Linear ccd input circuit

Details Linear ccd input circuit Linear ccd input circuit

G - Physics

11

C

352/82.21

G11C 11/08 (2006.01) G11C 19/28 (2006.01) H01L 29/768 (2006.01)

Patent

CA 1101994

Abstract of the Disclosure Linear operation of a buried channel charge coupled device (CCD) is obtained by employing a bias charge in the input potential well of the CCD. A charge signal proportional to an input signal is added to the bias charge by the "fill and spill" technique, this charge addition occurring in the linear region of the signal versus generated charge transfer characteristic of the CCD. The charge signal is skimmed from the potential well for propagation down the CCD. The potential well containing the bias charge is of substantially larger capacity than the potential wells of the CCD channel to insure that the latter can be fill to close to their capacity, that is, to obtain wide dynamic range in addition to the linear operation.

293993

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