CURRENT-MODE LOWPASS AND BANDPASS-FILTERS USING THE OPERATIONAL-AMPLIFIER POLE

Authors
HIGASHIMURA M
Citation
M. Higashimura, CURRENT-MODE LOWPASS AND BANDPASS-FILTERS USING THE OPERATIONAL-AMPLIFIER POLE, International journal of electronics, 74(6), 1993, pp. 945-949
Citations number
9
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
International journal of electronics → ACNP
ISSN journal
00207217
Volume
74
Issue
6
Year of publication
1993
Pages
945 - 949
Database
ISI
SICI code
0020-7217(1993)74:6<945:CLABUT>2.0.ZU;2-P
Abstract
This paper proposes a circuit configuration for realizing current-mode lowpass and bandpass filters using the operational amplifier (op.-amp .) pole. The circuit simultaneously realizes lowpass and bandpass tran sfer functions using an op.-amp., three resistors and a capacitor. The effects of the parastic poles (i.e. second and third poles) of the op .-amp. on the gain of a lowpass filter are also presented. Since the c ircuit uses the op.-amp. pole, it is suitable for high frequency opera tion.