An investigation of log domain current feedback amplifiers

An investigation of log domain current feedback amplifiers

In this paper the idea of using a log domain integrator within a current feedback op amp is investigated. The log domain current feedback amplifier is then studied in order to gain better understanding of the way it works focusing on stability issues. A comparison with the classical CFA is performed...

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Hauptverfasser: Despotopoulos, S., Drakakis, E., Toumazou, C.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Educational institutions
Feedback amplifiers
Feedback circuits
Frequency
Impedance
Mirrors
Operational amplifiers
Output feedback
Parasitic capacitance
Voltage
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Drakakis, E.
Toumazou, C.
description In this paper the idea of using a log domain integrator within a current feedback op amp is investigated. The log domain current feedback amplifier is then studied in order to gain better understanding of the way it works focusing on stability issues. A comparison with the classical CFA is performed in terms of resistive and capacitive feedback proving that the circuit can work with capacitive feedback under certain conditions.
doi_str_mv 10.1109/ICECS.1998.814907
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ispartof 1998 IEEE International Conference on Electronics, Circuits and Systems. Surfing the Waves of Science and Technology (Cat. No.98EX196), 1998, Vol.2, p.393-396 vol.2
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Educational institutions
Feedback amplifiers
Feedback circuits
Frequency
Impedance
Mirrors
Operational amplifiers
Output feedback
Parasitic capacitance
Voltage
title An investigation of log domain current feedback amplifiers
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