The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2017
Filed:
Oct. 07, 2015
Sony Semiconductor Solutions Corporation, Atsugi-Shi, JP;
Noam Eshel, Pardesia, IL;
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Abstract
A sample-and-hold circuit having an error correction circuit portion that compensates for charge injection and noise. The error correction circuit portion includes an error-current-accumulating capacitor and a feedback circuit. The error-correction circuit performs error correction during a sampling operation by accumulating, at the error-current-accumulating capacitor, an error current output from an amplifier of the sample-and-hold circuit, and then applying, via the feedback circuit, a voltage boost to an input of the amplifier. The magnitude of the voltage boost depends on a voltage of the error-current-accumulating capacitor, and on various design parameters of the components of the circuit. By appropriately setting the design parameters, the magnitude of the fed-back voltage boost can be made to cancel out error due to charge injection and noise.