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:
Apr. 21, 2009
Filed:
Jan. 12, 2007
Gabriele Pelli, Mortara, IT;
Lorenzo Bedarida, Vimercate, IT;
Massimiliano Frulio, Milan, IT;
Davide Manfre′, Pandino, IT;
Gabriele Pelli, Mortara, IT;
Lorenzo Bedarida, Vimercate, IT;
Massimiliano Frulio, Milan, IT;
Davide Manfre′, Pandino, IT;
Atmel Corporation, San Jose, CA (US);
Abstract
A sense amplifier circuit for reading the state of memory cells. In one aspect of the invention, the sense amplifier circuit includes a first stage receiving a cell current derived from the memory cell and a reference current derived from a reference cell, and a second stage receiving the cell current and the reference current. A comparator, coupled to the first stage and the second stage, provides an output indicative of the state of the memory cell based on a difference of the voltages provided by the first stage and the second stage, where the state indicated by the comparator is substantially unaffected by capacitive current components provided by transient behavior of the first and second stages.