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:
Feb. 05, 2019
Filed:
Nov. 01, 2016
Jeremy R. Gorbold, Newbury, GB;
Christian Steffen Birk, Bandon, IE;
Gerard Mora Puchalt, Catarroja, ES;
Colin Charles Price, Berks, GB;
Michael C. W. Coln, Lexington, MA (US);
Mahesh Madhavan Kumbaranthodiyil, Kerala, IN;
Jeremy R. Gorbold, Newbury, GB;
Christian Steffen Birk, Bandon, IE;
Gerard Mora Puchalt, Catarroja, ES;
Colin Charles Price, Berks, GB;
Michael C. W. Coln, Lexington, MA (US);
Mahesh Madhavan Kumbaranthodiyil, Kerala, IN;
Analog Devices Global, Hamilton, BM;
Abstract
An analog multiplexer may be used for sampling an input voltage that is capable of having a higher voltage level than an upper supply voltage. The analog multiplexer includes a plurality of input switch circuits and a shorting switch circuit. The plurality of input switch circuits include n-type or p-type laterally diffused field effect transistors (NLDFETs or PLDFETs). At least one of the input switch circuits includes a level shifting switch circuit that is able to sample an input voltage that is greater than the upper supply voltage for the multiplexer. A shorting switch circuit, at an output of the multiplexer, includes a capacitively coupled gate drive circuit and is configured to short a first differential output to a second differential output after the input voltage is sampled.