Patent ID: 7880653

Claim:
An integrator system comprising: a differential amplifier comprising a first differential input that includes a first amplifier input terminal and a second amplifier input terminal; a first sampling module operatively coupled to the first amplifier input terminal and to the second amplifier input terminal, wherein the first sampling module includes a first capacitor and a first set of switches, wherein the first set of switches is configured to change a connection status between the first capacitor and the first and second amplifier input terminals of the differential amplifier when a change in a polarity of a differential input signal does not occur between consecutive switching cycles, and to refrain from changing the connection status between the first capacitor and the first and second amplifier input terminals when the change in the polarity of the differential input signal does occur between the consecutive switching cycles; and a second sampling module operatively coupled to the first amplifier input terminal and to the second amplifier input terminal, wherein the second sampling module includes a second capacitor and a second set of switches, wherein the second set of switches is configured to change a connection status between the second capacitor and the first and second amplifier input terminals when the change in the polarity of the differential input signal does occur, and to refrain from changing the connection status between the second capacitor and the first and second amplifier input terminals when the change in the polarity of the differential input signal does not occur.