Optimum pairing and ordering conditions for simultaneous reduction in total capacitance, sensitivity and output noise of cascade SC filters

By investigating relations among conditions proposed for minimizing total capacitance, sensitivity, and output noise independently, termed C_Tmin, S_min, and N_min conditions, the authors make it clear that there is no pairing and ordering (P/O) assignment with which the three parameters can be simultaneously minimized. Then they verify that the N_min condition is valid in reducing two other parameters. Trade-off optimum conditions are proposed by combining N_min with S_min and C_T. These conditions can limit the number of P/O assignments, in which an optimum P/O assignment for simultaneous reduction of three parameters can be searched out easily. Depending upon applications, the trade-off optimum condition can be slightly modified by adjusting the proportion of C_Tmin. These conditions can limit the number of P/O assignments in which an optimum P/O assignment for simultaneous reduction of three parameters can be searched out easily