Title :
A 3–47dB gain,+20dBm IIP3, 400MHz VGA for a pulse-based UWB in 0.18µm CMOS
Author :
The, Yen Ju ; Chung, Choong Foo ; Arasu, M. Annamalai
Author_Institution :
Integrated Circuits & Syst. Lab., A*STAR (Agency for Sci., Technol. & Res.), Singapore, Singapore
Abstract :
This paper presents an integrated variable gain amplifier (VGA) designed for ultra wideband (UWB) communication applications. A closed loop amplifier with series shunt feedback is adopted as the basic programmable gain stage, and its gain and bandwidth performance analyzed. Implemented in 0.18 μm CMOS technology the VGA achieves 450 MHz bandwidth, 20 dBm IIP3, 44 dB gain range with 1 dB increment, and 19 dB noise figure. The VGA chain consumes 15 mA from 1.8 V supply.
Keywords :
CMOS analogue integrated circuits; UHF amplifiers; ultra wideband communication; bandwidth 450 MHz; bandwidth performance; closed loop amplifier; current 15 mA; frequency 400 MHz; gain 3 dB to 47 dB; integrated variable gain amplifier; noise figure; noise figure 19 dB; programmable gain stage; pulse-based UWB; series shunt feedback; size 0.18 μm; ultra wideband communication; voltage 1.8 V; Bandwidth; Broadband amplifiers; CMOS technology; Feedback loop; Gain; Integrated circuit technology; Laboratories; Microelectronics; Pulse amplifiers; Ultra wideband technology; UWB; VGA; series shunt feedback; wide bandwidth;
Conference_Titel :
Integrated Circuits, ISIC '09. Proceedings of the 2009 12th International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-9-8108-2468-6
