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. 24, 2016
Filed:
May. 18, 2015
Olivier Vincent Doare, La Salvetat St Gilles, FR;
Rex Kenton Hales, Mesa, AZ (US);
Olivier Vincent Doare, La Salvetat St Gilles, FR;
Rex Kenton Hales, Mesa, AZ (US);
Freescale Semiconductor Inc., Austin, TX (US);
Abstract
The circuit generates an analog output signal which may be used to test a sigma-delta ADC. A digital waveform generator supplies a digital signal to a DAC to convert the digital signal into an analog signal. A filter filters the analog signal to obtain the analog output signal. The DAC is a DAC of a sigma-delta ADC and the filter comprises a filter of the sigma/delta ADC. A multiplexersupplies the digital signal to the DAC in a generator mode wherein the circuit converts the digital signal into the analog output signal using the part of the sigma-delta ADC, or to supply a quantized analog output signal to the DAC in normal mode wherein the sigma-delta ADC converts its analog input signal into the quantized analog output signal.