CMOS fully differential second-generation current conveyor

2000 ◽  
Vol 36 (13) ◽  
pp. 1095 ◽  
Author(s):  
H.A. Alzaher ◽  
H.O. Elwan ◽  
M. Ismail
Keyword(s):  
Second Generation ◽  
Current Conveyor ◽  
Fully Differential

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.

scholarly journals A Novel Fully Differential Second Generation Current Conveyor and Its Application as a Very High CMRR Instrumentation Amplifier

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Soma Ahmadi ◽  
Seyed Javad Azhari
Keyword(s):  
Second Generation ◽  
Current Mode ◽  
Cmos Technology ◽  
Current Conveyor ◽  
Instrumentation Amplifier ◽  
Intrinsic Resistance ◽  
Common Mode ◽  
Fully Differential ◽  
High Cmrr ◽  
Very High

This paper aims to introduce a novel Fully Differential second generation Current Conveyor (FDCCII) and its application to design a novel Low Power (LP), very high CMRR, and wide bandwidth (BW) Current Mode Instrumentation Amplifier (CMIA). In the proposed application, CMRR, as the most important feature, has been greatly improved by using both common mode feed forward (CMFF) and common mode feedback (CMFB) techniques, which are verified by a perfect circuit analysis. As another unique quality, it neither needs well-matched active blocks nor matched resistors but inherently improves CMRR, BW, and power consumption hence gains an excellent matchless choice for integration. The FDCCII has been designed using 0.18 um TSMC CMOS Technology with ±1.2 V supply voltages. The simulation of the proposed FDCCII and CMIA have been done in HSPICE LEVEL 49. Simulation results for the proposed CMIA are as follow: Voltage CMRR of 216 dB, voltage CMRR BW of 300 Hz. Intrinsic resistance of X-terminals is only 45 Ω and the power dissipation is 383.4 μW.  Most favourably, it shows a constant differential voltage gain BW of 18.1 MHz for variable gains (here ranging from 0 dB to 45.7 dB for example) removing the bottleneck of constant gain-BW product of Voltage mode circuits.

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