A behavioral model of A/D converters using a mixed-mode simulator

Author

Ruan, Genhong

Author_Institution

Analogy Inc., Beaverton, OR, USA

Volume

26

Issue

3

fYear

1991

fDate

3/1/1991 12:00:00 AM

Firstpage

283

Lastpage

290

Abstract

A mixed-mode behavioral model of analog-to-digital (A/D) converters is described. A generalized model structure is introduced. The basic function of an A/D converter is to convert an analog voltage into a digital code, for example, a binary number. Three conversion methods (successive approximation, flash, and dual integration) which are commonly used in A/D converters are modeled and can be selected simply by specifying a parameter of the model. For brevity, only the successive-approximation method is described. The modeling considerations of various parts in the A/D converter, including the input amplifier, D/A converter, comparator, and the synchronization problem, are described. The model has been implemented in the Saber mixed-mode simulator. Simulation results are given

Keywords

analogue-digital conversion; comparators (circuits); digital simulation; A/D converters; D/A converter; Saber; behavioral model; comparator; input amplifier; mixed-mode simulator; successive approximation; synchronization problem; Analog-digital conversion; Circuit simulation; Clocks; Degradation; Digital-analog conversion; Feeds; Logic; Signal resolution; Synchronization; Voltage;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.75007

Filename

75007