论文信息 - Dual-path delta-sigma modulators

Dual-path delta-sigma modulators

In this paper, we present a dual-path delta-sigma modulator (DSM) which is especially effective when a digital correlation algorithm is used to correct the DAC errors. Unlike the dynamic element matching methods, this correction algorithm is over-sampling-ratio (OSR) independent. It can accurately extract the nonlinear error of each DAC unit element, and cancel these errors in the digital domain. An efficient and economical circuit configuration of this novel structure has been found and is discussed in the paper

G.C. Temes | Zhenyong Zhang | J. Steensgaard

[1] Xuesheng Wang. A fully digital technique for the estimation and correction of the DAC error in multi-bit delta sigma ADCs , 2003 .

[2] Gabor C. Temes,et al. Experimental verification of a correlation-based correction algorithm for multi-bit delta-sigma ADCs , 2004, Proceedings of the IEEE 2004 Custom Integrated Circuits Conference (IEEE Cat. No.04CH37571).