Title
Novel Mixed-Mode Universal Biquad Configuration
Abstract
Although a variety of CFOA-based biquads have been known in the literature, any CFOA-based circuit capable of realising universal biquad filters in all the four possible modes i.e. voltage-mode, current-mode, trans-admittance-mode and trans-impedance-mode, has not been reported in the literature so far. In this paper, a novel configuration has been presented, which realises all the five generic filter functions (namely, low-pass, band-pass, high-pass, notch and all-pass) from the same circuit in all the four possible modes, employing only four-Current feedback operational amplifiers (CFOA) along with two grounded-capacitors as desirable for Integrated Circuit implementation. The workability of the circuit has been confirmed by hardware implementation based on AD844 type CFOAs.
Year
DOI
Venue
2005
10.1587/elex.2.548
IEICE ELECTRONICS EXPRESS
Keywords
Field
DocType
current-feedback operational amplifiers, biquad filters, current-mode circuits, circuit theory and design, mixed-mode filters
Current-feedback operational amplifier,Digital biquad filter,Computer science,Electronic engineering,Mixed mode,Integrated circuit,Operational amplifier
Journal
Volume
Issue
ISSN
2
22
1349-2543
Citations 
PageRank 
References 
11
2.07
1
Authors
4
Name
Order
Citations
PageRank
V. K. Singh1112.07
A. K. Singh2133.17
D. R. Bhaskar3438.97
R. Senani4406.72