Title :
Multibit oversampled Sigma - Delta A/D convertor with nonuniform quantisation
Author :
Zhang, Z. ; Temes, G.C.
Author_Institution :
Dept. Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
3/14/1991 12:00:00 AM
Abstract :
Nonuniformly quantised multibit oversampled Sigma - Delta A/D convertors are proposed which achieve high signal-to-noise ratio over a wide dynamic range. Simulation results are presented for first- and second-order 4 bit Sigma - Delta A/D convertors with companding internal quantisers.
Keywords :
analogue-digital conversion; quantisation; companding internal quantisers; dynamic range; first order; multibit oversampled Sigma - Delta A/D convertors; nonuniform quantisation; second order; signal-to-noise ratio;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910332
