AN-597 Current Feedback Amplifiers
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منابع مشابه
A Novel Design for a Current Feedback Amplifier
Current Feedback Amplifiers (CFA) are discussed in this report. Current Feedback Amplifiers employ the current mode of signal processing to achieve higher gain-bandwidth product and greater slew rates than those of a Voltage Feedback Amplifier (VFA). The Current Feedback Amplifier topology has an inherent advantage over that of the the Voltage Feedback Amplifier, wherein the amplifier gain can ...
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The need for high speed, wideband amplifiers is the driving force behind the development of the Current Feedback Amplifier (CFA). The CFA has significant advantages over conventional amplifiers in terms of slew rate performance and inherently wide bandwidth. This paper provides a review of the theory and design of current feedback amplifiers.
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In this paper, we investigate the parameters affecting Total Harmonic Distortion (THD) and Power Supply Rejection Ratio (PSRR) in PWM Class D Amplifiers (CDAs) on the basis of linear models with feedback. From our mathematical analysis, we show that the THD of a PWM Class D amplifier with feedback can be improved by increasing the gain of the integrator through adding another amplifier at the o...
متن کاملAnalyzing the Effect Adding an Active Feedback Network with an Inductive behavior to a Common-Gate Topology as a Transimpedance Amplifier for Low-Power and Wide-Band Communication Applications
Common Gate (CG) topologies are commonly used as the first stage in Transimpedance Amplifiers (TIA), due to their low input resistance. But, this structure is not solely used as a TIA and comes with other topologies such as differential amplifiers or negative resistances and capacitances. This paper deals with analyzing the effect of adding an active feedback network to a common gate topology...
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With the introduction of commercially available amplifiers using the current feedback topology by Comlinear Corporation in the early 1980’s, previously unattainable gain and bandwidths in a DC coupled amplifier became easily available to any design engineer. The basic achievement realized by the current feedback topology is to de-couple the signal gain from the loop gain part of the overall tra...
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