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:
Jan. 18, 2005
Filed:
May. 07, 2003
Jerry L. Doorenbos, Tucson, AZ (US);
David M. Jones, Tucson, AZ (US);
Mikhail V. Ivanov, Erlangen, DE;
Jerry L. Doorenbos, Tucson, AZ (US);
David M. Jones, Tucson, AZ (US);
Mikhail V. Ivanov, Erlangen, DE;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An operational amplifier having an adjustable input offset is provided that can improve dynamic performance by allowing processing of the input signal in continuous-time. The amplifier circuit comprises an input source and an operational amplifier configured with an adjustable input offset circuit. The adjustable input offset circuit enables cancellation of the offset error from any input sources prior to being translated or gained up by the operational amplifier, thus improving the dynamic range of the operational amplifier. The adjustable input offset circuit can be configured within a signal path of an auto-zero loop of the operational amplifier, or with a continuous-time implementation.