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:
May. 09, 2006
Filed:
May. 25, 2004
Andrew W. Dornbusch, Austin, TX (US);
Andrew W. Dornbusch, Austin, TX (US);
Silicon Laboratories, Inc., Austin, TX (US);
Abstract
A transconductance amplifier () includes four transistors each operating in saturation and strong inversion. A first transistor () has a first current electrode and a control electrode both receiving an input voltage, and a second current electrode coupled to a power supply voltage terminal. A second transistor () has a first current electrode, a control electrode coupled to the first current electrode of the first transistor (), and a second current electrode coupled to the power supply voltage terminal. A third transistor () has a first current electrode for providing a negative differential current, a control electrode for receiving a bias voltage, and a second current electrode coupled to the first current electrode of the first transistor (). A fourth transistor () has a first current electrode for providing a positive differential current, a control electrode for receiving the bias voltage, and a second current electrode coupled to the first current electrode of the second transistor ().