Patent ID: 7714634

Claim:
A pseudo-differential active RC integrator with common-mode feedback, comprising: a first branch configured to receive a first component of a differential input signal and produce a first component of a differential output signal, the first branch comprising: a first resistor; a first virtual ground node; a first transistor including a first terminal configured to receive the first component of the differential input signal via the first resistor and including a second terminal configured to produce the first component of the differential output signal; and a first transconductor coupled to the first virtual ground node; a second branch configured to receive a second component of the differential input signal and produce a second component of the differential output signal, the second branch comprising: a second resistor; a second virtual ground node; a second transistor including a first terminal configured to receive the second component of the differential input signal via the second resistor and including a second terminal configured to produce the second component of the differential output signal; and a second transconductor coupled to the second virtual ground node; and a common-mode feedback subcircuit coupled to the first transconductor and the second transconductor and configured to adjust a common-mode output signal of the pseudo-differential active RC integrator.