Title :
Variable Gain Amplifier in CMOS 0.18µm for WiMAX application
Author :
Lahiani, Sawssen ; Ayadi, Dorra ; Ben Salem, Samir ; Douss, Skandar ; Loulou, Mourad
Author_Institution :
LETI-Lab., Sfax Univ., Sfax, Tunisia
Abstract :
A CMOS Variable Gain Amplifier (VGA) in TSMC 0.18μm technology is designed. The circuit is applied for IEEE 802.16e standard, mobile WiMAX. The used structure is based on differential pair with source-degeneration topology. Two VGA cells were cascaded in order to attend WiMAX requirements. The studied circuit provided a minimum gain of 4.87dB and a maximum gain of 40.19dB over more than 100MHz bandwidth. A noise figure less than 20dB is obtained. The VGA consumes approximately 10mW under ±0.75V power supply.
Keywords :
CMOS analogue integrated circuits; WiMax; amplifiers; network topology; CMOS; IEEE 802.16e standard; TSMC technology; differential pair; mobile WiMAX; noise figure; size 0.18 mum; source-degeneration topology; variable gain amplifier; voltage 0.75 V; Gain; IEEE 802.16 Standards; Noise figure; Radio frequency; Receivers; WiMAX; CMOS; VGA; WiMAX standard;
Conference_Titel :
Design & Technology of Integrated Systems in Nanoscale Era (DTIS), 2015 10th International Conference on
Conference_Location :
Naples
DOI :
10.1109/DTIS.2015.7127345
