Title :
Electronically tunable floating CMOS resistor using OTA
Author :
Kaewdang, Khanittha ; Kumwachara, Kiattisak ; Surakampontorn, Wanlop
Author_Institution :
Res. Center for Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
A new CMOS OTA-based circuit is proposed to realize electronically tunable positive and negative floating resistors. The circuit employs two balanced OTAs and one fully differential OTA. The value of realized resistance can be linearly controlled by an external DC bias current over the range of more than 3 decades. The performances of the proposed circuit are discussed and confirmed through PSPICE simulation.
Keywords :
CMOS analogue integrated circuits; resistors; OTA; electronically tunable floating CMOS resistor; Analog circuits; CMOS technology; Circuit simulation; Differential equations; Information technology; Resistors; SPICE; Transconductance; Tunable circuits and devices; Voltage;
Conference_Titel :
Communications and Information Technology, 2005. ISCIT 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9538-7
DOI :
10.1109/ISCIT.2005.1566957
