A New CCII Based Voltage-Mode Multifunctional Filter with Reduced Number of Active and Passive Elements

2015 ◽  
Vol 24 (04) ◽  
pp. 1550047 ◽  
Author(s):  
Firat Yucel ◽  
Erkan Yuce
Keyword(s):  
Time Domain ◽  
Input Impedance ◽  
Current Conveyors ◽  
High Input ◽  
High Input Impedance ◽  
Voltage Mode ◽  
Low Pass ◽  
Band Pass ◽  
Simulation Results ◽  
High Pass

In this paper, a new voltage-mode (VM) multifunctional filter comprising two second-generation current conveyors (CCIIs) is proposed. The proposed filter with one input and three outputs is also composed of three resistors and two grounded capacitors. The proposed filter has high input impedance; thus, it can be easily connected with other VM circuits. The proposed filter can simultaneously provide low-pass (LP), band-pass (BP) and high-pass (HP) responses. A number of time domain and frequency domain simulation results are included to confirm the claimed theory.

scholarly journals New Voltage Mode Universal Filters Using Only Two CDBAs

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
J. K. Pathak ◽  
A. K. Singh ◽  
Raj Senani
Keyword(s):  
Quality Factor ◽  
Input Impedance ◽  
Angular Frequency ◽  
Output Impedance ◽  
Active Device ◽  
Voltage Mode ◽  
Low Pass ◽  
Band Pass ◽  
Simulation Results ◽  
High Pass

Two new configurations for voltage mode universal filters (VMUFs) using only two current differencing buffered amplifiers (CDBAs) are proposed. Both of the new configurations can realize all the five standard types of the filters, namely, low pass (LP), high pass (HP), band pass (BP), band stop (BS), and all pass (AP), from the same topology. In contrast to previously known CDBA-based VMUFs, the new configurations do not need an additional active device for voltage inversion to realize all pass functions. The proposed configurations offer the tunability of the natural angular frequency (ωo), quality factor (Q), or the bandwidth (BW) through separate virtually grounded resistors. Moreover, both circuits have resistive input impedance (which can be made high) and a low output impedance to facilitate easy cascading without additional buffers. PSPICE simulation results, based upon commercially available AD844 ICs to implement the CDBA, are included which confirm the practical workability of the new VMUF configurations.

Second-Order Voltage-Mode Universal Filters Using Two DVCCs, Two Grounded Capacitors and Four Resistors

2016 ◽  
Vol 25 (12) ◽  
pp. 1650154 ◽  
Author(s):  
Ahmet Abaci ◽  
Erkan Yuce
Keyword(s):  
Integrated Circuit ◽  
Matching Condition ◽  
Second Order ◽  
Point Of View ◽  
Pass Band ◽  
Current Conveyors ◽  
Voltage Mode ◽  
Low Pass ◽  
Band Pass ◽  
High Pass

In this paper, two new second-order voltage-mode universal filters are proposed. Both of the proposed filters use only two differential voltage current conveyors (DVCCs), four resistors and two grounded capacitors which are advantageous from integrated circuit technology point of view. They can simultaneously provide second-order low-pass, high-pass, band-pass, notch and all-pass responses. They offer orthogonal control of angular resonance frequency and quality factor. However, they have a single matching condition for only all-pass responses. A number of simulations based on SPICE program are accomplished in order to demonstrate the performance of both filters.

HIGH INPUT IMPEDANCE VOLTAGE-MODE UNIVERSAL FILTER AND QUADRATURE OSCILLATOR

2010 ◽  
Vol 19 (07) ◽  
pp. 1597-1607 ◽  
Author(s):  
SUDHANSHU MAHESHWARI ◽  
JITENDRA MOHAN ◽  
DURG SINGH CHAUHAN
Keyword(s):  
Input Impedance ◽  
Pass Band ◽  
High Input ◽  
High Input Impedance ◽  
Pass Filter ◽  
Quadrature Oscillator ◽  
Voltage Mode ◽  
Low Pass ◽  
Biquadratic Filter ◽  
Filter Signal

A new single input and five outputs high input impedance voltage-mode universal biquadratic filter using three DVCCs, five passive components is presented. The proposed circuit offers the following features: high input impedance, realization of all the standard filter functions, that is, high-pass, band-pass, low-pass, band reject and all-pass filters simultaneously, the use of grounded capacitor, orthogonal control of ω0 and Q, no need to employ inverting type input signals, and no need to impose component choice except realizing the all-pass filter signal. A new quadrature oscillator circuit is also realized. PSPICE simulations using 0.35 μm TSMC CMOS parameters confirm the validity of the proposed circuit.

scholarly journals High-Input Impedance Voltage-Mode Multifunction Filter

2021 ◽  
Vol 11 (1) ◽  
pp. 387
Author(s):  
San-Fu Wang ◽  
Hua-Pin Chen ◽  
Yitsen Ku ◽  
Yi-Fang Li
Keyword(s):  
Input Impedance ◽  
Angular Frequency ◽  
High Input ◽  
High Input Impedance ◽  
Current Feedback ◽  
Circuit Performance ◽  
Voltage Mode ◽  
Biquad Filter ◽  
Low Pass ◽  
Multifunction Filter

This paper proposes a high-input impedance voltage-mode (VM) multifunction biquad filter which employs three current-feedback amplifiers (CFAs), three resistors, and two grounded capacitors. The proposed VM multifunction biquad filter has single-input and triple-output and can realize non-inverting low-pass (NLP), inverting band-pass (IBP), and non-inverting band-stop (NBS) voltage responses at the same time without increasing component selection. The proposed VM multifunction biquad filter enjoys the orthogonal tunability of angular frequency and quality factor and also provides the advantage of using only two grounded capacitors, high-input impedance and low active/passive sensitivity. The performance of the proposed VM multifunction biquad filter is verified through its hardware implementation and OrCAD PSpice simulation based on AD844-type CFAs. The circuit analysis, sensitivity analysis, and NLP, IBP, and NBS voltage responses are also shown in this paper. The paper presents a method to effectively reduce the active and passive components, maintain good circuit performance, and reduce circuit costs.

scholarly journals A Multifunctional Voltage Mode Fractional Order Filters using a Single CFOA

2020 ◽  
Vol 9 (4) ◽  
pp. 687-691
Keyword(s):  
Fractional Order ◽  
Matlab Simulation ◽  
Current Feedback ◽  
Voltage Mode ◽  
Filter Structure ◽  
Low Pass ◽  
Band Pass ◽  
Simulation Results ◽  
Current Feedback Operational Amplifier ◽  
High Pass

A multifunction voltage mode fractional order filter structure is described using a single current feedback operational amplifier (CFOA). This configuration realizes three fractional order filters (FOFs) namely fractional order low pass (FOLP), fractional order band pass (FOBP) and fractional order high pass (FOHP) filters. The performance of the proposed structure has been verified through PSPICE and MATLAB simulation results using macro model of AD844 type CFOA.

scholarly journals High-Input Impedance Voltage-Mode Multifunction Filter with Four Grounded Components and Only Two Plus-Type DDCCs

2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
Hua-Pin Chen
Keyword(s):  
Input Impedance ◽  
Current Conveyors ◽  
High Input ◽  
High Input Impedance ◽  
Voltage Mode ◽  
Biquadratic Filter ◽  
Multifunction Filter ◽  
Component Matching ◽  
Single Input ◽  
Passive Sensitivity

This paper introduces a novel voltage-mode multifunction biquadratic filter with single input and four outputs using two plus-type differential difference current conveyors (DDCCs) and four grounded passive components. The filter can realize inverting highpass, inverting bandpass, noninverting lowpass, and noninverting bandpass filter responses, simultaneously. It still maintains the following advantages: (i) using grounded capacitors attractive for integration and absorbing shunt parasitic capacitance, (ii) using grounded resistors at allXterminals of DDCCs suitable for the variations of filter parameters and absorbing series parasitic resistances at allXterminals of DDCCs, (iii) high-input impedance good for cascadability, (iv) no need to change the filter topology, (v) no need to component-matching conditions, (vi) low active and passive sensitivity performances, and (vii) simpler configuration due to the use of plus-type DDCCs only. HSPICE and MATLAB simulations results are provided to demonstrate the theoretical analysis.

scholarly journals A CFOA-Based Voltage-Mode Multifunction Biquadratic Filter and a Quadrature Oscillator Using the CFOA-Based Biquadratic Filter

2019 ◽  
Vol 9 (11) ◽  
pp. 2304 ◽  
Author(s):  
San-Fu Wang ◽  
Hua-Pin Chen ◽  
Yitsen Ku ◽  
Po-Yu Chen
Keyword(s):  
Integrated Circuit ◽  
Input Impedance ◽  
Angular Frequency ◽  
High Input ◽  
High Input Impedance ◽  
Current Feedback ◽  
Quadrature Oscillator ◽  
Voltage Mode ◽  
Biquadratic Filter ◽  
Band Pass

This paper proposes a new high-input impedance current feedback operational amplifier (CFOA)- based voltage-mode multifunction biquadratic filter and a voltage-mode quadrature oscillator using the proposed high-input impedance CFOA-based biquadratic filter. The proposed high-input impedance CFOA-based voltage-mode multifunction biquadratic filter uses three CFOAs, three resistors, and two grounded capacitors with two inputs and three outputs. The filter can simultaneously realize non-inverting low-pass, non-inverting band-pass, and non-inverting band-reject filtering functions at the high-input impedance terminal while the inverting band-pass and non-inverting high-pass filtering functions can also be obtained by applying another high-input impedance terminal. The filter offers orthogonal control of resonance angular frequency and quality factor. The proposed high-input impedance CFOA-based voltage-mode multifunction biquadratic filter can be used to implement a voltage-mode quadrature oscillator with an independently controlled the frequency of oscillator and the condition of oscillation. The OrCAD PSpice simulation and experimental results of the commercially available integrated circuit, AD844AN, are used to confirm the characteristics of the proposed filter and oscillator.

High Input Impedance Voltage-Mode Universal Biquadratic Filter with One Input and Five Outputs Using Current Conveyors

2006 ◽  
Vol 25 (6) ◽  
pp. 767-777 ◽  
Author(s):  
Jiun-Wei Horng ◽  
Chun-Li Kaewpoonsuk ◽  
Chun-Ming Chang ◽  
Hung-Pin Chou ◽  
Chun-Ta Lin
Keyword(s):  
Input Impedance ◽  
Current Conveyors ◽  
High Input ◽  
High Input Impedance ◽  
Voltage Mode ◽  
Biquadratic Filter

LOW POWER CONTINUOUS TIME COMMON MODE SENSING FOR COMMON MODE FEEDBACK CIRCUITS

2010 ◽  
Vol 19 (03) ◽  
pp. 519-528 ◽  
Author(s):  
M. PRAMOD ◽  
T. LAXMINIDHI
Keyword(s):  
Continuous Time ◽  
Input Impedance ◽  
Cmos Process ◽  
High Input ◽  
High Input Impedance ◽  
Common Mode ◽  
Standby Power ◽  
Low Distortion ◽  
Simulation Results ◽  
Feedback Circuits

Continuous common mode feedback (CMFB) circuits having high input impedance and low distortion are proposed. The proposed circuits are characterized for 0.18 μm CMOS process with 1.8 V supply. Simulation results indicate that the proposed common mode detector consumes no standby power and CMFB circuit consumes 27–34% less power than previous high swing CMFB circuits.

NOVEL VOLTAGE-MODE UNIVERSAL FILTER USING ONLY TWO CDBAs

2005 ◽  
Vol 14 (01) ◽  
pp. 159-164 ◽  
Author(s):  
SUDHANSHU MAHESHWARI ◽  
IQBAL A. KHAN
Keyword(s):  
Pass Band ◽  
Universal Filter ◽  
Input Selection ◽  
Voltage Mode ◽  
Single Output ◽  
Control Computer ◽  
Low Pass ◽  
Band Pass ◽  
Pass Through ◽  
High Pass

A novel voltage-mode universal filter employing only two current differencing buffered amplifiers (CDBAs) is proposed. The filter uses four inputs and single output to realize six responses, viz. low-pass, high-pass, inverting band-pass, noninverting band-pass, band-elimination, and all-pass through input selection with independent pole-Q control. Computer simulation results using SPICE are also given to verify the theory.

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