期刊名称：International Journal of VLSI Design & Communication Systems
印刷版ISSN：0976-1527
电子版ISSN：0976-1357
出版年度：2010
卷号：1
期号：3
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：Low power consumption, long battery life and portability are essential requirements of modern health monitoring products. Operational Transconductance Amplifier (OTA) operating in subthreshold region is an basic building block for low power health monitoring products design. An modified design of OTA which incorporates better linearity and increased output impedance has been discussed in this paper. The proposed OTA uses High-swing improved-Wilson current mirror for low power and low-frequency applications. The achieved linearity is about ± 1.9 volt and unity gain bandwidth (UGB) of 342.30 KHz at power supply of 0.9 volt which makes OTA to consume power in range of nanowatts. The proposed low voltage OTA implementation in design of self- tunable linear resistor has been presented in this paper. The circuit implementation has been done using standard 0.18 micron technology provided by TSMC on BSIM 3v3 level-53 model parameter and verified results through use of ELDO Simulator.
关键词：Bulk-input; Wilson mirror; Linear range; MOS resistor
