Cmos Based Current Feedback Op-amp with Improved Bandwidth
نویسنده
چکیده
A current mode feedback operational amplifier designed using a complimentary MOS circuit technology has been discussed in this paper. A class AB amplifier has been used in the design and the design results in improvement of values of number of parameter when compared to the previously reported architecture. The circuit is designed using 0.35μm technology. Bandwidth of the presented architecture was obtained, that was always greater than 50MHz. On the other hand , bandwidth in case of previously reported circuit was coming out to be always more than 2MHz. Thus in our proposed circuit, there is a considerable improvement in the bandwidth of the circuit. Also the Slew rate, which was improved from 5.2V/μsec to 8.1V/ μsec. Settling time of the proposed circuit has been reduced to 134 nsec which was of order of 212 nsec in case of the previous design.
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