Title :
Cross coupled transconductance cell with improved linearity range
Author :
Maundy, Brent J. ; Finvers, Ivars G. ; Aronhime, Peter
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
Abstract :
A novel variation of the cross-coupled operational transconductance cell is presented in this paper. The conventional cross-coupled cell has a differential input linearity range that is dependent on the control voltage. The proposed design removes that restriction while allowing the same tunability using the control voltage. Its input may also be single or fully differential unlike the conventional cross-coupled cell, which requires a fully differential input. Results were confirmed using HSPICE simulations
Keywords :
CMOS analogue integrated circuits; SPICE; circuit simulation; circuit tuning; differential amplifiers; operational amplifiers; 0.35 mum; HSPICE simulations; OTA; control voltage tunability; cross-coupled operational transconductance cell; differential input linearity range; fully differential input; improved linearity range; n-well CMOS technology; single differential input; Circuits; Drives; Filtering; Linearity; Operational amplifiers; Signal processing; Threshold voltage; Transconductance; Transconductors; Voltage control;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.857387
