全平衡式OTA－C连续时间滤波器性能研究

An Investigation of Fully Balanced OTA-C Continuous-Time Filter

本文讨论全平衡式ＯＴＡ—Ｃ滤波器的性能特点，分析表明，这种滤波器的优点是提高电源抑制比，提高信噪比，克服非平衡结构的高频畸变等。ＳＰＩＣＥ程序模拟结果证实了理论分析的正确性。

In this paper the performances of Fully Balanced OTA-C Filter are discussed.the analyses show that such OTA-C filter structure provides higher power supply rejection ratio,higher signal-to-noise ratio and better high frequency performance compared with single ended OTA-C filter structure.The theoretical analyses have been verified by the SPICE simulation results.