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. 23, 1999
Filed:
Sep. 30, 1997
Alan Kramer, Berkeley, CA (US);
Roberto Canegallo, Tortona, IT;
Mauro Chinosi, Cologno Monzese, IT;
Giovanni Gozzini, Palazzolo S/O, IT;
Philip Leong, Shatin, HK;
Pier Luigi Rolandi, Monleale, IT;
Marco Sabatini, Agrate Brianza, IT;
STMicroelectronics S.r.l., Agrate Brianza, IT;
Abstract
The present invention relates to a digital-to-analog converter having a plurality of inputs for digital signals and an output for an analog signal. It comprises a current amplification circuit having an input and an output coupled to the converter output, and a plurality of floating gate MOS transistors corresponding to the plurality of converter inputs and having their source terminals coupled together and to a first reference of potential. The converter has drain terminals coupled together and to the input of the amplification circuit, and has control terminals coupleable, under control from the inputs of the plurality, to different references of potential having selected fixed values.