On oscillation-based test structures of active RC filters

被引:1
|
作者
Zarnik, MS
Novak, F
机构
[1] Jozef Stefan Inst, Ljubljana 1001, Slovenia
[2] HIPOT, Sentjernej, Slovenia
关键词
analogue test; oscillation-based test; active RC tilters;
D O I
10.1002/jnm.422
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
The recently proposed oscillation-based test structures of active RC filters assume ideal opamps and test switches. In this letter, feasibility case study of the oscillation-based test structure of the resonant bandpass filter is presented in which non-ideal characteristics of the employed opamps and MOS switches are considered. Based on the dominant pole model for the opamps, rye derive expression for the minimum value of the resistance required to put the filter stage into oscillation and expression for the frequency of the undamped pole. Derived expressions describe the conditions for the implementation of the oscillation-based test in practice. Copyright (C) 2001 John Wiley & Sons, Ltd.
引用
收藏
页码:283 / 288
页数:6
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