A MONOLITHIC 20-B DELTA-SIGMA A/D CONVERTER

被引：43

作者：

DELSIGNORE, BP

KERTH, DA

SOOCH, NS

SWANSON, EJ

机构：

[1] Crystal Semiconductor Corporation, Austin, TX

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 1990年 / 25卷 / 06期

关键词：

D O I：

10.1109/4.62174

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A monolithic 20-b analog-to-digital (A/D) converter employing oversampling techniques has been implemented in standard 3-μm CMOS technology. The integrated circuit contains a fourth-order delta-sigma modulator and a digital finite-impulse-response filter and decimator. The modulator consists of a continuous-time chopper-stabi-lized front end, and a switched-capacitor loop filter and comparator. The dynamic range is 123 dB over a dc to 500-Hz bandwidth and the signal-to-total-harmonic-distortion ratio is 126 dB. The chip consumes 125 mW of power and has an area of 29.25 mm2. © 1990 IEEE

引用

页码：1311 / 1317

页数：7

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