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:
Nov. 18, 2008
Filed:
Aug. 01, 2007
Yong-weon Jeon, Suwon-si, KR;
Ji-woon Jung, Gwangmyeong-si, KR;
Jo-hyun Ko, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A digital to analog converter (DAC) converting digital data into a corresponding analog voltage is disclosed. The digital data includes upper bit data and lower bit data and the DAC includes; a first resistor circuit dividing first and second reference voltages to output a plurality of first division voltages, a first decoder selecting one of the first division voltages in response to the upper bit data, a second resistor circuit dividing third and fourth reference voltages to output a plurality of second division voltages, a second decoder selecting one of the second division voltages in response to the lower bit data, and a sample and hold circuit including a first capacitor and a second capacitor, and outputting the analog voltage in response to an output voltage from the first decoder and an output voltage from the second decoder, wherein the sample and hold circuit samples the output voltage of the first decoder during a sample mode, and adds the output voltages of the first and second decoders through the first and second capacitors to output a combined voltage during a hold mode.