Patent ID: 7034737

Claim:
A switched capacitor circuit, comprising: a first switched capacitor network operative to output a first input signal; a second switched capacitor network operative to output a second input signal; and an amplifier circuit coupled to a voltage source, comprising: a first output terminal and a second output terminal; a first transistor having a first control gate coupled to the first switched capacitor network, a first first terminal coupled to the first output terminal, and a first second terminal; a second transistor having a second control gate coupled to the first switched capacitor network, a second first terminal coupled to the second output terminal, and a second second terminal; a third transistor having a third control gate coupled to the second switched capacitor network, a third first terminal coupled to the first output terminal, and a third second terminal; a fourth transistor having a fourth control gate coupled to the second switched capacitor network, a fourth first terminal coupled to the second output terminal, and a fourth second terminal; a first switch coupled to a first connection point of the first second terminal and the second second terminal; and a second switch coupled to a second connection point of the third second terminal and the fourth second terminal.