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:
Aug. 05, 2014
Filed:
Jul. 16, 2012
Ja Seung Gou, Seoul, KR;
OH Kyong Kwon, Seoul, KR;
Min Seok Shin, Seoul, KR;
Min Kyu Kim, Ulsan, KR;
Ja Seung Gou, Seoul, KR;
Oh Kyong Kwon, Seoul, KR;
Min Seok Shin, Seoul, KR;
Min Kyu Kim, Ulsan, KR;
SK Hynix Inc., Gyeonggi-do, KR;
Abstract
The analog-to-digital converter includes a signal processing unit generating an operational amplifier output voltage in response to an input voltage and a DAC output voltage in a first period and generating the operational amplifier output voltage in response to a feedbacked operational amplifier output voltage and the DAC output voltage in a second period; a control unit generating a DAC control signal by comparing the operational amplifier output voltage with a first reference voltage to obtain high order M-bits of data in the first period, and generating the DAC control signal by comparing the operational amplifier output voltage with second and third reference voltages to obtain low order N-bits of data in the second period; and a digital analog converter generating the DAC output voltage in response to the DAC control signal.
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