Amplifier circuit

An amplifier circuit comprising:

• a first amplifier circuit input terminal;
• a second amplifier circuit input terminal;
• a first amplifier circuit output terminal;
• a second amplifier circuit output terminal;
• an amplifier stage comprising:
• a first amplifier stage input terminal;
• a second amplifier stage input terminal;
• a first amplifier stage output terminal;
• a second amplifier stage output terminal;
• wherein the first amplifier stage output terminal is connected to the first amplifier circuit output terminal and the second amplifier stage output terminal is connected to the second amplifier circuit output terminal;
• a first-stage residue-reduction storage unit and a final-stage residue-reduction storage unit, each respectively comprising:
• a first capacitor that is connected to the first amplifier stage input terminal;
• and
• a second capacitor that is connected to the second amplifier stage input terminal,
• wherein each of the first capacitor and the second capacitor comprises a first plate and a second plate;
• and
• a switching network that is operable to control the amplifier circuit according to the following operational configurations:
• a first residue-reduction configuration, in which:
• the first amplifier circuit input terminal is not connected to the first amplifier stage input terminal;
• the second amplifier circuit input terminal is not connected to the second amplifier stage input terminal;
• the first amplifier stage output terminal is connected to the first capacitor of the first-stage residue-reduction storage unit;
• the second amplifier stage output terminal is connected to the second capacitor of the first-stage residue-reduction storage unit;
• the first amplifier stage output terminal is not connected to the first capacitor of the final-stage residue-reduction storage unit;
• and
• the second amplifier stage output terminal is not connected to the second capacitor of the final-stage residue-reduction storage unit;
• a second residue-reduction configuration, in which:
• the first amplifier circuit input terminal is not connected to the first amplifier stage input terminal;
• the second amplifier circuit input terminal is not connected to the second amplifier stage input terminal;
• the first amplifier stage output terminal is not connected to the first capacitor of the first-stage residue-reduction storage unit;
• the second amplifier stage output terminal is not connected to the second capacitor of the first-stage residue-reduction storage unit;
• the first amplifier stage output terminal is connected to the first capacitor of the final-stage residue-reduction storage unit;
• and
• the second amplifier stage output terminal is connected to the second capacitor of the final-stage residue-reduction storage unit;
• and
• an operational configuration, in which:
• the first amplifier circuit input terminal is connected to the first amplifier stage input terminal;
• the second amplifier circuit input terminal is connected to the second amplifier stage input terminal;
• the first amplifier stage output terminal is not connected to the first capacitor of the first-stage residue-reduction storage unit;
• the second amplifier stage output terminal is not connected to the second capacitor of the first-stage residue-reduction storage unit;
• the first amplifier stage output terminal is not connected to the first capacitor of the final-stage residue-reduction storage unit;
• and
• the second amplifier stage output terminal is not connected to the second capacitor of the final-stage residue-reduction storage unit.