Detail publikace

Four-input one-output voltage-mode universal filter using simple OTAs

KUMNGERN, M. SUKSAIBUL, P. KHATEB, F.

Originální název

Four-input one-output voltage-mode universal filter using simple OTAs

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

This paper presents a new electronically tunable voltage-mode universal filter with four-input one-output employing six simple operational transconductance amplifiers (OTAs), two grounded capacitors and two MOS resistors. The use of grounded passive components is beneficial for integrated circuit implementation. The proposed filter can realize low-pass, band-pass, high-pass, band-stop and all-pass filtering functions without active and passive component-matching conditions and inverting-type input signals requirements. The natural frequency and quality factor can be tuned independently and electronically by adjusting the bias currents. The voltage-mode filter offers the features of high-input impedance and low active and passive sensitivities. The characteristics of the proposed universal filter are verified using PSPICE simulators through 0.35 µm CMOS process. Experimental results are used to confirm the workability of proposed circuit through LM13600 commercially available OTAs. Also a digitally programmable filter is shown to confirm the advantage of multiple-input universal filter.

Klíčová slova

Universal filter, voltage-mode circuit, operational transconductance amplifier, analog circuit, digitally programmable filter

Autoři

KUMNGERN, M.; SUKSAIBUL, P.; KHATEB, F.

Vydáno

30. 1. 2019

Nakladatel

WORLD SCIENTIFIC PUBL CO PTE LTD

Místo

Singapore

ISSN

0218-1266

Periodikum

JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS

Ročník

28

Číslo

5, IF: 0.939

Stát

Singapurská republika

Strany od

1950078-1

Strany do

-20

Strany počet

20

URL