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:
Sep. 15, 2015
Filed:
Feb. 26, 2014
Texas Instruments Incorporated, Dallas, TX (US);
Manar Ibrahim El-Chammas, Dallas, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A circuit includes a track and hold (T/H) block to track an analog input signal during a track phase and to hold the analog input signal during a hold phase. A pipelined converter stage includes an analog to digital converter (ADC) receives the analog input signal from the T/H block and generates a digital output signal corresponding to the analog input signal. A digital to analog converter (DAC) element in the pipelined converter stage receives the digital output signal from the ADC and generates a current output signal representing an analog value for a portion of the analog input signal. A detector monitors the current output signal of the DAC element with respect to a predetermined reference current during the track phase and generates a trim signal if the current output signal is different from the predetermined reference current.