A noise-shaping accelerometer interface circuit for two-chip implementation

被引：0

作者：

Kajita, T ^{[1
]}

Moon, UK ^{[1
]}

Temes, GC ^{[1
]}

机构：

[1] Oregon State Univ, Dept Elect & Comp Engn, Corvallis, OR 97331 USA

来源：

VLSI DESIGN | 2002年 / 14卷 / 04期

关键词：

sensor; delta-sigma; interface; force feedback; mismatch shaping; acceleration;

D O I：

10.1080/10655140290011168

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper introduces a new architecture for sensor interface circuits using a delta-sigma modulator. The three-level force feedback allows the use of a digital compensator to stabilize the loop. A 3rd-order delta-sigma structure shapes the op-amp noise and allows a two-chip implementation with high loop gain at low frequencies.

引用

页码：355 / 361

页数：7