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.

Date of Patent:
Dec. 30, 2014

Filed:

Oct. 11, 2013
Applicant:

SK Hynix Inc., Gyeonggi-do, KR;

Inventor:

Si-Wook Yoo, Gyeonggi-do, KR;

Assignee:

SK Hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/12 (2006.01); H03M 1/14 (2006.01); H03F 3/45 (2006.01); H03G 1/00 (2006.01);
U.S. Cl.
CPC ...
H03M 1/14 (2013.01); H03F 3/45071 (2013.01); H03G 1/0017 (2013.01);
Abstract

An amplifier includes a common load suitable for outputting an output signal, a coarse input differential stage, coupled to the common load, suitable for amplifying a difference between an input signal and a coarse ramping signal to output a coarse conversion signal as a first output signal, when the coarse ramping signal is lower than the input signal, and a fine input differential stage, coupled to the common load, suitable for amplifying a difference between a fine ramping signal and a bias signal and compensating the first output signal to output a fine conversion signal as the output signal, when a zero crossing occurs by the compensated first output signal.


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