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:
Sep. 01, 2020
Filed:
Aug. 20, 2019
Texas Instruments Incorporated, Dallas, TX (US);
Subramanian Jagdish Narayan, Bengaluru, IN;
Chandana Krishna, Bengaluru, IN;
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A multi-stage analog-to-digital converter includes a signal input terminal, a first stage analog-to-digital converter, a digital-to-analog converter; a second stage analog-to-digital converter, and dither circuitry. The first stage analog-to-digital converter includes an input coupled to the signal input terminal. The digital-to-analog converter includes an input coupled to an output of the first stage analog-to-digital converter, and an input coupled to the signal input terminal. The second stage analog-to-digital converter includes a first input coupled to an output of the digital-to-analog converter. The dither circuitry is coupled to a second input of the second stage analog-to-digital converter, and is configured to provide a dither signal to the second stage analog-to-digital converter during selection of fewer than all bits of a digital value of a residue signal received from the digital-to-analog converter.