Multiple-loop feedback switched- capacitor structures

A new switched-capacitor (SC) design technique is presented. The proposed technique is based on implementing strays-insensitive first-order SC building blocks in a multiple-loop feedback (MF) structure. The SC structures obtained in this manner are insensitive to top and bottom plate parasitic capacitances and are capable of realizing any stable th-order discrete-time transfer function. A bandpass filter is designed as an example and its sensitivity performance is demonstrated via Monte Carlo analysis.