Title :
A wideband CMOS variable gain amplifier using active feedback and resistive compensation
Author :
Sakprom, S. ; Thanachayanont, A. ; Khumsat, P.
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
This paper describes the design and realization of a low power low voltage variable gain amplifier based on an active feedback topology. The proposed amplifier employs the active feedback topology with resistive compensation technique to enhance the operating bandwidth. Simulation results using a 0.18 mum CMOS technology show that the proposed amplifier can achieve 3.3 GHz bandwidth and 56 dB gain, while drawing 24 mA from a single 1.8-V power supply voltage.
Keywords :
CMOS analogue integrated circuits; feedback amplifiers; microwave amplifiers; microwave integrated circuits; wideband amplifiers; active feedback topology; current 24 mA; frequency 3.3 GHz; gain 56 dB; resistive compensation; size 0.18 mum; voltage 1.8 V; wideband CMOS variable gain amplifier; Bandwidth; Broadband amplifiers; CMOS technology; Circuits; Feedback; Gain; Roentgenium; Topology; Voltage; Wideband;
Conference_Titel :
Communications and Information Technology, 2009. ISCIT 2009. 9th International Symposium on
Conference_Location :
Icheon
Print_ISBN :
978-1-4244-4521-9
Electronic_ISBN :
978-1-4244-4522-6
DOI :
10.1109/ISCIT.2009.5340989
