High input impedance filters with low component spread using current-feedback amplifiers
Journal
Electronics Letters
Journal Volume
31
Journal Issue
13
Pages
1042-1043
Date Issued
1995-06
Date
1995-06
Author(s)
Abstract
A new configuration for high input impedance bandpass, lowpass and highpass filters with low component spread using two current-feedback amplifiers is presented. It has the following features: orthogonal control of the natural frequency and quality factor by grounded resistors or capacitors, simple conversion into a voltage-controlled filter, minimum active components, low active and passive sensitivities, low component spread suitable for high-Q applications and low output impedance. Experimental results are given to demonstrate the feasibility of the proposed circuits. © 1995, IEE. All rights reserved.
Subjects
Active filters; Current conveyors
SDGs
Other Subjects
Active networks; Amplifiers (electronic); Bandpass filters; Electric frequency control; Electric impedance; Electric power supplies to apparatus; Natural frequencies; Numerical analysis; Resistors; Sensitivity analysis; Transfer functions; Active sensitivity; Analogue filtering; Current conveyors; Current feedback amplifiers; Grounded resistors; High input impedance filters; Orthogonal control; Passive sensitivity; Quality factor; Voltage controlled filters; Electric filters
Type
journal article
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