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. 27, 2001
Filed:
Sep. 10, 1999
Applicant:
Inventor:
Peter Heinrich, Edling, DE;
Assignee:
STMicroelectronics GmbH, Grasbrunn, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 5/22 ;
U.S. Cl.
CPC ...
H03K 5/22 ;
Abstract
A comparator having a differential amplifier with a signal input to receive an input signal and a reference input to receive a reference voltage, and having a controllable bias current source for supplying to the differential amplifier a bias current that has a low quiescent current or a higher active current as a function of whether the input signal is constant or variable. The controllable bias current source is further configured to adjust the bias current in accordance with the rate of change of the input signal.