Title :
Switched capacitor and active-RC allpass ladder filters
Author :
Ping, Li ; Sewell, J.I.
Author_Institution :
Dept. of Electron. & Electr. Eng., Glasgow Univ., UK
Abstract :
Ladder-based allpass filters are derived for active resistance-capacitance (RC), switched-capacitor (SC), and digital realizations. The resulting circuits have the properties of parallel structures and very low amplitude sensitivities. The implementations are canonical with respect to the number of opamps or delays and multipliers. Examples are given, and these are critically assessed for component spread and sensitivities
Keywords :
active filters; all-pass filters; digital filters; ladder networks; network synthesis; switched capacitor filters; allpass ladder filters; delays; low amplitude sensitivities; multipliers; opamps; parallel structures; Admittance; Capacitance; Capacitors; Delay; Digital filters; Equations; Interference; Polynomials; RLC circuits; Transfer functions;
Conference_Titel :
Circuits and Systems, 1990., IEEE International Symposium on
Conference_Location :
New Orleans, LA
DOI :
10.1109/ISCAS.1990.112600
