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. 07, 2009
Filed:
Jun. 23, 2006
Francois Bore, Grenoble, FR;
Sandrine Bruel, Grenoble, FR;
Marc Wingender, Saint Egreve, FR;
E2V Semiconductors, , FR;
Abstract
The invention relates to integrated circuits comprising a set of identical differential pairs of two transistors each (T, T; T, T) one receiving a variable voltage (Vinp, Vinn) at its base and the other receiving a fixed reference voltage (Vrefp, Vrefn). In order to reduce the dispersion of the offset voltages of said differential pairs, it is provided that the transistor (T, T) that receives a fixed reference voltage has an emitter surface at least twice as large as the transistor (T, T) that receives a variable voltage at its base. Application to signal folding circuits and to analog-to-digital converters using differential pairs of transistors.