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:
May. 29, 2018
Filed:
May. 26, 2017
Keysight Technologies, Inc., Minneapolis, MN (US);
Sourja Ray, Cupertino, CA (US);
Jacky Kin Chi Liu, Santa Clara, CA (US);
Keysight Technologies, Inc., Santa Rosa, CA (US);
Abstract
Exemplary embodiments of the present invention pertain to circuitry provided in a digital-to-analog converter (DAC) for carrying out measurements indicative of various performance characteristics of the DAC. In one exemplary implementation, a control circuit containing one or more switches is used to controllably route into a measurement system, a portion of a signal that straddles a boundary between a first digital data bit and a second digital data bit in a sequence of digital data bits that are received in a DAC cell of the DAC. The control circuit, which can be included in one or more DAC cells of the DAC, is connected to a branch of a differential circuit that is provided in each of the DAC cells of the DAC, in a manner that does not affect digital-to-analog conversion in the DAC cells.