Publication detail

First-Order Multifunction Filter Design Using Current Amplifiers

HERENCSÁR, N. LAHIRI, A. KOTON, J. VRBA, K.

Original Title

First-Order Multifunction Filter Design Using Current Amplifiers

Czech Title

Návrh multifunkčního filtru prvního řádu pomocí proudových zesilovačů

English Title

First-Order Multifunction Filter Design Using Current Amplifiers

Type

conference paper

Language

en

Original Abstract

This paper presents a new circuit realization capable of simultaneously realizing all three current-mode first-order filtering functions, namely the low-pass (LP), high-pass (HP), and all-pass (AP). The proposed circuit is created using three programmable current amplifiers (PCAs) and only two passive components, which includes one resistor and one capacitor. LP and HP filters have independently tuneable gain and pole frequency by means of ``mu-factors'', while the AP filter has only tunable gains and the pole frequency is ideally controllable only by external passive components. The theoretical results are verified by SPICE simulations using transistor model process parameters NR100N (NPN) and PR100N (PNP) of bipolar arrays ALA400-CBIC-R from AT\T.

Czech abstract

This paper presents a new circuit realization capable of simultaneously realizing all three current-mode first-order filtering functions, namely the low-pass (LP), high-pass (HP), and all-pass (AP). The proposed circuit is created using three programmable current amplifiers (PCAs) and only two passive components, which includes one resistor and one capacitor. LP and HP filters have independently tuneable gain and pole frequency by means of ``mu-factors'', while the AP filter has only tunable gains and the pole frequency is ideally controllable only by external passive components. The theoretical results are verified by SPICE simulations using transistor model process parameters NR100N (NPN) and PR100N (PNP) of bipolar arrays ALA400-CBIC-R from AT\&T.

English abstract

This paper presents a new circuit realization capable of simultaneously realizing all three current-mode first-order filtering functions, namely the low-pass (LP), high-pass (HP), and all-pass (AP). The proposed circuit is created using three programmable current amplifiers (PCAs) and only two passive components, which includes one resistor and one capacitor. LP and HP filters have independently tuneable gain and pole frequency by means of ``mu-factors'', while the AP filter has only tunable gains and the pole frequency is ideally controllable only by external passive components. The theoretical results are verified by SPICE simulations using transistor model process parameters NR100N (NPN) and PR100N (PNP) of bipolar arrays ALA400-CBIC-R from AT\T.

Keywords

analog signal processing, active RC circuits, current-mode, first-order filter, current amplifier

Released

27.06.2016

Location

Vienna, Austria

ISBN

978-1-5090-1287-9

Book

Proceedings of 2016 39th International Conference on Telecommunications and Signal Processing (TSP)

Pages from

279

Pages to

282

Pages count

4

BibTex


@inproceedings{BUT128273,
  author="Norbert {Herencsár} and Abhirup {Lahiri} and Jaroslav {Koton} and Kamil {Vrba}",
  title="First-Order Multifunction Filter Design Using Current Amplifiers",
  annote="This paper presents a new circuit realization capable of simultaneously realizing all three current-mode first-order filtering functions, namely the low-pass (LP), high-pass (HP), and all-pass (AP). The proposed circuit is created using three programmable current amplifiers (PCAs) and only two passive components, which includes one resistor and one capacitor. LP and HP filters have independently tuneable gain and pole frequency by means of ``mu-factors'', while the AP filter has only tunable gains and the pole frequency is ideally controllable only by external passive components. The theoretical results are verified by SPICE simulations using transistor model process parameters NR100N (NPN) and PR100N (PNP) of bipolar arrays ALA400-CBIC-R from AT\T.",
  booktitle="Proceedings of 2016 39th International Conference on Telecommunications and Signal Processing (TSP)",
  chapter="128273",
  doi="10.1109/TSP.2016.7760878",
  howpublished="electronic, physical medium",
  year="2016",
  month="june",
  pages="279--282",
  type="conference paper"
}