'Institute of Electrical and Electronics Engineers (IEEE)'
Doi
Abstract
An arbitrary order sigma-delta modulator cascude
architecture is presented with only I-bit loss of resolution due to
scaling issues, even with single-bit quantizulion. This loss is kept
with a high overloading point, regardless of the order. Simulations
reveol that circuit imperfections can be tolerated up to 6th order, so
that 90-dB SNDR can be obtained with x16 oversampling, without
multi-bit quantization.European Commission 2001-34283/TAMES-2Ministerio de Ciencia y Tecnología TIC2001-0929/ADAVER