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:
Nov. 18, 2014
Filed:
Feb. 07, 2013
Texas Instruments Incorporated, Dallas, TX (US);
Steven G. Brantley, Satellite Beach, FL (US);
Vadim V. Ivanov, Tucson, AZ (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An operational amplifier () capable of driving a capacitive load (C) and/or a resistive load (R) includes a first gain stage () having an output coupled to a high impedance node () and a second gain stage () having an input coupled to the first high impedance node. A gain reduction resistor (R) and an AC coupling capacitor (C) are coupled in series between the high impedance node and a reference voltage. A Miller feedback capacitor (C) is coupled between an output conductor () of the second gain stage and the high impedance node. The output of the second gain stage may be coupled to the high impedance node by a cascode transistor (M).