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. 11, 1995
Filed:
Nov. 01, 1993
Applicant:
Inventors:
Robert S Jones, III, Austin, TX (US);
Jeffrey D Ganger, Austin, TX (US);
Assignee:
Motorola Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330253 ; 330292 ;
Abstract
Compensation for a second pole located at an internal node (107 and 108) of a two pole cascode differential amplifier (30) is accomplished by introducing a left half plane zero in the transfer function of the cascode differential amplifier (30). This is done by coupling a compensation capacitor (46, 47) between an output node (105, 106) and the internal node (107, 108) of the cascode differential amplifier (30). The compensation capacitors (46, 47) improve high frequency performance of the amplifier (30) by improving phase margin and increasing stability.