A new CMOS programmable balanced output transconductor and application to a mixed mode universal filter suitable for VLSI

被引：13

作者：

Mahmoud, SA ^{[1
]}

Soliman, AM ^{[1
]}

机构：

[1] Cairo Univ, Elect & Commun Engn Dept, Fayoum Branch, Cairo, Egypt

来源：

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 1999年 / 19卷 / 03期

关键词：

transconductors; filters;

D O I：

10.1023/A:1008375812681

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A new CMOS programmable balanced output transconductor (BOTA) is introduced. The BOTA is a useful block for continuous-time analog signal processing. A new CMOS realization based on MOS transistors operating in the saturation region is given. Application of the BOTA in realizing a mixed mode universal filter using six BOTAs and two grounded capacitors is also introduced. The filter's gain can be adjusted simply by varying the amplitude of a transconductance through its control voltage without affecting omega(0) and Q of the filter. Also, the Q of the filter can be adjusted by a single transconductor independent of omega(0). PSpice simulation results for the BOTA circuit and for the universal filter are also given.

引用

页码：241 / 254

页数：14

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