Title :
Transforming OTA-C filters from voltage- to current-mode
Author :
Esteban, Tlelo-Cuautle ; Arturo, Sarmiento-Reyes L.
Author_Institution :
Electron. Dept., INAOE, Puebla, Mexico
fDate :
6/24/1905 12:00:00 AM
Abstract :
A suitable method for transforming OTA-C filter circuits working in voltage-mode to current-mode is presented. First, the ideal behavior of the OTA is modeled using the or concept. Second, the transformation process is conducted by applying a set of four basic rules related to the interconnection pattern of the ors. Third, the ors of the transformed circuit are synthesized by OTAs. Finally, the computation of the transfer function of the given and the transformed circuit demonstrates the appropriateness of this method to be used as an analytical tool.
Keywords :
active networks; continuous time filters; current-mode circuits; interconnections; network analysis; operational amplifiers; transfer functions; OTA or concept model; OTA-C filters; or interconnection pattern; transfer function; transformed circuit ors; voltage-mode to current-mode transformation; Analog circuits; Circuit analysis computing; Circuit synthesis; Design optimization; Feedback; Filters; Integrated circuit interconnections; Transconductance; Transfer functions; Voltage;
Conference_Titel :
Devices, Circuits and Systems, 2002. Proceedings of the Fourth IEEE International Caracas Conference on
Print_ISBN :
0-7803-7380-4
DOI :
10.1109/ICCDCS.2002.1004006
