二阶连续有源滤波器的动态范围

IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications Pub Date : 1996-05-01 DOI:10.1109/81.502205

P. Bowron, K. Mezher, A. A. Muhieddine

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引用次数: 11

摘要

用方框图分析输出噪声和大信号谐波畸变，可以从理论上预测有源滤波器的总动态范围。这导致单和多放大器RC和OTA-C二阶带通滤波器电路的优化和比较。结果在实验中得到了证实。增加的设计频率或选择性降低了动态范围，这通常也与主动灵敏度有关。可用的OTA-C电路似乎在更有限的信号处理能力方面为其更高的频率性能付出了代价。

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The dynamic range of second-order continuous-time active filters

Analysis of both the output noise and the large-signal harmonic distortion in terms of block diagrams allows the total dynamic range of active filters to be predicted theoretically. This leads to optimization and comparison of single and multiple-amplifier RC and OTA-C second-order bandpass filter circuits. The results are confirmed experimentally throughout. Increased design frequency or selectivity reduces dynamic range which is also often related to active sensitivity. Available OTA-C circuits appear to pay for their higher-frequency performance in terms of more restricted signal-handling capability.

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IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications

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