Title :
A dual feedback loop low-noise amplifier
Author :
Tiiliharju, Esa ; Koivisto, Tero
Author_Institution :
Dept. of Inf. Technol., Univ. of Turku, Turku, Finland
Abstract :
This paper studies application of a semi-active dual loop feedback network in an ultrawideband low-noise amplifier which has been realized in a 130-nm bulk digital CMOS process. The proposed simple feedback connection is shown to improve amplifier stability and to increase isolation, with no discernible extra cost. Measurement results support the stated benefits with stable amplifier operation in all measurement points.
Keywords :
CMOS digital integrated circuits; feedback amplifiers; low noise amplifiers; ultra wideband technology; amplifier stability; digital CMOS process; feedback connection; isolation; semi-active dual loop feedback network; size 130 nm; ultrawideband low-noise amplifier; CMOS process; Costs; Feedback loop; Frequency response; Low-noise amplifiers; Output feedback; Poles and zeros; Resistors; Stability; Ultra wideband technology;
Conference_Titel :
NORCHIP, 2009
Conference_Location :
Trondheim
Print_ISBN :
978-1-4244-4310-9
Electronic_ISBN :
978-1-4244-4311-6
DOI :
10.1109/NORCHP.2009.5397852
