Title :
Programmable capacitance scaling scheme based on operational transconductance amplifiers
Author :
Aguado-Ruiz, Jesus ; Hernandez-Alvidrez, J. ; Lopez-Martin, Antonio J. ; Carvajal, R.G. ; Ramirez-Angulo, Jaime
Author_Institution :
Dept. of Electr. & Electron. Eng., Public Univ. of Navarra, Pamplona
Abstract :
A new programmable capacitance scaling scheme based on the utilisation of two tunable operational transconductance amplifiers (OTAs) is presented. The capability of the OTAs allows tunable positive/negative capacitance scaling factors. The scheme has been verified with simulations and experimentally using commercial bipolar OTAs and can be implemented in CMOS technology.
Keywords :
CMOS integrated circuits; bipolar integrated circuits; operational amplifiers; CMOS technology; commercial bipolar OTA; operational transconductance amplifier; programmable capacitance scaling scheme; tunable OTA;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20093596
