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. 08, 2006
Filed:
Jan. 05, 2005
Yi-bin Lee, Hsinchu, TW;
Peng-un Su, Hsinchu, TW;
Yi-Bin Lee, Hsinchu, TW;
Peng-Un Su, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A programmable gain current amplifier is provided, including a transistor pair, a plurality of differential pairs, and a control device. The transistor pair receives an input current. Each differential pairs connecting with each other in parallel is connected to the transistor pair to form a differential current mirror for amplifying the input current. The control device adjusts the output polarity of the current mirror, thereby obtaining a predetermined gain between the output of the current mirror and the input current. Therefore, amplification of the input current at a programmable gain is realized.