Patent · US Active

Analog-digital converter and converting method using clock delay

US8659464B2 · kind B2 · utility

3Cited by
4References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 23, 2012
Grant dateFeb 25, 2014
Priority date
Expiry dateAug 23, 2032

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03M1/462
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

The present inventive concept relates to an analog-digital converter. The analog-digital converter includes a clock generating unit generating a clock signal; a clock delay adjusting unit outputting one of a first clock signal to a Kth clock signal according to a control signal; a capacitive digital-analog converting unit outputting a difference between the analog signal and a reference signal; a comparison unit judging whether an output of the capacitive digital-analog converting unit is 0, a positive number, or a negative number, in response to an output of the clock delay adjusting unit; and an SAR logic unit transferring an output of the comparison unit to the capacitive digital-analog converting unit in response to an output of the clock delay adjusting unit and performing a successive approximation operation to output the N-bit digital signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.