一个简单的高频CMOS晶体管

Conference Proceeding IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 1989-06-01 DOI:10.1109/PACRIM.1989.48309

S.P. Singh, J. Hanson, J. Vlach

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引用次数: 0

摘要

提出了一种仅使用两个晶体管的晶体管。它基于标准逆变器配置，不需要NMOS和PMOS晶体管或电源电压的匹配。非线性的减小是通过保持零偏移条件来实现的。电路不受体效应变化的影响，因为源和基板连接到固定电压。虽然逆变器具有低信号电平处理能力(约=300 mV，总谐波失真为1%)，但可以通过使用两个逆变器来改进。这导致一个更大的动态范围，并没有明显的影响带宽。在此基础上，研制了一种能独立调节质量因数和单位增益频率的宽带积分器。

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A simple high frequency CMOS transconductor

A transconductor utilizing only two transistors is presented. It is based upon standard inverter configurations and does not need matching of NMOS and PMOS transistors or of the power supply voltages. The reduction in nonlinearity is achieved by maintaining a zero offset condition. The circuit is not affected by variations in body effect as sources and substrates are connected to fixed voltages. Although the inverter has a low signal level handling capability ( approximately=300 mV for a total harmonic distortion of 1%), it can be improved by utilizing two inverters. This leads to a larger dynamic range and has no noticeable effect on the bandwidth. On the basis of this transconductor, a wideband integrator is developed, with independent adjustment of quality factor and unity-gain frequency.<>

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Conference Proceeding IEEE Pacific Rim Conference on Communications, Computers and Signal Processing

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