A 50MHz high-Q bandpass CMOS filter

被引：0
|
作者：
Manetakis, K
Toumazou, C
机构：
来源：
ISCAS '97 - PROCEEDINGS OF 1997 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS I - IV: CIRCUITS AND SYSTEMS IN THE INFORMATION AGE | 1997年
关键词：
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A high-speed bandpass continuous-time CMOS biquad filter based on the Gm-C technique is presented. The filter is to be used in a bandpass Sigma-Delta modulator with central frequency 50MHz. The quality factor Q of the filter is about 50. One of the most important specifications is the Spurious Free Dynamic Range (SFDR) which is a measure of the filter's immunity to spurious signals from third-order nonlinearities. Simulation results predict a SFDR of about 34dB with Q=50 and power dissipation 12.5mW. The design is based on a triode-region transconductor with negative resistance load and is designed for high tunability.
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页码：309 / 312
页数：4
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