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:
Dec. 27, 2005
Filed:
Dec. 23, 2003
Applicant:
Ranjit Gharpurey, Ann Arbor, MI (US);
Inventor:
Ranjit Gharpurey, Ann Arbor, MI (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H03F003/45 ; H03F001/14 ;
U.S. Cl.
CPC ...
Abstract
The present invention pertains to a MOS type differential buffer circuit. The buffer proposed herein utilizes capacitive coupling to apply small AC signals to an amplifying current source to mitigate attenuation owing to body effect and output impedance, among other things, in an associated follower component. The proposed circuit does not, however, promote an increase in current and/or power dissipation. Additionally, the circuit allows a desired gain to be achieved while maintaining a relatively constant output impedance, compared to a simple differential source follower.