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. 20, 2022
Filed:
Jun. 10, 2021
Stmicroelectronics International N.v., Geneva, CH;
Vivek Tripathi, Greater Noida, IN;
STMicroelectronics International N.V., Geneva, CH;
Abstract
A quad signal generator circuit generates four 2-1 bit control signals in response to a 2-1 bit thermometer coded signal. A digital-to-analog converter (DAC) circuit has 2-1 unit DAC elements, with each unit DAC element including four switching circuits controlled by corresponding bits of the four 2-1 bit control signals. Outputs of the 2-1 unit DAC elements are summed to generate an analog output signal. The quad signal generator circuit controls a time delay applied to clock signals relative to the 2-1 bit thermometer coded signal and a time delay applied to the 2-1 bit thermometer coded signal relative to the delayed clock signals in logically generating the four 2-1 bit control signals. The analog output signal may be a feedback signal in a sigma-delta analog-to-digital converter (ADC) circuit that includes a multi-bit quantization circuit operating to quantize a filtered loop signal to generate the 2-1 bit thermometer coded signal.