Title :
A novel architecture of digitally programmable continuous-time OTA-C filters
Author :
Lojacono, Roberto ; Salerno, Mario ; Sargeni, Fausto
Author_Institution :
Dept. of Electron. Eng., Rome Univ., Italy
Abstract :
In this paper a very simple VLSI architecture of digitally programmable OTA-C filter is presented. The proposed realization uses a Digitally Programmable Transconductance Amplifier (DPTA) that permits to vary its transconductance parameter in digital way. Thus the tuning of many features of biquad section is obtained simply through digital control lines
Keywords :
VLSI; biquadratic filters; circuit tuning; continuous time filters; VLSI architecture; biquad section; continuous-time OTA-C filters; digital control lines; digitally programmable filters; transconductance amplifier; tuning; Circuits; Digital control; Digital filters; Mirrors; Quadratic programming; Semiconductor device modeling; Switches; Transconductance; Very large scale integration; Voltage;
Conference_Titel :
Circuits and Systems, 1994., Proceedings of the 37th Midwest Symposium on
Conference_Location :
Lafayette, LA
Print_ISBN :
0-7803-2428-5
DOI :
10.1109/MWSCAS.1994.519003
