Title :
Improved circuits for the realization of switched-capacitor filters
fDate :
4/1/1980 12:00:00 AM
Abstract :
New topologies for switched-capacitor filters are presented. The circuits are based on a pair of complementary integrators and have transfer functions independent of parasitic capacitances between any node and ground. Design equations are given for low-pass, bandpass, high-pass, and notch biquads, as well as ladder simulation filters. The ladder simulation filters are scaled for optimum dynamic range. Discrete prototypes of both cascade and ladder simulation filters are used to verify the theory.
Keywords :
Analog signal processing; Bandpass filters; High-pass filters; Low-pass filters; Notch filters; Switched-capacitor filters; Band pass filters; Circuit simulation; Circuit topology; Dynamic range; Equations; Filtering theory; Parasitic capacitance; Switching circuits; Transfer functions; Virtual prototyping;
Journal_Title :
Circuits and Systems, IEEE Transactions on
DOI :
10.1109/TCS.1980.1084808
