Title: Preamplifier for analog to digital converters

Abstract: A preamplifier using charge transfer techniques is formed on the same chip as a charge transfer analog to digital converter. The preamplifier then couples low level output sensors directly to the converter without need for a costly interfacing amplifier.

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Inventors: Eichelberger, Charles W. (Schenectady, NY, US)
Butler, Walter J. (Scotia, NY, US)

Application Number: 835068
Filing Date: 1977-09-21
Publication_date: 1979-02-06
Assignee: General Electric Company (Schenectady, NY)
Primary Class(es): 341/136 257/216, 257/235, 330/7, 341/172, 377/42
Other Classes:
US Patent Ref:

4051469	Sep, 1977	Ninomiya	340/347.
4070667	Jan, 1978	Eichelberger	340/347.

Other Refs:
Primary Examiner: Sloyan, Thomas J.
Assistant Examiner:
Attorney: Krauss; Geoffrey H., Cohen; Joseph T., Snyder; Marvin