Charge transfer device

Details Charge transfer device Charge transfer device

G - Physics

11

C

352/82.2

G11C 27/04 (2006.01) G11C 19/28 (2006.01) H01L 29/78 (2006.01)

Patent

CA 1249059

12 ABSTRACT: Charge transfer device. The invention relates to a charge-coupled device, in which the reset transistor of the output is clocked - with a positive threshold voltage - by a maximum voltage equal to the supply voltage VDD. The drain (14) of the reset transistor is adjusted by means of an auxiliary transistor (T1) controlled by a current source (T2) and having the same threshold voltage, whose gate (21) is applied to VDD and whose source (22) is connected to the drain (14) of the reset transistor. Due to the fact that the maximum gate voltage is equal to VDD, additional voltage sources, such as charge pumps, for generating voltages higher than VDD are superfluous. Fig. 3.

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