CMOS sinusoidal oscillator based on current-controlled current conveyors

2002 ◽  
Vol 38 (21) ◽  
pp. 1254 ◽  
Author(s):  
H. Barthelemy ◽  
S. Meillere ◽  
E. Kussener
Keyword(s):  
Current Conveyors ◽  
Sinusoidal Oscillator ◽  
Controlled Current Conveyors

scholarly journals Active-Only Sinusoidal Oscillator with Electronically-Tunable Fully-Uncoupled Frequency and Condition of Oscillation

2001 ◽  
Vol 24 (4) ◽  
pp. 233-241 ◽  
Author(s):  
Muhammad Taher Abuelmaatti
Keyword(s):  
Second Generation ◽  
Operational Amplifiers ◽  
Current Conveyors ◽  
Oscillator Circuit ◽  
Operational Transconductance Amplifiers ◽  
Sinusoidal Oscillator ◽  
Condition Of Oscillation ◽  
Transconductance Amplifiers ◽  
Electronically Tunable

A new active-only sinusoidal oscillator is presented. The oscillator circuit uses two internally compensated operational amplifiers, two plus-type second-generation current conveyors and three operational transconductance amplifiers. The proposed circuit enjoys the attractive features of totally uncoupled frequency and condition of oscillation, low sensitivities, electronic tunability and integratability.

Sinusoidal frequency doubler and full-wave rectifier based on translinear current-controlled current conveyors

2004 ◽  
Vol 91 (4) ◽  
pp. 227-239 ◽  
Author(s):  
Kongsak Anuntahirunrat ◽  
Worapong Tangsrirat ◽  
Vanchai Riewruja ◽  
Wanlop Surakampontorn
Keyword(s):  
Current Conveyors ◽  
Frequency Doubler ◽  
Full Wave ◽  
Controlled Current Conveyors

scholarly journals Tuneable Current Mode RMS Detector

2015 ◽  
Vol 66 (1) ◽  
pp. 11-18
Author(s):  
Predrag B. Petrović
Keyword(s):  
Signal Processing ◽  
Theoretical Analysis ◽  
Integrated Circuits ◽  
Current Mode ◽  
Metal Oxide Semiconductor ◽  
Oxide Semiconductor ◽  
Current Conveyors ◽  
Band Limited ◽  
Controlled Current Conveyors ◽  
Good Agreement

Abstract A new realization of RMS detector, employing two CCCIIs (controlled current conveyors), metal-oxide-semiconductor transistors and single grounded capacitor is present in this paper, without any external resistors and components matching requirements. The proposed circuit can be applied in measuring the RMS value of periodic, band-limited signals. The proposed circuit is very appropriate to further develop into integrated circuits. The errors related to the signal processing and errors bound were investigated and provided. To verify the theoretical analysis, the circuit PSpice simulations have also been included, showing good agreement with the theory.

VOLTAGE-CONTROLLED CURRENT CONVEYORS: APPLICATIONS TO RESISTANCE-CONTROL

2005 ◽  
Vol 14 (02) ◽  
pp. 205-216
Author(s):  
M. A. ERRO ◽  
S. DÍAZ ◽  
C. F. ALASTRUEY ◽  
J. M. SANDOVAL
Keyword(s):  
Frequency Response ◽  
Current Conveyors ◽  
Control Range ◽  
Variable Gain ◽  
The Stability ◽  
Controlled Current Conveyors

Variable gain Current Conveyors have been proposed to allow control of the value on fixed resistors. In this paper, procedures will be described, taking into account the stability of different configurations when a practical CCII- is applied. Correction circuits will modify the control range. Frequency response and transients are shown.

scholarly journals A Compact Size Wideband RF-VGA Based on Second Generation Controlled Current Conveyors

Electronics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1600
Author(s):  
J. del Pino ◽  
Sunil L. Khemchandani ◽  
D. Galante-Sempere ◽  
C. Luján-Martínez
Keyword(s):  
Power Consumption ◽  
Second Generation ◽  
Low Cost ◽  
Low Frequency ◽  
Low Noise ◽  
Low Noise Amplifiers ◽  
Current Conveyors ◽  
Compact Size ◽  
Sige Bicmos ◽  
Controlled Current Conveyors

This paper presents a methodology to design a wideband radio frequency variable gain amplifier (RF-VGA) in a low-cost SiGe BiCMOS 0.35 μm process. The circuit uses two Class A amplifiers based on second-generation controlled current conveyors (CCCII). The main feature of this circuit is the wideband input match along with a reduced NF (5.5–9.6 dB) and, to the authors’ knowledge, the lowest die footprint reported (62 × 44 μm2 area). The implementation of the RF-VGA based on CCCII allows a wideband input match without the need of passive elements. Due to the nature of the circuit, when the gain is increased, the power consumption is reduced. The architecture is suitable for designing wideband, low-power, and low-noise amplifiers. The proposed design achieves a tunable gain of 6.7–18 dB and a power consumption of 1.7 mA with a ±1.5 V DC supply. At maximum gain, the proposed RF-VGA covers from DC up to 1 GHz and can find application in software design radios (SDRs), the low frequency medical implant communication system (MICS) or industrial, scientific, and medical (ISM) bands.

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