Title :
Active bandpass network with only resistors as passive elements
Author :
Capparelli, F. ; Liberatore, A.
Author_Institution :
UniversitÃ\xa0 degli Studi, Istituto di Elettronica e Radiocontrolli, FacoltÃ\xa0 di Ingegneria, Pisa, Italy
Abstract :
This letter describes a technique which employs the lowpass properties of transistors to realise a high-Q factor selective amplifier with optimum sensitivity. It requires only resistors as passive elements and transistors as active devices. The realisation of the circuit is optimally insensitive to variations in the gain of transistors and provides for independent adjustment of the amplifier Q factor.
Keywords :
active filters; active bandpass network; high Q selective amplifier; lowpass properties of transistors; optimum sensitivity; resistors as passive elements; transistors as active devices;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19720032
