Continuous-time 4th order Butterworth low-pass filter for video frequency applications

被引：1
|
作者：
Sabadell, J [1 ]
Aldea, C [1 ]
Celma, S [1 ]
Martínez, PA [1 ]
机构：
[1] Univ Zaragoza, Fac Ciencias, Grp Diseno Elect, Dept Elect Engn, E-50009 Zaragoza, Spain
来源：
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2001年 / 28卷 / 01期
关键词：
continuous-time 4th order Butterworth low-pass filter; CMOS; video frequency range;
D O I：
10.1023/A:1011241702987
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a continuous-time 4th order Butterworth low-pass filter based on current-mode processing is presented for applications over the video frequency range. A new type of integrator in which both voltage and currents may be integrated is presented and used as the main active block. The filter has been implemented using a very low-cost 2.4 mum CMOS process (Mietec). The whole circuit occupies 2.8 mm(2) and consumes 19 mW from a +/-1.5 V supply. Experimental results are given for a 4.5 MHz to 12 MHz tunable low-pass filter with 58 dB of dynamic range at 10 MHz.
引用
收藏
页码：35 / 41
页数：7
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