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:
Aug. 10, 2004
Filed:
Nov. 15, 2002
Applicant:
Inventor:
Frederic J. Bernard, Fuveau, FR;
Assignee:
Atmel Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/575 ; G05F 1/46 ;
U.S. Cl.
CPC ...
G05F 1/575 ; G05F 1/46 ;
Abstract
A bandgap voltage reference circuit that utilize a two-stage transconductance amplifier as a feedback control loop to improve the accuracy and stability of the output reference voltage without the need for an additional biasing circuit. The high gain provides a good power-supply rejection ratio, and improves the circuit performance. The amplifier does not require a biasing circuit, thus saving valuable chip space. Furthermore, eliminating the need for a biasing circuit reduces the power consumption of the circuit.