Title :
A high pass switched capacitor ΣΔ modulator
Author :
O´Connell, I.J. ; Lyden, Colin
Author_Institution :
Nat. Microelectron. Res. Centre, Univ. Coll. Cork, Ireland
Abstract :
A high pass switched capacitor filter is proposed. The filter is immune to opamp imperfections such as DC offset and 1/f noise. The filter is incorporated within a high pass ΣΔ modulator which can digitise at the IF frequency.
Keywords :
1/f noise; circuit noise; high-pass filters; operational amplifiers; sampled data filters; sigma-delta modulation; switched capacitor filters; 1/f noise; DC offset; IF frequency digitisation; filter incorporation; high pass switched capacitor ΣΔ modulator; high pass switched capacitor filter; opamp imperfection immunity; Band pass filters; Capacitors; DC generators; Delta modulation; Design optimization; Filtering theory; Noise shaping; Poles and zeros; Prototypes; Transfer functions;
Conference_Titel :
Electronics, Circuits and Systems, 2002. 9th International Conference on
Print_ISBN :
0-7803-7596-3
DOI :
10.1109/ICECS.2002.1045395
