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Design of actively compensated finite gain amplifiers for high-frequency applications

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2 Author(s)

In this paper new circuits for realizing actively compensated finite gain amplifiers (FGA's) using operational amplifiers (OA's) and resistors are given. In IC technology, as the characteristics of the OA's and the resistor ratios track closely with each other with temperature and other variations of ambient conditions, the compensation should hold under such varying conditions. An application is considered in active-RC filters. Experimental results confirm the theoretical predictions. These results show that one can expect a substantial improvement in the operating frequency range of the circuits that employ the new amplifiers over the conventional amplifiers or the existing ones using two OA's.

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Circuits and Systems, IEEE Transactions on  (Volume:27 ,  Issue: 12 )