Patent ID: 8829990

Claim:
A method of attenuating non-linear noise in an open-loop amplifier, the method comprising: deriving a first representative signal and a second representative signal from a source signal; obtaining a first intermediate signal by deriving a positive DC-offset from the source signal, and adding the positive DC-offset to the first representative signal; obtaining a second intermediate signal by deriving a negative DC-offset from the source signal, and adding the negative DC-offset to the second representative signal, wherein the negative DC-offset and the positive DC-offset have a same absolute value; deriving a first control signal from the first intermediate signal, and a second control signal from the second intermediate signal; and obtaining an amplified version of the source signal by controlling a first set of switches with the first control signal, and a second set of switches with the second control signal; the method further comprising alternating between: adding the positive DC-offset to the first representative signal while adding the negative DC-offset to the second representative signal; and adding the positive DC-offset to the second representative signal while adding the negative DC-offset to the first representative signal.