数字控制平衡输出晶体管:CMOS的实现与应用

Proceedings of the 12th IEEE International Conference on Fuzzy Systems (Cat. No.03CH37442) Pub Date : 1900-01-01 DOI:10.1109/ICM.2003.238615

S. Mahmoud, I. A. Awad

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引用次数: 6

摘要

提出并分析了一种数字控制平衡输出晶体管(dbota)。所提出的dbota是基于给定的BOTA和MOS开关。dbota跨导可在2/sup n-1/次范围内使用n位控制字进行调节。提出了一种宽带数字控制变增益放大器(DCVGA)和一种基于DCBOTA的六阶低通滤波器。该滤波器具有增益和截止频率独立控制的优点。仿真结果验证了分析的正确性。

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Digitally controlled balanced output transconductor: CMOS realization and applications

A digitally controlled balanced output transconductor (DCBOTA) is proposed and analyzed. The proposed DCBOTA is based on the BOTA given and MOS switches. The DCBOTA transconductance is tunable in a range of 2/sup n-1/ times using n bits control word. A wide band digitally controlled variable gain amplifier (DCVGA) and a six order lowpass filter based on the DCBOTA are presented. The proposed filter has the advantage of independent control of gain and cutoff frequency. Simulations results are included to verify the analysis.

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来源期刊

Proceedings of the 12th IEEE International Conference on Fuzzy Systems (Cat. No.03CH37442)

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