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. 19, 2016
Filed:
Jun. 22, 2015
Applicant:
Freescale Semiconductor, Inc., Austin, TX (US);
Inventors:
Xiankun Jin, Austin, TX (US);
Douglas A. Garrity, Austin, TX (US);
Assignee:
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 4/502 (2006.01); H03M 1/10 (2006.01);
U.S. Cl.
CPC ...
H03K 4/502 (2013.01); H03M 1/1071 (2013.01);
Abstract
A method and circuit for generating ramped voltages are provided. The ramp voltage generator circuit includes: a switched-capacitor amplifier having an input terminal, an output terminal, a sampling capacitor switchably coupled to the input terminal, and a gain capacitor switchably coupled to the output terminal; and a current source having a terminal coupled to a supply terminal, and a terminal coupled to the input terminal. The ramp voltage generator circuit may be coupled to test an analog-to-digital converter (ADC).