Signal transfer system using a charge transfer device

Details Signal transfer system using a charge transfer device Signal transfer system using a charge transfer device

H - Electricity

01

L

333/34

H01L 29/76 (2006.01) G11C 19/28 (2006.01) H03H 11/26 (2006.01)

Patent

CA 1210097

ABSTRACT OF THE DISCLOSURE A charge transfer device has one or more charge injection areas each having an input diffusion layer and two or more input gate electrodes. An input signal is applied to the input diffusion layer, a clock voltage is applied to one of the input gates and an input reference voltage is applied to the other input gate to inject a signal charge proportional to a difference between the input reference voltage and the input signal, and the signal charge is sequentially transferred. A magnitude of the input reference voltage is changed in accordance with a magnitude of a maximum value of the input signal so that transfer of charges which do not contribute to signal component is suppressed and a transfer efficiency is improved.

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