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:
Jul. 24, 2012
Filed:
Jul. 18, 2011
Feng Pan, Fremont, CA (US);
Yuxin Wang, Sunnyvale, CA (US);
Jonathan H. Huynh, San Jose, CA (US);
Albert Chang, Santa Clara, CA (US);
Khin Htoo, Sunnyvale, CA (US);
Qui Vi Nguyen, San Jose, CA (US);
Feng Pan, Fremont, CA (US);
Yuxin Wang, Sunnyvale, CA (US);
Jonathan H. Huynh, San Jose, CA (US);
Albert Chang, Santa Clara, CA (US);
Khin Htoo, Sunnyvale, CA (US);
Qui Vi Nguyen, San Jose, CA (US);
SanDisk Technologies Inc., Plano, TX (US);
Abstract
A circuit and corresponding method for providing a reference voltage are presented. The circuit includes a current source having a magnitude with positive temperature correlation connected to a node, and a diode element connected between the node and ground, where the reference voltage is provided from the node. The circuit also includes a variable resistance connected to receive an input indicative of the circuit temperature and through which the diode element is connected to the node. The value of the variable resistance is adjusted based upon the circuit temperature input. The circuit is useful for application as a peripheral circuitry, such as on a flash or other non-volatile memory and other circuits requiring an on-chip reference voltage source.