scholarly journals Novel VDBA based universal filter topologies with minimum passive components

2021 ◽  
Vol 9 (3B) ◽  
Author(s):  
Musa Ali Albrni ◽  
◽  
Mohammad Faseehuddin ◽  
Jahariah Sampe ◽  
Sawal Hamid Md Ali ◽  
...  
Keyword(s):  
Process Variations ◽  
Matching Condition ◽  
Passive Component ◽  
Passive Components ◽  
Parasitic Extraction ◽  
Single Output ◽  
Mode Of Operation ◽  
Theoretical Predictions ◽  
Minimum Number ◽  
Component Matching

In this research, voltage differencing buffered amplifier (VDBA) is utilized in designing three novel multi-input single output (MISO) topologies of universal filters. The designed filters employ minimum number of passive components and did not require any passive component matching condition. Two of the designed filters can work in dual mode of operation simultaneously. The designed filters have inbuilt tunability property. The nonideal gain analysis and sensitivity analysis of the filters are also carried out to study the effect of process variations and process spread on the filter responses. The complete layout of the VDBA is designed using 0.18μm Silterra Malaysia process design kit (PDK) in Cadence design software. The parasitic extraction is done using Mentor graphics Calibre tool. The postlayout simulations bear close resemblance with the theoretical predictions.

scholarly journals Grounded Impedance Simulator Topologies Employing Minimum Passive Elements

2018 ◽  
Vol 7 (2.28) ◽  
pp. 1 ◽  
Author(s):  
Mohammad Faseehuddin ◽  
Jahariah Sampe ◽  
Sawal Hamid Md Ali
Keyword(s):  
Current Mode ◽  
Cmos Technology ◽  
Passive Component ◽  
Passive Components ◽  
Theoretical Predictions ◽  
Low Pass ◽  
Multifunction Filter ◽  
Component Matching ◽  
Order Butterworth Filter ◽  
Matching Constraints

In this research three new grounded inductance simulators (GIS) are proposed. In addition, frequency dependent negative resistor (FDNR) and grounded capacitor (GC) simulators are also developed. The voltage differencing current conveyor (VDCC) is utilized in the design. All the developed simulator circuits need a single active block and only two grounded passive components. All the designed simulator circuits are perfectly tunable and did not suffer from passive component matching constraints. To demonstrate the performance of the inductor, FDNR and GC circuits they are employed in designing  current mode parallel RLC multifunction filter, low pass third order Butterworth filter and RLC resonance circuits. The VDCC is designed in 0.18μm CMOS technology parameters from TSMC and simulated in P-Spice software to prove the theoretical predictions. 

scholarly journals Three-Input Single-Output Voltage-Mode Multifunction Filter with Electronic Controllability Based on Single Commercially Available IC

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Supachai Klungtong ◽  
Dusit Thanapatay ◽  
Winai Jaikla
Keyword(s):  
Output Voltage ◽  
Matching Condition ◽  
Passive Component ◽  
Voltage Mode ◽  
Single Output ◽  
Rlc Circuit ◽  
Low Pass ◽  
Multifunction Filter ◽  
Component Matching ◽  
Technology Corporation

This paper presents a second-order voltage-mode filter with three inputs and single-output voltage using single commercially available IC, one resistor, and two capacitors. The used commercially available IC, called LT1228, is manufactured by Linear Technology Corporation. The proposed filter is based on parallel RLC circuit. The filter provides five output filter responses, namely, band-pass (BP), band-reject (BR), low-pass (LP), high-pass (HP), and all-pass (AP) functions. The selection of each filter response can be done without the requirement of active and passive component matching condition. Furthermore, the natural frequency and quality factor are electronically controlled. Besides, the nonideal case is also investigated. The output voltage node exhibits low impedance. The experimental results can validate the theoretical analyses.

Commercially Available Active Device Based Grounded Inductor Simulator and Universal Filter with Improved Low Frequency Performances

2016 ◽  
Vol 26 (04) ◽  
pp. 1750052 ◽  
Author(s):  
Erkan Yuce ◽  
Shahram Minaei
Keyword(s):  
Low Frequency ◽  
Matching Condition ◽  
Passive Component ◽  
Universal Filter ◽  
Active Device ◽  
Current Feedback ◽  
Active Devices ◽  
Single Output ◽  
Current Feedback Operational Amplifiers ◽  
Component Matching

In this paper, a new grounded inductor simulator employing two current feedback operational amplifiers (CFOAs), three resistors and one grounded capacitor which is suitable for IC fabrication is proposed. Also, a new voltage-mode (VM) universal filter with three input and single output is given as application example of the grounded inductor simulator. The universal filter with low output impedance can be easily cascaded with other VM circuits. Both of the proposed circuits have the feature of improved low frequency performances, and can be easily constructed by two commercially available active devices such as AD844s. However, both inductor simulator and universal filter need a single passive component matching condition. Simulation and experimental test results are given to demonstrate the performance and workability of the proposed grounded inductor simulator and filter structure.

scholarly journals A New MISO-Type Voltage-Mode Universal Biquad Using Single VD-DIBA

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
K. L. Pushkar ◽  
D. R. Bhaskar ◽  
Dinesh Prasad
Keyword(s):  
Matching Condition ◽  
Angular Frequency ◽  
Pass Band ◽  
Passive Component ◽  
Active Device ◽  
Pass Filter ◽  
Voltage Mode ◽  
Single Output ◽  
Biquadratic Filter ◽  
Filter Configuration

A new multiple-input single-output-(MISO-)-type multifunction voltage-mode universal biquadratic filter employing single voltage differencing differential input buffered amplifier (VD-DIBA), two capacitors, and one resistor are proposed. The proposed structure can realize second-order low pass, high pass, band pass, band stop, and all pass filter responses without altering the circuit topology. The proposed new filter configuration also provides the following advantageous features, not available simultaneously in any of the single active device /element-based universal biquad in realizing all the five filter functions known earlier so far: (i) no requirement of any passive component(s) matching condition or inversion of input signal(s), (ii) independent electronic control of angular frequency () and bandwidth (BW), and (iii) low active and passive sensitivities. SPICE simulation results have been included using 0.35 µm TSMC technology to confirm the validity of the proposed new universal biquadratic filter configuration.

scholarly journals Voltage Mode Universal Biquad Using CCCII

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Ashish Ranjan ◽  
Sajal K. Paul
Keyword(s):  
Pass Band ◽  
Current Conveyors ◽  
Ic Design ◽  
Passive Components ◽  
Voltage Mode ◽  
Single Output ◽  
Low Pass ◽  
Minimum Number ◽  
Band Pass ◽  
Low Sensitivity

This paper proposes a multi-input single-output (MISO) second-order active-C voltage mode (VM) universal filter using two second-generation current-controlled current conveyors (CCCIIs) and two equal-valued capacitors. The proposed circuit realizes low pass, band pass, high pass, all pass, and notch responses from the same topology. The filter uses-minimum number of passive components and no resistor which is suitable for IC Design. The filter enjoys low-sensitivity performance and exhibits electronic and orthogonal tunability of pole frequency () and quality factor () via bias current of CCCIIs. PSPICE simulation results confirm the theory.

A New Voltage-Mode Multifunctional Filter Using Only Two Voltage Followers and a Minimum Number of Passive Elements

2015 ◽  
Vol 24 (06) ◽  
pp. 1550085 ◽  
Author(s):  
Firat Yucel ◽  
Erkan Yuce
Keyword(s):  
Experimental Tests ◽  
Passive Component ◽  
High Input ◽  
Voltage Mode ◽  
Low Power Dissipation ◽  
Low Pass ◽  
Minimum Number ◽  
Component Matching ◽  
Matching Constraints ◽  
High Pass

A new voltage-mode (VM) multifunctional filter using only two voltage followers (VFs), two resistors and two capacitors is proposed. The proposed filter with two inputs and two outputs can provide low-pass (LP) and high-pass (HP) responses. It does not need any critical passive component matching constraints. Additionally, it has low output impedances, low power dissipation and adequately low THD values. However, it does not have high input impedances; accordingly, it requires an extra VF to obtain high input impedance. A number of time domain and frequency domain simulations and experimental tests are performed to verify the claimed theory.

A Voltage-Mode Universal Biquadratic Filter Using DDCCTA

2016 ◽  
Vol 25 (05) ◽  
pp. 1650034 ◽  
Author(s):  
Punnavich Phatsornsiri ◽  
Montree Kumngern ◽  
Panit Lamun
Keyword(s):  
Angular Frequency ◽  
Current Conveyor ◽  
Cmos Process ◽  
Passive Component ◽  
Voltage Mode ◽  
Transconductance Amplifier ◽  
Theoretical Predictions ◽  
Low Pass ◽  
Biquadratic Filter ◽  
Component Matching

This paper presents a new voltage-mode (VM) universal biquadratic filter using differential difference current conveyor transconductance amplifier (DDCCTA) as an active element. The circuit employs one DDCCTA, two floating resistors and two floating capacitors which can realize five biquadratic filters, namely low-pass (LP), band-pass (BP), band-stop (BS), high-pass (HP) and all-pass (AP) into one single topology. For realizing these filtering functions, passive component-matching conditions, inverting-type and/or doubling-input signal requirements and changing circuit configuration are absent. The natural angular frequency and quality factor of the filter can be orthogonally controlled deliberately. The VM biquadratic filter using grounded passive components with high-input and low-output impedances can be obtained by adding an additional DDCCTA or differential difference current conveyor (DDCC). The simulation results with 0.5[Formula: see text][Formula: see text]m CMOS process from MIETEC are given to confirm the theoretical predictions and the experimental results are also included to verify the workability of the proposed structure.

First-Order Current-Mode Fully Cascadable All-Pass Frequency Selective Structure, Its Higher-Order Extension and Tunable Transformation Possibilities

2021 ◽  
pp. 2250030
Author(s):  
Bhartendu Chaturvedi ◽  
Jitendra Mohan ◽  
Jitender
Keyword(s):  
Current Mode ◽  
Matching Condition ◽  
Quality Performance ◽  
Passive Components ◽  
First Order ◽  
Component Matching ◽  
Frequency Selective ◽  
High Output Impedance ◽  
Theoretical Analyses ◽  
High Output

An extra-X second-generation current conveyor (EXCCII) based first-order current-mode all-pass frequency selective structure is presented through this paper. A grounded resistor and a grounded capacitor are used as passive components. Single active element based realization directly correlates with the circuit’s simplicity. The grounded nature of passive components is advantageous from IC fabrication aspects. The proposed circuit offers cascadability support through low input impedance and high output impedance. The ability of the presented idea to deliver the desired output without meeting any stringent component matching condition further simplifies the circuit’s operation. Sensitivity performance of the proposed circuit is good. The quality performance at high frequency is another value addition to the circuit’s signal processing attributes. Analyses showing the circuit’s behavior under non-ideal conditions are also described in detail. Validation of theoretical analyses is supported by simulations carried out on PSPICE at 0.25[Formula: see text][Formula: see text]m technology.

CMOS FIRST-ORDER CURRENT-MODE ALL-PASS FILTER WITH ELECTRONIC TUNING CAPABILITY AND ITS APPLICATIONS

2013 ◽  
Vol 22 (03) ◽  
pp. 1350007 ◽  
Author(s):  
LEILA SAFARI ◽  
SHAHRAM MINAEI ◽  
ERKAN YUCE
Keyword(s):  
Integrated Circuit ◽  
Low Voltage ◽  
Current Mode ◽  
Passive Component ◽  
Pass Filter ◽  
First Order ◽  
Sinusoidal Oscillator ◽  
Minimum Number ◽  
Component Matching ◽  
Electronically Tunable

In this paper, a novel first-order current-mode (CM) electronically tunable all-pass filter including one grounded capacitor and two dual-output current followers (DO-CFs) is presented. The used DO-CFs are implemented using only 10 MOS transistors granting the proposed CM all-pass filter extremely simple structure. The proposed filter is suitable for integrated circuit (IC) fabrication because it employs only a grounded capacitor and is free from passive component matching conditions. Interestingly the introduced configuration uses minimum number of components compared to other works. It also offers other interesting advantages such as, alleviating all disadvantages associated with the use of resistors, easy cascadability and satisfies all technology requirements such as small sizing, simple realization, low voltage and low power operation. Additionally, the circuit parameters can be easily set by adjusting control voltages. Most favorably, the proposed CM all-pass filter can be simply used as a voltage-mode (VM) all-pass filter with outstanding properties of adjustable gain and tunability. To further show the versatility of the proposed structure a sinusoidal oscillator is also derived from presented CM all-pass filter. Nonideal gain and parasitic impedance effects on developed CM filter are discussed. Finally, simulation results with SPICE program are included to confirm the theory.

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