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:
Jun. 28, 2016
Filed:
Nov. 12, 2015
Zentrum Mikroelektronik Dresden Ag, Dresden, DE;
Raik Richter, Kreischa, DE;
Marko Mailand, Dresden, DE;
ZENTRUM MIKROELEKTRONIK DRESEN AG, Dresden, DE;
Abstract
A method and arrangement for setting an effective resolution of an output signal in an incremental delta-sigma analog-to-digital conversion by an incremental delta-sigma analog-to-digital converter, includes feeding a difference between an input signal and a reference voltage signal formed in a feedback branch to a first integrator. Safeguarding the stability of multi-stage incremental delta-sigma analog-to-digital converters for large input signal ranges and not requiring direct damping of the input signal, such that a direct SNR impairment with regard to the ADC-inherent noise sources can be avoided, is achieved by a virtual reference voltage in the feedback branch of the incremental delta-sigma analog-to-digital converter. The reference voltage signal is adapted to a changing input signal range by a settable reference capacitance and a clock cycle number dependent thereon is set.