Impedance projection based transconductance amplifier

Barthélemy, H.
July 2003
Electronics Letters;7/10/2003, Vol. 39 Issue 14, p1027
Academic Journal
A current feedback technique is proposed to realise the transposition of grounded impedance to a floating impedance or transconductance. This technique, that can be viewed as an impedance projection, also allows to implement a new current conveyor topology and to extend applications based on transconductance amplification. A theoretical approach of this new technique using a grounded impedance, two classical transconductance amplifiers and one second generation current conveyor only is presented.


Related Articles

  • Low-noise GaInP/GaAS HBT wideband dual feedback amplifiers using Kukielka and Meyer topologies. Jin-Siang Syu; Tzung-Han Wu; Chinchun Meng; Guo-Wei Huang // Microwave & Optical Technology Letters;Jul2010, Vol. 52 Issue 7, p1486 

    GaInP/GaAs HBT inductorless wideband amplifiers using shunt-series shunt-shunt dual-feedback topology (Kukielka topology) and shunt-series series-shunt dual-feedback topology (Meyer topology) are demonstrated in this article. Three amounts of feedback are applied on each topology. At the...

  • A low-noise wide-band transimpedance amplifier for current noise spectra measurements. De Geronimo, G.; Bertuccio, G.; Longoni, A. // Review of Scientific Instruments;Jul96, Vol. 67 Issue 7, p2643 

    Presents a low-noise wide-band transimpedance amplifier designed to measure the spectral noise densities of currents in submicroamplere range. Design of the feedback transimpedance amplifier; Description of the design criteria and experimental tests.

  • Modeling a voltage-locked Josephson junction array amplifier: Gain, input impedance, and bandwidth. McDonald, D. G. // Journal of Applied Physics;11/1/1986, Vol. 60 Issue 9, p3247 

    Presents a model of a voltage-locked Josephson junction array amplifier. Determination of the effective circuit; Model for input impedance and available power gain of the amplifier; Results using the slowly varying amplitudes method.

  • Power combining techniques into unbalanced loads for Class-E and inverse Class-E amplifiers. Thian, M.; Fusco, V. // IET Microwaves, Antennas & Propagation;Sep2008, Vol. 2 Issue 6, p529 

    A power combining strategy for Class-E and inverse Class-E amplifiers operating at high frequencies such that they can operate into unbalanced loads is proposed. This power combining method is particularly important for the inverse Class-E amplifier configuration whose single-stage topology is...

  • Don't let noise ruin instrumentation-amplifier performance. Mancini, Ron // EDN;10/31/2002, Vol. 47 Issue 24, p20 

    Discusses the reduction of noise sources in circuit designs for improving instrumentation-amplifier performance. Use of small power and ground impedances to minimize external noise in amplifiers; Level of internal noise generated by amplifiers; Use of low-voltage-noise amplifiers for lowering...

  • A simple and fast transimpedance amplifier for microchannel plate detectors. Schwartze, P.; Baumga¨rtel, H.; Eisenhardt, C. G. // Review of Scientific Instruments;Jul2001, Vol. 72 Issue 7, p3125 

    A simple and fast transimpedance amplifier to couple a microchannel plate detector with an oscilloscope with a low impedance input has been developed. The amplifier protects the connected electronic equipment from destructive high voltage bursts. Examples of the detection of electrons are shown....

  • Seven Steps to Amp Sim Goodness. Anderton, Craig // Guitar Player;Feb2013, Vol. 47 Issue 2, p130 

    The article focuses on the seven steps for guitar amplifier (amp) simulations (sim) including one on audio interface or amp-sim input, one on transient control, and concerning high-impedance input.

  • Analyze Matching Networks For Low-Noise Amplifiers. Aparin, Vladimir // Microwaves & RF;May2007, Vol. 46 Issue 5, p120 

    The article provides information on methods for generating impedance matching networks for a wide range of low-noise-amplifier (LNA) matching conditions. According to the article, achieving good amplifier low-noise performance depends on the required LNA device input impedances and the choice of...

  • High-performance adder uses instrumentation amps.  // EDN Europe;Oct2009, Vol. 56 Issue 10, p30 

    The article offers tips on how to design cost-efficient instrumentation amplifiers. One can have an unexpensive and improved performing amplifiers by limiting the shortcomings of operational amplifiers (op-amp) through the provision of low to medium input impedance. One can also limit the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics