多输出端电流模式全差分积分器实现带通滤波器的方法及仿真

江金光; 何怡刚

多输出端电流模式全差分积分器实现带通滤波器的方法及仿真

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出版历程
- 收稿日期: 2002-07-25
- 修回日期: 2002-12-23
- 刊出日期: 2003-12-19

Realization and Simulation of Band-Pass Filter Based on MCDI

摘要

摘要: 该文提出了利用低电压多输出端电流模式全差分积分器(MCDI)设计实现连续时间电流模式滤波器的方法.分析并模拟了MCDI及所提出的滤波器的特性,应用3.3V,0.5m,CMOS工艺参数仿真得到的二阶带通滤波器功耗仅为0.6mW左右,且其中心频率可在很宽的范围内调控.此外,这种滤波器还具有结构简单、对称性好、失真小等优点,适于全集成.
- 全差分式;低电压、低功耗;电流模式积分器;连续时间滤波器
Abstract: A methodology to realize continuous-time current-mode filters using low-voltage Multi-output Current-mode Differential Integrator (MCDI) is presented. At first, the char-acteristics of MCDI and the proposed filters which employ MCDI are analyzed and simu-lated. Simulation results not only predict second-order band-pass filter dissipating as little as 0.6mW power or so with 3.3V power supply using 0.5/xm CMOS technology, while the center frequency of which can be tuning in a wide range, but also with the advantages such as simple structure, good symmetry, low harmonic distortion, and suitable for integration.

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参考文献(1)

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