Low-voltage first-order fully differential CMOS all-pass filter with programmable pole-zero

被引:10
作者
Acosta, L. [1 ]
Ramirez-Angulo, J. [2 ]
Lopez-Martin, A. J. [3 ]
Carvajal, R. G. [1 ]
机构
[1] Univ Seville, Dept Elect Engn, Seville, Spain
[2] New Mexico State Univ, Klipsch Sch Elect & Comp Engn, Las Cruces, NM 88003 USA
[3] Univ Publ Navarra, Dept Elect & Elect Engn, Navarra, Spain
关键词
Bandpass filters - CMOS integrated circuits - All-pass filters - Light polarization - Poles;
D O I
10.1049/el.2009.3408
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 simple modification of the conventional first-order all-pass filter is introduced that provides it with a low-voltage fully differential operation with programmable pole-zero frequency. The modification is based on the inverting op-amp configuration and uses operational trans-conductance amplifiers instead of resistors not needing a buffered signal source or buffered op-amps as the conventional all-pass does. Experimental results verify that tuning capability is provided.
引用
收藏
页码:385 / U72
页数:2
相关论文
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