The disclosure provides a circuit. The circuit includes a first analog to digital converter (ADC) that generates a coarse output in response to a first input and a second input. The first ADC generates the coarse output in a differential phase. A pipeline ADC generates a differential signal in response to the coarse output, the first input and the second input. The pipeline ADC generates the differential signal in a common-mode phase. The first ADC generates a common mode signal in the common-mode phase.