scholarly journals Programmable Second-Generation Current-Conveyor With Variable Current Gain

1995 ◽  
Vol 17 (4) ◽  
pp. 257-260
Author(s):  
Muhammad Taher Abuelma'atti ◽  
Abdulrahman Khalaf Al-Ali ◽  
Abdulrafeeq Abdulshakoor
Keyword(s):  
Second Generation ◽  
Current Conveyor ◽  
Current Gain ◽  
Operational Transconductance Amplifier ◽  
Transconductance Amplifier ◽  
Simulation Results

A new programmable second-generation current-conveyor is proposed. The proposed circuit uses a commercially available second-generation current-conveyor and one operational transconductance amplifier. Simulation results confirming the presented theory are included.

ON THE TRANSFORMATION OF GROUNDED INDUCTORS TO FLOATING INDUCTORS USING OFA AND FCCII

2011 ◽  
Vol 20 (02) ◽  
pp. 243-262 ◽  
Author(s):  
AHMED M. SOLIMAN
Keyword(s):  
Operational Amplifier ◽  
Current Conveyor ◽  
Operational Transconductance Amplifier ◽  
Transconductance Amplifier ◽  
Simulation Results

It is well known that a floating inductor circuit is realized from a grounded inductor circuit by replacing the operational amplifier by a floating operational transconductance amplifier. This idea is extended to transform current conveyor grounded inductors to floating inductors by replacing the current conveyor by the recently introduced floating current conveyor. Several examples are considered and simulation results are given to support the theory. Although the paper is partially a review in nature it includes several new realizations of floating inductors.

Operational Transconductance Amplifier-Based Electronically Controllable Memcapacitor and Meminductor Emulators

2021 ◽  
pp. 2150222
Author(s):  
Eyyup demir ◽  
Abdullah Yesil ◽  
Yunus Babacan ◽  
Tevhit Karacali
Keyword(s):  
Process Parameters ◽  
High Order ◽  
Crucial Importance ◽  
Operational Transconductance Amplifier ◽  
Passive Components ◽  
Mos Transistor ◽  
Transconductance Amplifier ◽  
Simulation Results ◽  
Layout Area ◽  
Electronically Controllable

In this paper, two simple circuits are presented to emulate both memcapacitor and meminductor circuit elements. The emulation of these components has crucial importance since obtaining these high-order elements from markets is difficult when compared to resistor, capacitor and inductor. For this reason, we proposed Multi-Output Operational Transconductance Amplifier (MO-OTA)-based electronically controllable memcapacitor and meminductor circuits. To operate the MOS transistor as a capacitor, drain and source terminals are connected to each other. The memcapacitor behavior is obtained by driving the connected terminals with suitable voltage values. Only a few active and grounded passive components which are found in markets easily are used to emulate meminductive behavior. Furthermore, all passive elements in the circuit are grounded. All simulation results for memcapacitor and meminductor emulators are obtained successfully when compared to previous studies. For all analyses, MO-OTA is laid using the Cadence Spectre Analog Environment with TSMC 0.18[Formula: see text][Formula: see text]m process parameters and occupied a layout area of only 86.21[Formula: see text][Formula: see text]m.

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.

Low Power Operational Transconductance Amplifier (OTA) with Enhanced DC Gain and Slew-Rate

2013 ◽  
Vol 411-414 ◽  
pp. 1645-1648
Author(s):  
Xiao Zong Huang ◽  
Lun Cai Liu ◽  
Jian Gang Shi ◽  
Wen Gang Huang ◽  
Fan Liu ◽  
...  
Keyword(s):  
Low Voltage ◽  
Cmos Technology ◽  
Optimization Techniques ◽  
Current Mirror ◽  
Slew Rate ◽  
Operational Transconductance Amplifier ◽  
Theory Analysis ◽  
Transconductance Amplifier ◽  
Dc Gain ◽  
Simulation Results

This paper presents a low-voltage differential operational transconductance amplifier (OTA) with enhanced DC gain and slew-rate. Based on the current mirror OTA topology, the optimization techniques are discussed in this work. The proposed structure achieves enhanced DC gain, unit gain frequency (UGF) and slew-rate (SR) with adding four devices. The design of the OTA is described with theory analysis. The OTA operates at the power supply of 1.8V. Simulation results for 0.18μm standard CMOS technology show that the DC gain increases from 60.6dB to 65dB, the UGF is optimized from 2.5MHz to 4.3MHz, the SR is enhanced from 0.88 V/μs to 4.8 V/μs with close power consumption dramatically.

ADDITIONAL HIGH-INPUT LOW-OUTPUT IMPEDANCE VOLTAGE-MODE ALL-PASS SECTIONS

2014 ◽  
Vol 23 (06) ◽  
pp. 1450077 ◽  
Author(s):  
JITENDRA MOHAN ◽  
SUDHANSHU MAHESHWARI
Keyword(s):  
Second Generation ◽  
Current Conveyor ◽  
Output Impedance ◽  
High Input ◽  
First Order ◽  
Voltage Mode ◽  
Fully Differential ◽  
Differential Voltage ◽  
Ideal Study ◽  
Simulation Results

To extend the existing knowledge on first-order voltage-mode all-pass filters, this paper presents two novel first-order voltage-mode all-pass sections, each employing single fully differential second-generation current conveyor (FDCCII) being used as the newly obtained fully differential voltage conveyor (FDVC), a resistor and a grounded capacitor. Both the proposed circuits possess high-input and low-output impedance feature, which makes the proposed circuits ideal for voltage-mode systems. Non-ideal study along with simulation results is given for validation.

A NOVEL, COMPENSATED, TUNABLE CURRENT CONVEYOR

1992 ◽  
Vol 02 (04) ◽  
pp. 397-401 ◽  
Author(s):  
C.A. KARYBAKAS ◽  
S. SISKOS ◽  
TH. L. LAOPOULOS
Keyword(s):  
Temperature Compensation ◽  
Input Voltage ◽  
Current Conveyor ◽  
Current Gain ◽  
Linear Operation ◽  
Simulation Results ◽  
Electronically Tunable ◽  
Circuit Configuration

A novel circuit configuration realizing an electronically tunable CCII which is based on OTAs, is presented. Simulation results confirm certain remarkable features of this circuit; linear operation for various input voltage values, linear tuning of current gain over a three decades range, and very good temperature compensation.

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