上海交通大学学报（英文版） ›› 2011, Vol. 16 ›› Issue (6): 648-651.doi: 10.1007/s12204-011-1205-5

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Optimization Design of Two-Stage Operational Amplifier with Frequency Compensation via Geometric Programming

LI Dan  (李   丹),    RONG Meng-tian   (戎蒙恬),    SHU Guo-hua   (殳国华)    

  1. (School of Electronic Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)  
  • 收稿日期:2009-08-03 出版日期:2011-12-30 发布日期:2012-01-12
  • 通讯作者: LI Dan (李 丹) E-mail:lidan@sjtu.edu.cn

Optimization Design of Two-Stage Operational Amplifier with Frequency Compensation via Geometric Programming

LI Dan  (李   丹),    RONG Meng-tian   (戎蒙恬),    SHU Guo-hua   (殳国华)    

  1. (School of Electronic Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)  
  • Received:2009-08-03 Online:2011-12-30 Published:2012-01-12
  • Contact: LI Dan (李 丹) E-mail:lidan@sjtu.edu.cn

摘要：  An optimization design technique to
obtain global solution for a two-stage operational amplifier
(op-amp) with frequency compensation is presented. This frequency
compensation technique can adjust the equivalent resistance to
guarantee that the phase margin is stable even though circumstance
temperature varies. Geometric programming is used to optimize the
component values and transistor dimensions.  It is used in this
analog integrated circuit design to calculate these parameters
automatically.  This globally optimal amplifier obtains minimum power
while other specifications are fulfilled.

关键词: frequency compensation, two-stage operational
amplifier (op-amp), geometric programming, global optimization

Abstract:  An optimization design technique to
obtain global solution for a two-stage operational amplifier
(op-amp) with frequency compensation is presented. This frequency
compensation technique can adjust the equivalent resistance to
guarantee that the phase margin is stable even though circumstance
temperature varies. Geometric programming is used to optimize the
component values and transistor dimensions.  It is used in this
analog integrated circuit design to calculate these parameters
automatically.  This globally optimal amplifier obtains minimum power
while other specifications are fulfilled.

Key words: frequency compensation, two-stage operational
amplifier (op-amp), geometric programming, global optimization

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