Patent ID: 8841962

Claim:
A differential correlated double sampling (CDS) switched capacitor integrator circuit, comprising: a differential amplifier, comprising: a differential input having a negative and a positive input node; a differential output having a negative and a positive output node; a first feedback path between the positive output node and the negative input node, comprising: an integration capacitor; and at least one switch having a parasitic capacitance; a second feedback path between the negative output node and the positive input node, comprising: an integration capacitor; and at least one switch having a parasitic capacitance; a first capacitive element coupled between the negative input node and the negative output node and configured to cancel the parasitic capacitance of the at least one switch of the first feedback path; and a second capacitive element coupled between the positive input node and the positive output node and configured to cancel the parasitic capacitance of the at least one switch of the second feedback path.