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.

Date of Patent:
Sep. 27, 2011

Filed:

Oct. 28, 2009
Applicants:

Tino Copani, Riposto, IT;

Santo Alessandro Smerzi, Catania, IT;

Giovanni Girlando, Catania, IT;

Giuseppe Palmisano, San Giovanni La Punta, IT;

Inventors:

Tino Copani, Riposto, IT;

Santo Alessandro Smerzi, Catania, IT;

Giovanni Girlando, Catania, IT;

Giuseppe Palmisano, San Giovanni La Punta, IT;

Assignee:

STMicroelectronics S.r.l., Agrate Brianza, IT;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/289 (2006.01);
U.S. Cl.
CPC ...
Abstract

A prescaling stage includes bistable circuit in turn including respective master and slave portions inserted between a first and a second voltage reference and feedback connected to each other. Each portion is provided with at least one differential stage supplied by the first voltage reference and connected, by a transistor stage, to the second voltage reference, as well as a differential pair of cross-coupled transistors, supplied by output terminals of the differential stage and connected, by the transistor stage, to the second voltage reference. Advantageously, each master and slave portion includes a degeneration capacitance inserted in correspondence with respective terminals of the transistors of the differential pair.


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