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. 31, 2004
Filed:
Apr. 16, 2003
Applicant:
Inventor:
Wei-Cheng Lin, Kaohsiung, TW;
Assignee:
Frontend Analog and Digital Technology Corporation, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 ; H03K 1/704 ;
U.S. Cl.
CPC ...
H03F 3/45 ; H03K 1/704 ;
Abstract
A high switching speed differential amplifier comprises a differential pair, a first and a second active loads, and a current source, in which the differential pair is composed of a pair of MOS transistors to receive a pair of differential signals from a first and a second inputs. The first active load is connected to an output of the first MOS transistor and includes a first and a second paths switched therebetween in response to the first input. The second active load is connected to an output of the second MOS transistor and includes a third and a fourth paths in response to the second input.