Patent ID: 8779963

Claim:
A pipeline analog-to-digital converter (ADC) comprising: a first conversion stage of the pipeline ADC that receives an input signal and that comprises in a first signal path: a first ADC that converts the input signal, a first digital-to-analog converter (DAC) that converts an output of the first ADC, a first subtractor that subtracts an output of the first DAC from the input signal, and a first amplifier that amplifies an output of the first subtractor and generates a first residue of the first conversion stage; and in a second signal path: a second DAC that converts the output of the first ADC, a second subtractor that subtracts an output of the second DAC from the input signal, and a second amplifier that amplifies an output of the second subtractor and generates a second residue of the first conversion stage; and a control module that selectively enables and disables the second path.