论文信息 - Analysis of the noise characteristics of current-feedback operational amplifier

Analysis of the noise characteristics of current-feedback operational amplifier

Abstract The noise performance of Current-Feedback Operational Amplifier (CFOA) is investigated in this paper and a general noise model useful for both simulation and hand calculation is proposed. Comparison with the noise characteristics of conventional op-amps is also carried out showing comparable noise voltage and worst noise current for the CFOA. Some peculiar CFOA features, having no equivalence in conventional op-amps, are also highlighted. Finally, SPICE simulations based on a standard bipolar technology are found to be in a very good agreement with the theoretical results.

Gaetano Palumbo | Salvatore Pennisi

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