|
|||||
|
|
Multifunctional adjustable current mode biquads based on distributed feedback voltage mode prototype with OTAs |
|
| Authors: | Roman Sotner Jan Jerabek Tomas Dostal Kamil Vrba |
| Affiliation: | 1. Faculty of Electrical Engineering and Communication, Brno University of Technology , Purkynova 118, Brno, 612 00, Czech Republic xsotne00@stud.feec.vutbr.cz;3. Faculty of Electrical Engineering and Communication, Brno University of Technology , Purkynova 118, Brno, 612 00, Czech Republic;4. Faculty of Electrical Engineering and Communication, Brno University of Technology , Purkynova 118, Brno, 612 00, Czech Republic;5. College of Polytechnics Jihlava , Tolsteho 16, Jihlava, 586 01, Czech Republic |
| Abstract: | This article deals with electronic adjustable active RC biquads working in current mode (CM), using transconductors (OTAs), with a single input and single or dual outputs. Transformation of known voltage mode (VM) filter prototype into CM and subsequent modifications is given to obtain new active filtering circuits. The characteristics of the given circuits are verified by simulations of the OTAs at the transistor level using PSpice. The measurement results support the computer simulations. |
| Keywords: | current-mode multifunctional filters electronic adjusting transconductors simulations |