给出了一个低功耗、高频CMOS峰值检测电路,可以用于检测射频信号和基带信号的峰值.该电路的设计基于中芯国际0·35μm标准CMOS工艺.理论分析和后仿真结果都表明,在工艺偏差以及温度变化条件下,当输入信号幅度在400mV以上时检测的误差小于2%,检测带宽可达10GHz以上,整个检测电路的静态电流消耗低于20μA. A low-power, high-frequency CMOS peak detection circuit is proposed, which can be used to detect the peak value of RF signal and baseband signal.The design of this circuit is based on SMIC 0. 35μm standard CMOS technology.The theoretical analysis and post-simulation results show that , Under process deviation and temperature change, the error of detection is less than 2% when the input signal amplitude is more than 400mV, the detection bandwidth can reach more than 10GHz, and the quiescent current consumption of the whole detection circuit is less than 20μA.