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. 04, 2000
Filed:
Dec. 23, 1997
Patrick P Siniscalchi, Sachse, TX (US);
Davy H Choi, Garland, TX (US);
Sen-Jung Wei, Cupertino, CA (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A method for generating a response in a transconductance circuit includes receiving a circuit differential voltage input and providing a differential voltage input to each of a plurality of differential pairs to control, in part, a differential current generated by each differential pair. Each differential voltage input has a different common-mode voltage level. The method also includes sinking current through each of the differential pairs to control the differential current generated by each differential pair. The magnitude of the current sunk through one of the differential pairs is different from the magnitude of the current sunk through at least one of the other differential pairs. The method also includes combining the generated differential current from each of the plurality of differential pairs to produce a differential current output. Such a method may be used to generate a response in a transconductance circuit that is fairly linear over a range of input voltages without reducing the bandwidth of the transconductance circuit.