Performance Analysis Of Ultra Low-Voltage Rail-to-Rail Comparator In 130 nm CMOS Technology

被引:3
|
作者
Nagy, Lukas [1 ]
Arbet, Daniel [1 ]
Kovac, Martin [1 ]
Potocny, Miroslav [1 ]
Sovcik, Michal [1 ]
Stopjakova, Viera [1 ]
机构
[1] Slovak Univ Technol Bratislava, Fac Elect Engn & Informat Technol, Inst Elect & Photon, Bratislava, Slovakia
来源
关键词
Bulk-Driven; Low-Power; Low-Voltage; Rail-to-Rail; Comparator;
D O I
10.1109/africon46755.2019.9133843
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 paper discusses a performance of an ultra low-voltage / low-power voltage bulk-driven comparator, designed and fabricated in standard twin-well 130 nm CMOS technology. The proposed circuit topology can handle the input voltage within rail-to-rail range and is capable of working in industrial temperature range from -20 to 85 degrees C and with power supply voltage as low as V-DD = 0.4 V. It can also operate with three different levels of hysteresis, selected by 2-bit input digital code. The topology can be easily modified to contain enable feature and hence, mimic a behavior of dynamic (clocked) comparator. The measurement results obtained from fabricated prototype chips are presented and discussed as well. An excellent correlation between the post-layout simulations and the measured bench data has been observed. The presented novel silicon-proven topology has been successfully employed in power management unit and voltage regulation loop, voltage-to-frequency converter and opamp input offset calibration block.
引用
收藏
页数:5
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