Title :
Digitally controlled CMOS balanced output transconductor based on novel current-division network and its applications
Author :
Hashiesh, Mohammed A. ; Mahmoud, Soliman A. ; Soliman, Ahmed M.
Author_Institution :
Dept. of Electr. Eng., Cairo Univ., Fayoum, Egypt
Abstract :
In this paper, a novel digitally controlled CMOS balanced output transconductor (DCBOTA) is proposed. The digital control of the transconductance of this DCBOTA is achieved using novel current division network (CDN). The proposed DCBOTA operates under low supply voltage of ±1.5 V. Application of the DCBOTA is realizing variable gain amplifier VGA and second order active filter. PSPICE simulation confirms the performance of the proposed blocks and its applications.
Keywords :
CMOS digital integrated circuits; SPICE; active filters; circuit simulation; differential amplifiers; digital control; digital filters; integrated circuit modelling; CMOS balanced output transconductor; PSPICE simulation; current division network; digital control; second order active filter; variable gain amplifier; Active filters; Circuits; Communication system control; Digital control; Digital signal processing; Gain; Low voltage; Modems; Passive filters; Transconductors;
Conference_Titel :
Circuits and Systems, 2004. MWSCAS '04. The 2004 47th Midwest Symposium on
Print_ISBN :
0-7803-8346-X
DOI :
10.1109/MWSCAS.2004.1354360
