Title :
Polyphase SC IIR Hubert transformer with reduced sensitivity to finite gain and bandwidth
Author :
Pun, Kong-Pang ; Franca, J.E. ; Azeredo-Leme, C.
Author_Institution :
Inst. Superior Tecnico, Lisbon, Portugal
fDate :
9/16/1999 12:00:00 AM
Abstract :
A polyphase switched-capacitor (SC) IIR Hubert transformer with reduced sensitivity to finite opamp gain and bandwidth is proposed for high frequency applications. Low sensitivity is achieved by applying a predictive correlated-double-sampling (CDS) technique. Theoretical analysis and SWITCAP simulation results are given
Keywords :
IIR filters; active filters; circuit simulation; signal sampling; switched capacitor filters; SWITCAP simulation; finite bandwidth; finite gain; high frequency applications; opamp gain; polyphase SC IIR Hubert transformer; predictive correlated-double-sampling technique;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19991137
