Wide-range electronically tunable multifunctional OTA-C filter for instrumentation applications

Author

Khan, Iqbal A. ; Ahmed, Muslim T.

Author_Institution

Dept. of Electr. Eng., Aligarh Muslim Univ., India

Issue

1

fYear

1987

fDate

3/1/1987 12:00:00 AM

Firstpage

13

Lastpage

17

Abstract

A simple scheme is presented for realizing four standard second-order transfer functions, i.e. low-pass, high-pass, bandpass, and band-elimination. The system is implemented using only operational transconductance amplifiers (OTAs) and capacitors. The resulting circuit has the attractive feature of wide-range electronic tuning of pole frequency, bandwidth, and pole Q. These parameters may also be programmed digitally. The OTA-C filter achieves excellent sensitivity performance and is suitable for monolithic IC implementation.

Keywords

band-pass filters; band-stop filters; high-pass filters; instrumentation; low-pass filters; operational amplifiers; tuning; band elimination; band pass filter; bandwidth; high pass filter; low pass filter; monolithic IC; operational transconductance amplifiers; pole Q; pole frequency; standard second-order transfer functions; wide-range electronic tuning; Band pass filters; Dynamic range; Filtering theory; Sensitivity; Transfer functions; Tuning;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.1987.6312622

Filename

6312622