Title :
Adaptive sigma-delta modulation for use in DACs
Author :
Dunn, C. ; Sandler, M.
Author_Institution :
Dept. of Electron. & Electr. Eng., King´´s Coll., London, UK
fDate :
5/9/1996 12:00:00 AM
Abstract :
Adapting the loop filter in a sigma-delta modulator (SDM) increases the signal/noise ratio (SNR) at low input amplitudes, and also allows stable operation at high amplitudes where a fixed system would normally be unstable. Adaption is easily implemented in SDM digital/analogue converters (DACs)
Keywords :
circuit noise; digital-analogue conversion; sigma-delta modulation; DACs; SNR; adaptive sigma-delta modulation; digital/analogue converters; loop filter; sigma-delta modulator; signal/noise ratio;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960612
