Journal ArticleDOI
AZKA cell, the current-mode alternative of Wheatstone bridge
Seyed Javad Azhari,Hooman Kaabi +1 more
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TLDR
In this paper, a new circuit topology based on duality of the well known voltage-mode Wheatstone bridge is described, which can implement ratiometric current measurement which is a vital aspect of current-mode instrumentation and signal processing.Abstract:
This paper describes a new circuit topology based on duality of the well known voltage-mode Wheatstone bridge. This topology can implement ratiometric current measurement which is a vital aspect of current-mode instrumentation and signal processing. The theory of the proposed circuit is developed and its advantages and limitations are discussed. The new circuit (called AZKA cell) may be thought of as the current-mode alternative of traditional voltage-mode Wheatstone bridge. It presents the current-mode circuit designers and engineers their own relevant interface cell. The advantages of the new circuit are stated and some conditioning circuits for its output signal are proposed. Finally, a linearization circuit based on CCII+ is introduced.read more
Citations
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Journal ArticleDOI
An Ultra High CMRR Low Voltage Low Power Fully Differential Current Operational Amplifier (COA)
A. Roohavar,Seyed Javad Azhari +1 more
TL;DR: In this paper, a Fully Differential (FD) ultra high Common Mode Rejection Ratio (CMRR) Current Operational Amplifier (COA) with very low input impedance is presented.
Proceedings ArticleDOI
Transimpedance instrumentation amplifier based on current inversion
TL;DR: A novel instrumentation amplifier operating a differential current measurement from a resistive bridge using two voltage opamps to realize the current inversion and the second as a single input transimpedance amplifier is presented.
Journal ArticleDOI
Low‐power temperature‐independent CMOS measurement circuits for resistive gas sensors
TL;DR: In this paper , three different circuits for the measurement of resistive gas sensors are discussed and simulated using HSPICE in a commercial CMOS 180 nm technology node and their physical layout is also implemented.
Proceedings ArticleDOI
A Simple and Compact Transimpedance Mode dc Bridge Readout
TL;DR: In this paper, a new circuit configuration of a transimpedance mode dc bridge based on an operational trans-resistance amplifier (OTRA) as an analog building block is presented.
Patent
Circuit de mesure
TL;DR: The authors concerne un circuit de mesure for un capteur caracterise, in which qu'il comprend au moins une branche de detection (100) comprenant une premiere serie (101, 102) d'au moins un dipole, les series etant montees en parallele and reliees en entree a plot d'entree commun (120), and un circuit electronique comprenante a plot de sortie (151, 152) distinct, and configure pour appliquer un courant de polarisation d
References
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Journal ArticleDOI
A second-generation current conveyor and its applications
Adel S. Sedra,Kenneth C. Smith +1 more
TL;DR: This correspondence introduces another new building block embodying the current conveying concept, but with different and more versatile terminal characteristics, considered to be a secondgeneration current conveyor.
Proceedings ArticleDOI
Operational floating current conveyor: characteristics, modelling and applications
TL;DR: In this paper, a new five-port general purpose analogue building block, termed as an operational floating current conveyor (OFCC), is described, which combines the features of current feedback (CFB) operational amplifier, second generation current conveyors and operational floating conveyor.
Journal ArticleDOI
Current operational amplifiers: basic architecture, properties, exploitation and future
TL;DR: It is demonstrated, that the single-input, differential-output COA as the adjoint element to the differentialinput, single-output voltage operational amplifier (VOA) is employable in current processing circuits alike the VOAs in voltage processing circuits.
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