Paper Info
Title
High-Performance Electronically Tunable Analog Filter Using A Single Ex-Cccii
Abstract
In this paper, an electronically tunable mixed-mode analog filter is proposed, which employs only a single active element, namely Extra X Current Controlled Conveyor (EX-CCCII), two capacitors and a single resistor. The proposed circuit uses minimum components, so it is easy to integrate on chip. The circuit provides all four mode operations, namely current mode, voltage mode, transadmittance mode (TAM) and transimpedance mode without changing the circuit configuration. The circuit can provide all the five filter functions: low pass, high pass, band pass, band reject, and all pass by selecting appropriate input signals except the TAM. The parameters of the proposed circuit, i.e. angular frequency (omega(o)) and the quality factor (Q) are independent, while omega(o)is electronically tunable. The frequency range is 2.29 MHz to 22.9 MHz with a bias current variation from 1 to 100 mu A. The effects of non-idealities and parasitics of the active element on the circuit performances are discussed. The results are verified through PSPICE simulation using a 0.18 mu m CMOS technology with the supply voltages of +/- 0.5 V. The power consumption is 13.5 mu W at 1 mu A, and 1.35 mW at 100 mu A. The experimental setup further validates the theory and simulation results.
Year
DOI
Venue
2021
10.1007/s00034-020-01530-7
CIRCUITS SYSTEMS AND SIGNAL PROCESSING
Keywords
DocType
Volume
Mixed mode, Current conveyor, Analog filter, EX-CCCII
Journal
40
Issue
ISSN
Citations 
3
0278-081X
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Deepak Agrawal1164.72
Sudhanshu Maheshwari213222.48