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:
Apr. 07, 2020
Filed:
Nov. 28, 2018
Applicant:
Nxp B.v., Eindhoven, NL;
Inventors:
Sushil Kumar Gupta, Bangalore, IN;
Hitesh Kumar Garg, Bangalore, IN;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/02 (2006.01); H03K 5/24 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0205 (2013.01); H03F 3/45475 (2013.01); H03K 5/24 (2013.01); H03F 2200/129 (2013.01);
Abstract
A preamplifier circuit includes a first transconductor and a floating transconductor. The first transconductor receives a differential voltage from a sample-and-hold circuit and drives the floating transconductor. The first and floating transconductors output amplified versions of the differential voltage that are not affected by capacitive division, which makes the preamplifier circuit fast. The preamplifier circuit also has a low input capacitance because the floating transconductor is not connected to any external circuitry.