提出了一个跨导线性MDDCCII电路,该电路全部由双极型晶体管构成。详细分析了其工作原理,并对该电路进行了硬件实验。该电路在0～1.5MHz以很小的跟踪误差满足MDDCCII理想端口特性,其中电压跟踪误差为0.01,同相电流跟踪误差为0.01,反相电流跟踪误差为0.02。作为应用,根据该MDDCCII电路构成了多功能二阶低通和高通滤波器电路,并对滤波器进行了硬件实验。 A transconductance MDDCCII circuit is proposed, which is entirely composed of bipolar transistors. The working principle of the circuit is analyzed in detail, and the hardware experiment of the circuit is carried out. The circuit meets the MDDCCII ideal port characteristics with a small tracking error of 0 ~ 1.5MHz. The voltage tracking error is 0.01, the in-phase current tracking error is 0.01, and the reverse-phase current tracking error is 0.02. As an application, a multi-functional second-order low-pass and high-pass filter circuit is constructed according to the MDDCCII circuit, and a hardware experiment on the filter is carried out.