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. 23, 2004
Filed:
May. 28, 2003
Zhongmin Li, Pocatello, ID (US);
Bryce Rasmussen, Pocatello, ID (US);
AMI Semiconductor, Inc., Pocatello, ID (US);
Abstract
A complementary differential amplifier includes two differential amplifiers. Each differential amplifier includes two input FETs (or bipolar transistors) having gate terminals coupled to the input terminals of the complementary differential amplifier. Two current load p-type field-effect transistors are each coupled in series between one voltage source and a drain terminal of a respective input FET. A current source FET is coupled in series between a common source terminal of the two input n-type field-effect transistors and a low voltage source. Only two FETs are needed to bias all of the current load and source FETs. A complementary folded cascode stage as well as an inverter stage may also be included.