单运放谐振腔五阶椭圆滤波器的设计

2014 International Conference on Advances in Electronics Computers and Communications Pub Date : 2014-10-01 DOI:10.1109/ICAECC.2014.7002448

Sunita Arvind Rathod, S. Yellampalli

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引用次数: 2

摘要

本文设计了一种带宽为40MHz的低功耗有源rc五阶椭圆滤波器。设计的滤波器基于单运放谐振腔，与标准滤波器设计相比，功耗更低，运放数量更少。首先利用MATLAB设计滤波器，得到五阶标准传递函数，进而计算滤波器的R和C值。所使用的运算放大器是米勒电容的两级运放。该滤波器原型采用180nm CMOS工艺设计，功耗为3.6542mW，电源电压为5Vpp。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Design of fifth order elliptic filter with single-opamp resonator

In this paper, a low-power, active-RC fifth order elliptic filter is designed with bandwidth of 40MHz. The filter designed is based on single-opamp resonator, which consumes less power compared to the standard filter design with less number of opamp. First filter is designed using MATLAB to get fifth order standard transfer function which is further used to calculate R and C values of the filter. The operational amplifier used is two stage opamp with miller capacitance. The filter prototype has been designed in 180nm CMOS process, consumes 3.6542mW with supply voltage of 5Vpp.

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2014 International Conference on Advances in Electronics Computers and Communications

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