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Inverter-Based Subthreshold Amplifier Techniques and Their Application in 03-V D
本文提出基于反相器的亚阈值放大器技术，显著提升0.3V工作下的性能与效率。
0.3V, 74.1-dB SNDR, 83.4-dB SFDR, 20-kHz带宽, 79.3μW
亚阈值放大器反相器OTA调制器低电压
▸基于反相器的亚阈值放大器结构
▸Miller补偿OTA与前馈补偿OTA设计
▸应用于DT-DSM和CT-DSM的低电压调制器
Abstract
Subthreshold amplifiers suffer from the limited volt-
age headroom which leaves little space for conventional analog
techniques to enhance performance and efficiency. This paper
presents an evolution process of implementing conventional struc-
tures with inverters, allowing ultralow-voltage operation with
increased flexibility in adopting traditional circuit techniques.
Based on the proposed inverter-based elementary structure and
CMFB, both the Miller-compensated (MC) operational transcon-
ductanc