Patent ID: 7737777

Claim:
An amplifier system comprising: a first amplifier stage having an input and an output; a second amplifier stage having an input and an output, the input of the second amplifier stage being connected to the output of the first amplifier stage; a transistor having a control terminal, a first terminal, and a second terminal, the first terminal of the transistor being coupled to the output of the first amplifier stage and the input of the second amplifier stage; a first capacitance having a first terminal and a second terminal, the first terminal of the first capacitance being connected to the input of the first amplifier stage, the second terminal of the first capacitance being connected to the second terminal of the transistor; a first current source to source current to amplifier system, the first current source being connected to the output of the first amplifier stage; and a second current source to sink current from the amplifier system, the second current source being connected to the second terminal of the first capacitance and the second terminal of the transistor.