An image sensor, comprising: - an array comprising rows (51, 52) and columns (71 to 73) of pixels, each pixel comprising a photodiode, a transfer transistor, a sense node coupled to the photodiode via the transfer transistor, a reset transistor and a supply input coupled to the sense node via the reset transistor, - a first number, N, of connection lines (58 to 60) connected to N pixels of the array, wherein the N connection lines (58 to 60) run parallel to N rows (51, 52) of the array, - a voltage regulating circuit having a charge pump with an output that is connected to an output of the voltage regulating circuit, characterized in that the image sensor further comprises: - a first terminal which is coupled to a supply terminal at which a supply voltage is tapped, - a reference potential terminal at which a reference potential can be tapped, and - a row driver circuit having N switches (62 to 64) coupling the N connection lines (58 to 60) to the output of the voltage regulating circuit, and N further switches (67 to 69) coupling the N connection lines (58 to 60) to the first terminal, wherein - N is at least three, - the voltage regulating circuit is configured to generate an output voltage (VOUT) that is negative with respect to the reference potential, - a majority of the N switches (62 to 64) is set in a conducting state at any point in time during operation of the image sensor, and - control terminals of the transfer transistors of the pixels of each row of pixels are connected to a respective one of the N connection lines (58 to 60). - an array comprising rows (51, 52) and columns (71 to 73) of pixels, each pixel comprising a photodiode, a transfer transistor, a sense node coupled to the photodiode via the transfer transistor, a reset transistor and a supply input coupled to the sense node via the reset transistor, - a first number, N, of connection lines (58 to 60) connected to N pixels of the array, wherein the N connection lines (58 to 60) run parallel to N rows (51, 52) of the array, - a voltage regulating circuit having a charge pump with an output that is connected to an output of the voltage regulating circuit, characterized in that the image sensor further comprises: - a first terminal which is coupled to a supply terminal at which a supply voltage is tapped, - a reference potential terminal at which a reference potential can be tapped, and - a row driver circuit having N switches (62 to 64) coupling the N connection lines (58 to 60) to the output of the voltage regulating circuit, and N further switches (67 to 69) coupling the N connection lines (58 to 60) to the first terminal, wherein - N is at least three, - the voltage regulating circuit is configured to generate an output voltage (VOUT) that is negative with respect to the reference potential, - a majority of the N switches (62 to 64) is set in a conducting state at any point in time during operation of the image sensor, and - control terminals of the transfer transistors of the pixels of each row of pixels are connected to a respective one of the N connection lines (58 to 60). - a first terminal which is coupled to a supply terminal at which a supply voltage is tapped, - a reference potential terminal at which a reference potential can be tapped, and - a row driver circuit having N switches (62 to 64) coupling the N connection lines (58 to 60) to the output of the voltage regulating circuit, and N further switches (67 to 69) coupling the N connection lines (58 to 60) to the first terminal, wherein - N is at least three, - the voltage regulating circuit is configured to generate an output voltage (VOUT) that is negative with respect to the reference potential, - a majority of the N switches (62 to 64) is set in a conducting state at any point in time during operation of the image sensor, and - control terminals of the transfer transistors of the pixels of each row of pixels are connected to a respective one of the N connection lines (58 to 60).