本文用有增益补偿的复合互补的两只晶体管取代Dutta Roy电路的运算放大器,构成低耗有源模拟电感。此模拟电感的主要特点是:电路简单,调整容易,稳定性好,并且导出了控制Q值的定量计算公式,其Q值可以超过1000。从而可以把Q调整到指定数值而便于工程应用。理论和实验结果一致,并利用此模拟电感制成了高通和低通有源滤波器。 In this paper, we replace the op amp of Dutta Roy circuit with two complementary CMOS transistors with gain compensation to form a low-power active analog inductor. The main features of this analog inductor are: simple circuit, easy adjustment and good stability, and the quantitative calculation formula of controlling Q value is deduced. The Q value can exceed 1000. Which can be adjusted to the specified value of Q and facilitate engineering applications. The theoretical and experimental results are consistent and the high-pass and low-pass active filters are made using this analog inductor.