Title :
Adaptive order reduction scheme for high-order single-bit ΔΣ Modulators
Author :
Bourdopoulos, George I.
Author_Institution :
Dept. of Phys., Univ. of Patras, Greece
fDate :
5/1/2004 12:00:00 AM
Abstract :
A scheme for achieving adaptive reduction in the order of the loop filter of usual high-order, single-stage, single-bit Delta-Sigma (ΔΣ) modulators is proposed in order to improve their performance. The resulting ΔΣ modulators can recover from instability effectively, having also an extended input signal range in comparison to that of the corresponding conventional ΔΣ modulators.
Keywords :
circuit noise; circuit stability; delta-sigma modulation; modulators; Δ-Σ modulators; adaptive order reduction; high-order modulators; loop filter; signal stabilization; signal-to-noise ratio; single-bit modulators; single-stage modulators; Adaptive filters; Amplitude modulation; Analog-digital conversion; Delta modulation; Digital modulation; Distributed feedback devices; Power supplies; Resonator filters; Signal to noise ratio; Stability; $ Delta Sigma $; Delta–Sigma; signal-to-noise ratio; stabilization;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2004.827549
