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:
Mar. 29, 2005
Filed:
Feb. 20, 2003
Kyoung-ho Moon, Kyungki-do, KR;
Seung-hoon Lee, Seoul, KR;
Jong-bum Park, Seoul, KR;
Hee-seuk Yang, Seoul, KR;
Kyoung-ho Moon, Kyungki-do, KR;
Seung-hoon Lee, Seoul, KR;
Jong-bum Park, Seoul, KR;
Hee-seuk Yang, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
Provided is an on-chip reference current generating circuit for generating a reference voltage that can be digitally calibrated and is substantially not affected by changes in temperature and/or supply voltage. The on-chip reference current generating circuit includes a summing circuit for receiving a first current having a negative temperature coefficient and a second current having a positive temperature coefficient, and outputting a third current based upon, is a sum of, the first and second currents; and a digital calibration circuit for calibrating the third current to be the reference current in response to a digital control signal. Using the on-chip reference current generating circuit, it is possible to precisely and digitally calibrate an offset between currents due to a change in temperature and/or supply voltage.