A 30 pA/V-25 μA/V linear CMOS channel-length-modulation OTA

Yan Huang; Emmanuel M. Drakakis; Chris Toumazou

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A 30 pA/V-25 μA/V linear CMOS channel-length-modulation OTA

机译：30 pA / V-25μA/ V线性CMOS通道长度调制OTA

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摘要

A fully balanced highly linear CMOS operational transconductance amplifier (OTA) is presented. The proposed circuit combines a cross-coupled channel length modulation cell with a tunable-gain current mirror. Good linearity over a wide tuning range is achieved. As an example, the OTA has been used in designing a second-order tunable VCO. Both the OTA and the VCO have been fabricated in the AMS 0.35 μm CMOS process. Measured results show that the transconductance of the OTA ranges from 30pA/V to 25 μA/V, and the VCO achieves a tuning range from 6 Hz to 180 kHz.

机译：提出了一种完全平衡的高度线性CMOS运算跨导放大器（OTA）。所提出的电路将交叉耦合的信道长度调制单元与可调增益电流镜结合在一起。在很宽的调谐范围内都可以实现良好的线性度。例如，OTA已用于设计二阶可调VCO。 OTA和VCO均采用AMS 0.35μmCMOS工艺制造。测量结果表明，OTA的跨导范围为30pA / V至25μA/ V，VCO的调谐范围为6 Hz至180 kHz。

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来源
《Microelectronics journal》 |2009年第10期|1458-1465|共8页
作者
Yan Huang; Emmanuel M. Drakakis; Chris Toumazou;
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作者单位

Department of Bioengineering, Imperial College London, UK;

Department of Bioengineering, Imperial College London, UK;

Institute of Biomedical Engineering, Imperial College London, UK;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
CMOS; operational transconductance amplifier; channel length modulation; wide tuning range; VCO;

机译：CMOS;运算跨导放大器;信道长度调制;调谐范围广;压控振荡器;

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A 30 pA/V-25 μA/V linear CMOS channel-length-modulation OTA

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