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:
Jan. 02, 2024
Filed:
Nov. 30, 2021
Applicant:
Analog Devices International Unlimited Company, Limerick, IE;
Inventors:
Assignee:
Analog Devices International Unlimited Company, Limerick, IE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 3/00 (2006.01); H03M 1/18 (2006.01);
U.S. Cl.
CPC ...
H03M 3/464 (2013.01); H03M 1/183 (2013.01); H03M 3/354 (2013.01); H03M 3/424 (2013.01); H03M 3/452 (2013.01); H03M 3/456 (2013.01); H03M 3/458 (2013.01);
Abstract
An apparatus comprises a sigma-delta analog-to-digital converter (ADC) circuit configured to convert an analog input signal to a digital value. The sigma-delta ADC circuit includes a loop filter circuit including at least one loop filter amplifier, a flash ADC circuit including multiple comparators, and a bias control circuit configured to change a biasing of the at least one loop filter amplifier according to outputs of the multiple comparators of the flash ADC circuit.