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:
Feb. 12, 2002
Filed:
Jun. 09, 2000
Sergio Pioppo, Mascalucia, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
A band gap reference stage includes a pair of transistors each having a conduction terminal and a control terminal, the control terminals of the transistors being connected together. A circuit is also included for causing substantially identical currents to pass through each of the pair of transistors. The circuit includes first and second resistors connected in series to a voltage reference. The conduction terminal of one of the pair of transistors is coupled to the voltage reference by the first and second resistors, the conduction terminal of the other of the pair of transistors is coupled to the voltage reference by the second resistor. The ratio of the first resistor to the second resistor defines a reference voltage substantially unchanged by a temperature variation on the control terminals of the pair of transistors.