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

• 作者: Arash Ahmadpour Pooya Torkzadeh
• 来源期刊: 电路与系统(英文)
• 学科: 工学
• 关键词: BULK-DRIVEN FOLDED-CASCODE (BDFC) AMPLIFIER DC-Gain BULK-DRIVEN (BD) FOLDED-CASCODE (FC) CMOS
• 年，卷（期）: 2012,（2）
• 页码范围: 187-191
• 页数: 5页
• 分类号: TN7

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℃.