Title :
Novel full-integrated active filters using the CMOS differential difference amplifier
Author :
Huang, Shih-Chia ; Ismail, Mohammed
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
The CMOS differential difference amplifier (DDA) is a new versatile CMOS building block that has been recently introduced. It is a four-input device with an output that could be single-ended or differential. Applications of the DDA in the implementation of fully-integrated MOS active filters are presented. Novel simple DDA-based differential integrators with such attractive features as infinite input impedance and minimum component count with no matching requirements are presented and used in the design of higher-order filter structures
Keywords :
CMOS integrated circuits; active filters; differential amplifiers; integrating circuits; CMOS differential difference amplifier; DDA; MOS active filters; differential integrators; four-input device; full-integrated active filters; higher-order filter structures; infinite input impedance; minimum component count; Active filters; Differential amplifiers; Impedance; Inverters; MOS capacitors; MOSFET circuits; Matched filters; Operational amplifiers; Resistors; Voltage;
Conference_Titel :
Circuits and Systems, 1989., Proceedings of the 32nd Midwest Symposium on
Conference_Location :
Champaign, IL
DOI :
10.1109/MWSCAS.1989.101822
