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:
May. 23, 2023

Filed:

Jun. 17, 2021
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Charles Parkhurst, Murphy, TX (US);

Gabriel Eugenio De La Cruz Hernandez, Richardson, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03F 1/34 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45269 (2013.01); H03F 2200/261 (2013.01);
Abstract

A two-stage differential amplifier with cross-coupled compensation capacitors. The differential amplifier includes first amplifier circuitry receiving a differential input voltage and presenting first and second intermediate outputs. The amplifier further includes a second amplifier stage with a first leg having an input coupled to the second intermediate output of the first amplifier circuitry, and a second leg having an input coupled to the first intermediate output of the first amplifier circuitry. A compensation capacitor is provided for each leg of the second amplifier stage, each coupled between the output of that amplifier leg and its input. A first cross-coupled capacitor is coupled between the output of the first amplifier leg to the input of the second amplifier leg, and a second cross-coupled capacitor is coupled between the output of the second amplifier leg and the input of the first amplifier leg.


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