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:
Apr. 15, 2008
Filed:
Jan. 26, 2006
Jeongwook Koh, Seoul, KR;
Hoon-tae Kim, Yongin-si, KR;
Kyoung-sik Seol, Gyeongbuk, KR;
Gyu-hyeong Cho, Daejeon, KR;
Jeongwook Koh, Seoul, KR;
Hoon-tae Kim, Yongin-si, KR;
Kyoung-sik Seol, Gyeongbuk, KR;
Gyu-hyeong Cho, Daejeon, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
Provided is a complementary metal oxide semiconductor variable gain amplifier controlling a dB linear gain and a method of controlling the dB linear gain. The complimentary metal oxide semiconductor variable gain amplifier includes: first through fourth transistors differentially receiving first and second input voltages and amplifying the first and second input voltage using a predetermined gain; fifth and sixth transistors controlling a transconductance according to a control voltage to control the predetermined gain; and first and second resistors generating an output voltage having the predetermined gain according to an output current generated by the fifth and sixth transistors.