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:
May. 07, 2019
Filed:
Sep. 05, 2018
Texas Instruments Incorporated, Dallas, TX (US);
Amit Kumar Gupta, Frisco, TX (US);
Peng Cao, Richardson, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
An analog-to-digital converter (ADC) device includes a delta-sigma modulator having at least one integrator and a quantizer configured to receive an output of the at least one integrator. The delta-sigma modulator also includes digital-to-analog converter (DAC) capacitor bank, a sampling capacitor bank, and a pre-charge capacitor bank, each selectively coupled to an input node of the at least one integrator. The delta-sigma modulator also includes a pre-charge signal generator coupled to the pre-charge capacitor bank. The pre-charge signal generator is configured to generate a pre-charge signal to charge the pre-charge capacitor bank based at least in part on an output code of the quantizer.