Title :
Operational transconductance amplifier-based nonlinear function syntheses
Author :
SÁnchez-Sinencio, Edgar ; Ramírez-Angulo, Jaime ; Linares-Barranco, Bernabe ; Rodríguez-VÁzquez, Angel
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
12/1/1989 12:00:00 AM
Abstract :
It is shown that the operational transconductance amplifier, as the active element in basic building blocks, can be efficiently used for programmable nonlinear continuous-time function synthesis. Two efficient nonlinear function synthesis approaches are presented. The first approach is a rational approximation, and the second is a piecewise-linear approach. Test circuits have been fabricated using a 3-μm p-well CMOS process. The flexibility of the designed and tested circuits was confirmed
Keywords :
CMOS integrated circuits; active networks; analogue circuits; function generators; linear integrated circuits; operational amplifiers; piecewise-linear techniques; 3 micron; OTA; active element; amplifier-based nonlinear function syntheses; analogue IC; basic building blocks; continuous-time function synthesis; operational transconductance amplifier; p-well CMOS process; piecewise-linear approach; programmable function synthesis; rational approximation; Attenuators; CMOS process; CMOS technology; Circuit synthesis; Circuit testing; Flexible printed circuits; Operational amplifiers; Piecewise linear techniques; Transconductance; Voltage control;
Journal_Title :
Solid-State Circuits, IEEE Journal of
