Title :
A comparison of three parallel ΔΣ A/D converters
Author :
Eshraghi, Aria ; Fiez, Terri
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Washington State Univ., Pullman, WA, USA
Abstract :
One way to increase the conversion bandwidth of the Delta-Sigma (ΔΣ) A/D converter is to use parallelism. The three main types of parallel ΔΣ A/D converter which are practical for implementation are the time-interleaved, the parallel ΔΣ (ΠΔΣ), and the frequency band decomposition A/D converters. In this paper, it is shown that the operation of all three approaches can be explained using the same underlying theory. This common structure is then used to explore the design tradeoffs among these architectures
Keywords :
parallel architectures; sigma-delta modulation; ADC architectures; PI type; conversion bandwidth; delta-sigma ADCs; design tradeoffs; frequency band decomposition; parallel ΔΣ A/D converters; time-interleaved type; Analog-digital conversion; Clocks; Digital filters; Digital modulation; Matrix converters; Noise figure; Nonlinear filters; Quantization; Sampling methods; Transfer functions;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.539998
