Ultra-Low-Voltage Operation of CMOS Analog Circuits: Amplifiers, Oscillators, and Rectifiers

被引：26
|
作者：
Galup-Montoro, C. [1 ]
Schneider, M. C. [1 ]
Machado, M. B. [1 ]
机构：
[1] Univ Fed Santa Catarina, Dept Engn Eletr, BR-88040900 Florianopolis, SC, Brazil
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2012年 / 59卷 / 12期
关键词：
Colpitts oscillator; energy harvesting; MOSFET analog circuits; rectifier circuit; ultra-low-voltage circuits; zero-VT transistor; DESIGN; MV;
D O I：
10.1109/TCSII.2012.2231042
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter presents MOS analog circuits that can operate with very low supply voltages. Operation of the MOS transistor in the triode region is emphasized owing to the limited voltages available. Special attention has been given to the properties of the zero-VT transistor due to its high drive capability at low voltages. Simulation and measurement results for a Colpitts oscillator prototype set up around a zero-VT MOSFET demonstrated that the oscillator operates with supply voltages lower than the thermal voltage kT/q. Finally, ultra-low-voltage rectifiers using diodes or diode-connected MOSFETs operating in weak inversion are analyzed.
引用
收藏
页码：932 / 936
页数：5
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