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.

Date of Patent:
Oct. 08, 2019

Filed:

Aug. 02, 2018
Applicant:

Analog Devices Global Unlimited Company, Hamilton, BM;

Inventors:

Frederick Carnegie Thompson, Foynes, IE;

Riccardo Tonietto, Valencia, ES;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/40 (2006.01); H03M 1/44 (2006.01); H03F 3/45 (2006.01); H02M 3/07 (2006.01); H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45179 (2013.01); H02M 3/07 (2013.01); H03M 1/403 (2013.01); H03M 1/442 (2013.01); H03M 3/458 (2013.01); H03F 2203/45084 (2013.01);
Abstract

An 'all-digital' operational amplifier architecture, that does not have the constraint of maintaining devices in their saturation region, can leverage the high speed achievable by deeply scaled technology to replace traditional linear current referenced continuous-time operational amplifier circuits with CMOS-like dynamic circuits that require no referencing structure, have no static power consumption, and are compatible with ultra-low supply voltages. Techniques are described to replace analog continuous-time linear operational amplifier input and output stages by a discrete-time comparator circuit, e.g., CMOS-style, and a switched capacitor charge pump circuit, respectively.


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