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:
Oct. 03, 2023
Filed:
Sep. 30, 2020
Nxp Usa, Inc., Austin, TX (US);
NXP USA, Inc., Austin, TX (US);
Abstract
In a particular example, a low drift voltage reference system includes a Zener diode circuit, a voltage reduction circuit, and a proportional-to-absolute temperature (PTAT) circuit. The Zener diode circuit, which is coupled between a first supply terminal (e.g., V) and a second supply terminal (e.g., common), provides an input reference voltage level. The voltage reduction circuit provides another reduced version of the input reference voltage level. The PTAT circuit has first and second differential paths to provide an output reference voltage at an output node of the PTAT circuit, and a feedback path to draw feedback current from the output node to control the differential circuit.