Design considerations on very high resolution sigma-delta modulators

Author

Brigati, S. ; Francesconi, F. ; Liberali, V. ; Maloberti, F. ; Malcovati, P. ; Poletti, M.

Author_Institution

Micronova Sistemi S.r.l., Pavia, Italy

Volume

1

fYear

1997

fDate

3-6 Aug 1997

Firstpage

285

Abstract

This paper describes theoretical limits and practical considerations concerning the design of high resolution (SNR>100 dB) sigma-delta A/D converters. By looking at a series of constraints affecting the design of basic devices and building blocks, we discuss important aspects of the theory of high-order single-loop modulators and find limitations to the maximum signal-to-noise ratio as a function of the power consumption and the sampling frequency. Moreover, starting from the theoretical results, we show how to optimize the modulator performance with behavioral simulations

Keywords

circuit noise; modulators; sigma-delta modulation; thermal noise; 100 dB; A/D converters; behavioral simulations; high-order single-loop modulators; maximum SNR; power consumption; sampling frequency; sigma-delta modulators; signal-to-noise ratio; very high resolution ADC; Baseband; Circuit noise; Delta-sigma modulation; Energy consumption; Frequency; Noise level; Quantization; Sampling methods; Signal to noise ratio; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on

Conference_Location

Sacramento, CA

Print_ISBN

0-7803-3694-1

Type

conf

DOI

10.1109/MWSCAS.1997.666089

Filename

666089