Patent ID: 7067792

Claim:
A device for controlling a photosensitive cell comprising a photodiode adapted to discharging into a read node via a MOS transfer transistor, said device being adapted to providing a signal for controlling the gate of the MOS transfer transistor to a first level for which the MOS transfer transistor is off or to a second level for which the MOS transfer transistor is on, and comprising means for providing a control signal having a predefined average slope for a duration of a transition of the control signal between the second level and the first level, and the means further comprises; a MOS transistor of a first conductivity type connected to a voltage source at the second level and to a control line, said control line being connected to the gate of the transfer MOS transistor; and a MOS transistor of a second conductivity type connected to said control line and to a terminal of a constant current source, another terminal of said constant current source being connected to a voltage source at the first level.