scholarly journals Programmable Current-Conveyor-Based Oscillator Employing Grounded Resistors and Capacitors

1995 ◽  
Vol 18 (4) ◽  
pp. 259-265 ◽  
Author(s):  
Muhammad Taher Abuelma'atti ◽  
Abdulrahman Khalaf Al-Ali ◽  
Mohamed Ahsan
Keyword(s):  
First Generation ◽  
Frequency Control ◽  
Current Conveyor ◽  
Current Conveyors ◽  
Oscillation Control ◽  
Digitally Programmable

A new programmable oscillator using two negative first-generation current-conveyors, three grounded capacitors, and two grounded resistors is presented. The proposed circuit enjoys independent oscillation control through a single grounded resistor and independent frequency control through a single grounded capacitor. Replacing one of the grounded resistors by a digitally programmable resistor results in a programmable oscillator.

scholarly journals Novel Current-Conveyor-Based Single-Element-Controlled Oscillator Employing Grounded Resistors and Capacitors

1995 ◽  
Vol 17 (4) ◽  
pp. 203-206 ◽  
Author(s):  
Muhammad Taher Abuelma'atti ◽  
Abdallah Al-Ali Al-Ghumaiz
Keyword(s):  
First Generation ◽  
Frequency Control ◽  
Current Conveyor ◽  
Single Element ◽  
Current Conveyors ◽  
Oscillation Control

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.

FULLY PROGRAMMABLE UNIVERSAL FILTER WITH INDEPENDENT GAIN-ω0-Q CONTROL BASED ON NEW DIGITALLY PROGRAMMABLE CMOS CCII

2009 ◽  
Vol 18 (05) ◽  
pp. 875-897 ◽  
Author(s):  
TAREK M. HASSAN ◽  
SOLIMAN A. MAHMOUD
Keyword(s):  
Cmos Technology ◽  
Code Word ◽  
Current Conveyor ◽  
Current Gain ◽  
Current Conveyors ◽  
High Current ◽  
Universal Filter ◽  
Output Stage ◽  
Class Ab ◽  
Digitally Programmable

A fully programmable second-order universal filter with independently controllable characteristics is presented in this paper. The proposed filter is based on a new ± 0.75 V second-generation current conveyor with digitally programmable current gain. The input stage of the current conveyor is realized using two complementary MOS differential pairs to ensure rail-to-rail operation. The output stage consists of a Class-AB CMOS push-pull network, which guarantees high current driving capability with a 47.2 μA standby current. The digital programmability of the current conveyor, based on transistor arrays and MOS switches, provides variable current gain using a digital code-word. Two approaches for implementing current conveyors with programmable current gain either greater or less than one are described. The fully programmable universal filter and the proposed digitally programmable current conveyor circuits are simulated using PSPICE with 0.25 μm CMOS technology from MOSIS.

scholarly journals Ultra-Low Power CMOS Readout for Resonant MEMS Strain Sensors

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 973
Author(s):  
Marco Crescentini ◽  
Cinzia Tamburini ◽  
Luca Belsito ◽  
Aldo Romani ◽  
Alberto Roncaglia ◽  
...  
Keyword(s):  
Low Power ◽  
Power Supply ◽  
First Generation ◽  
Negative Resistance ◽  
Low Noise ◽  
Strain Sensors ◽  
Current Conveyors ◽  
Ultra Low Power ◽  
Active Elements ◽  
Low Power Cmos

This paper presents an ultra-low power, silicon-integrated readout for resonant MEMS strain sensors. The analogue readout implements a negative-resistance amplifier based on first-generation current conveyors (CCI) that, thanks to the reduced number of active elements, targets both low-power and low-noise. A prototype of the circuit was implemented in a 0.18-µm technology occupying less than 0.4 mm2 and consuming only 9 µA from the 1.8-V power supply. The prototype was earliest tested by connecting it to a resonant MEMS strain resonator.

scholarly journals Novel Current-Conveyor-Based Universal Current-Mode Biquad Filter with Three Inputs and One Output

1998 ◽  
Vol 20 (4) ◽  
pp. 235-240 ◽  
Author(s):  
Muhammad Taher Abuelma'atti ◽  
Hussain Abdullah Al-Zaher
Keyword(s):  
Second Generation ◽  
Current Mode ◽  
Current Conveyor ◽  
Current Conveyors ◽  
Independent Control ◽  
Biquad Filter

A novel universal current-mode filter with three inputs and one high imedance output is presented. The proposed circuit uses four plus-type second-generation current-conveyors, grounded resistors and grounded capacitors. The proposed circuit enjoys low active and passive sensitivities and independent control of the parametersω0/Q0using grounded resistors.

Applications of a first-generation current conveyor in current-mode circuits

1990 ◽  
Vol 26 (18) ◽  
pp. 1456 ◽  
Author(s):  
P. Aronhime ◽  
D. Nelson ◽  
C. Adams
Keyword(s):  
First Generation ◽  
Current Mode ◽  
Current Conveyor ◽  
Current Mode Circuits

scholarly journals A Novel Mixed-Mode Current-Controlled Current-Conveyor-Based Filter

2003 ◽  
Vol 26 (3) ◽  
pp. 185-191 ◽  
Author(s):  
Muhammad Taher Abuelma'atti
Keyword(s):  
Mixed Mode ◽  
Second Generation ◽  
Current Conveyor ◽  
Current Conveyors ◽  
Simulation Results

A new mixed-mode biquad circuit is presented. The circuit uses four dual-output second-generation currentcontrolled current-conveyors (DOCCCIIs) and two grounded capacitors and can realize lowpass, highpass, bandpass and notch responses from the same topology. The circuit can be driven by voltage or current and its output can be voltage or current. The parametersωoandωo/Qoenjoy independent electronic tunability. Simulation results are included.

Novel SRCOs using first generation current conveyor

2000 ◽  
Vol 87 (10) ◽  
pp. 1187-1192 ◽  
Author(s):  
Raj Senani ◽  
S. S. Gupta
Keyword(s):  
First Generation ◽  
Current Conveyor
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