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:
Oct. 13, 1998
Filed:
Sep. 30, 1996
Tohru Miwa, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A current differential amplifier circuit comprises first and second pMOS transistors (P11 and P12) connected between a power supply and a first node (W11 ); third and fourth pMOS transistors (P13 and P14) connected between the power supply and a second node (W12); a fifth pMOS transistor (P15) connected between gates of the second and the third pMOS transistors (P12 and P13), each of the gates connected to its opposite node (W11 or W12 ); a first nMOS transistor (N16) connected between the first node (W11 ) and a first current source (I11 ) and having its gate connected to the second node (W12); and a second nMOS transistor (N17) connected between the second node (W12) and a second current source (I12) and having its gate connected to the first node (W11). Pre-charge signal (/PC) is applied to the gates of the first, fourth and the fifth pMOS transistors (P11, P14 and P15) and comparison results are derived from either the first node (W11) or the second node (W12).