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:
Nov. 05, 2019
Filed:
Aug. 31, 2018
Successive approximation register analog-to-digital converter, electronic device and method therefor
Nxp B.v., Eindhoven, NL;
NXP B.V., Eindhoven, NL;
Abstract
A successive approximation register, SAR, analog-to-digital converter, ADC, () is described. The SAR ADC () includes: an analog input signal (); an ADC core () configured to receive the analog input signal () and comprising: a digital to analog converter, DAC () located in a feedback path; and a SAR controller () configured to control an operation of the DAC (), wherein the DAC () comprises a number of DAC cells, arranged to convert a digital code from the SAR controller () to an analog form; a digital signal reconstruction circuit () configured to convert the digital codes from the SAR controller () to a binary form; and an output coupled to the digital signal reconstruction circuit () and configured to provide a digital data output (). The DAC () is configurable to support at least two mapping modes, including a small signal mapping mode of operation; and the SAR controller () is configured to identify when the received analog signal is a small signal level, and in response thereto re-configure the DAC () and the digital signal reconstruction circuit () to implement a small signal mapping mode of operation.