scholarly journals Current-Mode Grounded-Capacitor Single-Element-Controlled Bandpass and Lowpass Filters

1995 ◽  
Vol 17 (4) ◽  
pp. 233-237
Author(s):  
Muhammad Taher Abuelma'atti

New circuit configurations for realizing bandpass and iowpass current-mode second-order filters are proposed. Each configuration uses a single first-generation current conveyor, a transconductance amplifier, three grounded capacitors, and two resistors at most. The parametersω0andω0/Q0of the bandpass and lowpass realizations are not interdependent and, therefore, single element control of the bandpass and lowpass characteristics is possible. Also, the feasibility of realizing a single element current-controlled sinusoidal oscillator is considered.

2020 ◽  
Vol 10 (4) ◽  
pp. 486-492
Author(s):  
Ajay K. Kushwaha ◽  
Ashok Kumar ◽  
Prakash Pareek

Objective: In this paper, a novel third order sinusoidal oscillator based on current controlled differential difference current conveyor transconductance amplifier (CCDDCCTA) is proposed. Methods: The proposed circuit configuration consist of single CCDDCCTA, two grounded resistor and three capacitors. It can concurrently yield output voltage and current. The amplitude of output current can be easily tuned by the bias current. The non-ideality and Monte-Carlo analysis are discussed and presented. Results: The stated results agree well with the theoretical estimation. Conclusion: The performance ofa proposed oscillator are analyzed with ORCAD 16.6 simulator and the analog block has been depicted using 0.25 μm CMOS TSMC technology parameters.


1994 ◽  
Vol 16 (2) ◽  
pp. 127-133
Author(s):  
Muhammad Taher Abuelma'atti

A novel current-mode active filter topology using a first generation current conveyor (CCI) and an operational transconductance amplifier (OTA) is presented. Using this topology, grounded-capacitor biquadratic bandpass and lowpass filter sections, with at most five one-port passive elements, are realized. In these realizations, the parameterω0can be adjusted without disturbing the parameterω0/ Q0


2021 ◽  
Vol 25 (2) ◽  
pp. 65-76
Author(s):  
Tajinder Singh Arora ◽  

This research article explores the possible applications of voltage differencing current conveyor (VDCC), as a current mode universal filter and a sinusoidal oscillator. Without the need for an additional active/passive element, a very simple hardware modification makes it a dual-mode quadrature oscillator from the filter configuration. Both the proposed circuit requires only two VDCC and all grounded passive elements, hence a preferable choice for integration. The filter has some desirable features such as availability of all five explicit outputs, independent tunability of filter parameters. Availability of explicit quadrature current outputs, independence in start and frequency of oscillations, makes it a better oscillator design. Apart from prevalent CMOS simulation results, VDCC is also realized and experimentally tested using the off-the-shelf integrated circuit. All the pen and paper analysis such as non-ideal, sensitivity and parasitic analysis supports the design.


1995 ◽  
Vol 17 (4) ◽  
pp. 203-206 ◽  
Author(s):  
Muhammad Taher Abuelma'atti ◽  
Abdallah Al-Ali Al-Ghumaiz

A novel single-element-controlled oscillator using two negative first-generation current-conveyors, two grounded capacitors and three grounded resistors is presented. The proposed circuit enjoys independent oscillation control through a single grounded resistor and independent frequency control through a single grounded resistor or a single grounded capacitor.


1990 ◽  
Vol 26 (18) ◽  
pp. 1456 ◽  
Author(s):  
P. Aronhime ◽  
D. Nelson ◽  
C. Adams

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Neeta Pandey ◽  
Sajal K. Paul

A universal voltage-mode filter (VM) and a current-mode filter (CM) based on recently proposed active building block, namely, differential voltage current conveyor transconductance amplifier (DVCCTA) are proposed. Both the circuits use a single DVCCTA, two capacitors, and a single resistor. The filters enjoy low-sensitivity performance and low component spread and exhibit electronic tunability of filter parameters via bias currents of DVCCTA. SPICE simulation using 0.25 μm TSMC CMOS technology parameters is included to show the workability of the proposed circuits.


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