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. 02, 2019
Filed:
Jul. 05, 2016
Applicant:
Dialog Semiconductor (Uk) Limited, London, GB;
Inventors:
Assignee:
Dialog Semiconductor (UK) Limited, London, GB;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03G 1/00 (2006.01); H03F 3/387 (2006.01);
U.S. Cl.
CPC ...
H03G 1/0088 (2013.01); H03F 3/387 (2013.01); H03F 3/45475 (2013.01); H03F 3/45928 (2013.01); H03F 3/45977 (2013.01); H03F 2200/381 (2013.01); H03F 2203/45042 (2013.01); H03F 2203/45044 (2013.01); H03F 2203/45074 (2013.01); H03F 2203/45206 (2013.01); H03F 2203/45528 (2013.01); H03F 2203/45534 (2013.01); H03F 2203/45591 (2013.01);
Abstract
An amplifier comprising a differential amplifier configured to be provide a comparator function, and a gain trimming circuit is electrically configured to provide gain trimming using a T-network comprising a varistor element. In addition, a method of trimming the gain of a differential amplifier, comprising the steps of a first step, (a) providing the differential amplifier comprising resistors in both of its paths, a second step, (b) providing a varistor in a T-network between both said paths; and lastly, a third step, (c) trimming the gain of the differential amplifier by adjusting the varistor's resistance.