源退化ota的体积退化线性增强

2018 Second International Conference on Advances in Electronics, Computers and Communications (ICAECC) Pub Date : 2018-02-01 DOI:10.1109/ICAECC.2018.8479506

Utkarsh Sharma, Tanmay Dubey, Vijaya Bhadauria

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引用次数: 2

摘要

针对源退化ota，提出了一种改进的体退化技术。该方法采用漏极分压并将所得电压交叉耦合到差分对的本体端，从而降低了三次谐波失真(HD3)。在1.8 V电源的0.18 $\mu {\rm m}$工艺上进行了仿真，结果表明(HD3)与先前报道的体退化晶体管相比降低了14 dB(频率为100 KHz)。另一个优点是使用分压器电路的电阻比来改变直流跨导，从而提供跨导的可调性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Linearity Enhancement using Bulk-Degeneration for Source Degenerated OTAs

A modified bulk degeneration technique for source-degenerated OTAs is proposed in this paper. The approach employs drain voltage division and cross-coupling the resultant voltage to the bulk terminal of differential pair which reduces third harmonic distortion (HD3). Simulations are carried on 0.18 $\mu {\rm m}$ process with 1.8 V power supply which shows that (HD3) is decreased by 14 dB (for frequencies of 100 KHz) as compared to previously reported bulk degenerated transconductors. An added advantage is the variation of DC transconductance using the resistance ratio of the voltage divider circuit which offers the tunability in the transconductance.

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2018 Second International Conference on Advances in Electronics, Computers and Communications (ICAECC)

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