Analysis and Design of High-Energy-Efficiency Amplifiers for Delta-Sigma Modulators

被引：0
|
作者：
Lai, Jinze [1 ]
Lin, Yuxuan [1 ]
Zhao, Gumeng [1 ]
Huang, Lijie [1 ]
Wei, Cong [1 ]
Wei, Rongshan [1 ]
Hu, Wei [1 ]
机构：
[1] Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou, Peoples R China
来源：
ACTIVE AND PASSIVE ELECTRONIC COMPONENTS | 2023年 / 2023卷
基金：
中国国家自然科学基金;
关键词：
LOW-POWER; SAR ADC; VOLTAGE;
D O I：
10.1155/2023/2265990
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 study presents a dynamic amplifier with high energy efficiency and high gain suitable for a delta-sigma modulator based on the floating-inverter amplifier (FIA), in-depth analysis of the existing FIA and its improved structure, and simulation verification. Compared with other FIA structures, the proposed amplifier has a better compromise in terms of power consumption and stability, which was designed and simulated using the SMIC 180 nm CMOS technology. Under a 1.2 V power supply, the closed-loop direct current (DC) gain and the output swing were about 104 dB and +/- 380 mV, respectively, and the input-referred in-band noise was about -100 dB with the chopper circuit.
引用
收藏
页数：13
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