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:
Dec. 06, 2022
Filed:
Jan. 31, 2022
Nxp B.v., Eindhoven, NL;
Ricardo Pureza Coimbra, Campinas, BR;
Mateus Ribeiro Vanzella, Campinas, BR;
Luis Enrique Del Castillo, Campinas, BR;
NXP B.V., Eindhoven, NL;
Abstract
A sample and hold circuit configured to sample a current includes an input node to receive the current, a capacitor coupled with a sampling node and a reference voltage node, switch between the input node and the sampling node, a controlled current source coupled to the input node, a current mirror circuit having connections each providing a mirrored current, wherein at least one of said connections provides an output node, and a transistor arrangement. The transistor arrangement includes a control MOSFET in series with a series connected chain of cascaded cells. The control MOSFET and each of said cascaded cells are coupled to the current mirror circuit and each of the cascaded cells includes a pair of MOSFETs arranged to provide a voltage difference including a difference between a gate-source voltage of a first of the pair and a gate-source voltage of a second of the pair.