1. An input stage for an A/D converter of differential analog signals, the input stage comprising a transconductance element adapted to receive, at a first input of the transconductance element, an analog input signal of the differential analog signals that is to be converted to a digital signal by the A/D converter, a feedback path for providing an analog feedback signal to a second input of the transconductance element, the analog feedback signal being based on a digital output signal of the A/D converter, an integrator for integrating an output current of the transconductance element, wherein the integrating element is adapted to generate an integrator output signal representative of the integrated output current, a further transconductance element adapted to receive, at a first input of the further transconductance element, the other analog input signal of the differential analog signals, and a further feedback path for providing a further analog feedback signal to a second input of the further transconductance element, the further analog feedback signal being based on the digital output signal of the A/D converter, wherein the integrator is adapted to integrate a sum of the output current of the transconductance element and the output current of the further transconductance element, and wherein the integrator output signal is representative of the integrated sum of output currents.