Design of Cascode-Based Transconductance Amplifiers with Low-Gain PVT Variability and Gain Enhancement Using a Body-Biasing Technique

被引：0
|
作者：
Pereira, Nuno [1 ]
Oliveira, Luis B. [1 ]
Goes, Joao [1 ]
机构：
[1] UNL, DEE, P-2829516 Caparica, Portugal
来源：
TECHNOLOGICAL INNOVATION FOR THE INTERNET OF THINGS | 2013年 / 394卷
关键词：
amplifier; body-biasing; CMOS analog circuits; PVT compensation;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A body-biasing compensation scheme based on two proportional-to-absolute-temperature (PTAT) circuits is proposed to reduce the PVT variability of the DC gain of cascode amplifiers. A brief description of a basic PTAT is given as well as its application to cascode-based operational transconductance amplifiers. Simulation results show that the proposed compensated circuit amplifier exhibit a (DC) gain variability smaller than the original (uncompensated) circuit, while reaching a gain enhancement of about 3 dB.
引用
收藏
页码：590 / 599
页数：10
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