Demodulation of radio frequency interference in CMOS operational amplifiers

被引：0

作者：

Fiori, F ^{[1
]}

Crovetti, PS ^{[1
]}

机构：

[1] Politecn Torino, Dipartimento Elettron, Turin, Italy

来源：

IEICE TRANSACTIONS ON ELECTRONICS | 2003年 / E86C卷 / 11期

关键词：

operational amplifier; harmonic distortion; Volterra series; radio frequency interference; electromagnetic interference (EMI);

D O I：

暂无

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：

In this paper a second order Volterra series model of an operational amplifier (opamp) circuit is presented. Such a model is suitable to the investigation of the rectification and demodulation effects of radio frequency (RF) interference superimposed on the nominal input signals and on the power supply voltage of an opamp. On the basis of the new model, some design criteria to improve the immunity of opamps to RF interference are proposed. Model predictions are verified by comparison with experimental test results.

引用

页码：2309 / 2319

页数：11

共 17 条

[1]

FIORI F, 2001, EL COMP 2001 IEEE IN, V2, P1164

[2] NEW MACROMODELS AND MEASUREMENTS FOR THE ANALYSIS OF EMI EFFECTS IN 741 OP-AMP CIRCUITS [J].