An Enhanced Bulk-Driven Folded-Cascode Amplifier in 0.18 µm CMOS Technology

作     者：Arash Ahmadpour Pooya Torkzadeh 

作者机构：Department of Electronic Engineering Islamic Azad University Lahijan Branch Lahijan Iran Department of Electronic Engineering Islamic Azad University Science and Research Branch Tehran Iran 

出 版 物：《Circuits and Systems》 (电路与系统（英文）)

年 卷 期：2012年第3卷第2期

页      面：187-191页

学科分类：080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：Bulk-Driven Folded-Cascode (BDFC) Amplifier DC-Gain Bulk-Driven (BD) Folded-Cascode (FC) CMOS 

摘      要：A new configuration of Bulk-Driven Folded-Cascode (BDFC) amplifier is presented in this paper. Due to this modifying, significant improvement in differential DC-Gain (more than 11 dB) is achieved in compare to the conventional structure. Settling behavior of proposed amplifier is also improved and accuracy more than 8 bit for 500 mV voltage swing is obtained. Simulation results using HSPICE Environment are included which validate the theoretical analysis. The amplifier is designed using standard 0.18 μm CMOS triple-well (level 49) process with supply voltage of 1.2 V. The correct functionality of this configuration is verified from –50℃ to 100℃.