop (34, 35, 36) is adapted to feed back a feedback signal from an output of the at least one amplifier stage (31, 32, 33) to an earlier stage of amplification within the amplifier (3). Each feedback loop (34, 35, 36) therein has a time constant. Said time constant has a first value during a first operation mode. Moreover, the amplifier (3) comprises a time constant modifier (40), which is adapted to modify a value of the variable feedback loop element (37, 38, 39), thereby modifying the time constant of the at least one feedback loop (34, 35, 36) to a second value, during a second operation mode.