Title :
Architectures for A/D conversion with optimal use of oversampling
Author :
Rocha, D. ; Leme, C. Azeredo ; Franca, J.
Author_Institution :
Dept. de Engenharia Electrotecnica e de Comput., Inst. Superior Tecnico, Lisbon, Portugal
Abstract :
In this paper we present new oversampled modulator architectures for A/D conversion. The objective is to obtain great simplification of the analog front-end circuits at the expense of a more complex digital signal processing for the bit stream decoding. The system can be segmented into a front-end block and a bitstream processor communicating through noise-immune signal lines. This makes possible the remote placement at the source site of a simple front-end circuit while preserving signal integrity
Keywords :
modulators; sigma-delta modulation; A/D conversion; analog front-end circuits; bit stream decoding; frontend remote placement; noise-immune signal lines; oversampled modulator architectures; oversampling ADC; signal integrity; Analog integrated circuits; Circuit noise; Decoding; Digital signal processing; Feedback circuits; Feedback loop; Linearity; Modulation coding; Remote sensing; Signal processing;
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.1996.539802
