A charge detection apparatus may include a radiation sensor having a first electrode and a second electrode for collecting charges of opposite sign and configured to supply to a collecting terminal, connected to the first electrode, a charge signal proportional to an incident radiation. The radiation sensor may define a sensor capacitance associated with the first and the second electrode. The device may also include a charge preamplifier, configured to receive the charge signal and convert it into an electrical output signal, and including an amplifier having a first output terminal. An electrical connection may be included between the first output terminal and the second electrode configured so that the sensor capacitance is in feedback for the amplifier.