Towards asynchronous A-D conversion

被引：12

作者：

Kinniment, DJ ^{[1
]}

Gao, B ^{[1
]}

Yakovlev, AV ^{[1
]}

Xia, F ^{[1
]}

机构：

[1] Univ Newcastle Upon Tyne, Dept Elect & Elect Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

ADVANCED RESEARCH IN ASYNCHRONOUS CIRCUITS AND SYSTEMS - FOURTH INTERNATIONAL SYMPOSIUM | 1998年

关键词：

D O I：

10.1109/ASYNC.1998.666506

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Analog to digital (A-D) converters with a fixed conversion time are subject to errors due to metastability. These errors will occur in all converter designs with a bounded time for decisions, and are potentially severe. We estimate the frequency of these errors in a successive approximation converter, and compare the results with asynchronous designs using both a fully speed-independent, and a bundled data approach. It is shown that an asynchronous converter is more reliable than its synchronous counterpart, and that the bundled data design is also faster, on average, than the synchronous design. We also demonstrate trade-offs involved in asynchronous converter designs, such as speed, robustness to delay variations, circuit size and design scalability.

引用

页码：206 / 215

页数：10

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