Title :
A novel widely linear current-tunable CMOS transconductor
Author :
Kaewdang, Khanittha ; Surakampontorn, Wanlop
Author_Institution :
Dept. of Electr. & Electron. Eng., Ubon Ratchathani Univ., Ubon Ratchathani, Thailand
Abstract :
A CMOS-based linearly tunable transconductor is proposed in this paper. The realization technique is achieved by using a fully differential transconductor and a current variable gain stage, for a power supply of ±1.5 V. Its transconductance gain can be linearly tuned by an external bias current for more than 4 decades. The transconductor cell is designed in 0.5 ¿m AMIS technology. The performance of the proposed circuit is discussed and confirmed through PSPICE simulation results.
Keywords :
CMOS analogue integrated circuits; SPICE; circuit tuning; AMIS technology; PSPICE simulation; current variable gain stage; external bias current; linear current-tunable CMOS transconductor; realization technique; size 0.5 mum; voltage -5 V; voltage 1.5 V; CMOS technology; Circuit simulation; Gain; MOSFETs; SPICE; Signal processing; Transconductance; Transconductors; Tunable circuits and devices; Voltage control;
Conference_Titel :
Intelligent Signal Processing and Communication Systems, 2009. ISPACS 2009. International Symposium on
Conference_Location :
Kanazawa
Print_ISBN :
978-1-4244-5015-2
Electronic_ISBN :
978-1-4244-5016-9
DOI :
10.1109/ISPACS.2009.5383846
