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Optimization design of two-stage operational amplifier with frequency compensation via geometric programming

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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.

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Authors and Affiliations

  1. School of Electronic Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai, 200240, China

    Dan Li  (李 丹), Meng-tian Rong  (戎蒙恬) & Guo-hua Shu  (殳国华)

Authors
  1. Dan Li  (李 丹)
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  2. Meng-tian Rong  (戎蒙恬)
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  3. Guo-hua Shu  (殳国华)
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Corresponding author

Correspondence to Dan Li  (李 丹).

Additional information

Foundation item: the Shanghai Application Material (AM) Research Foundation (No. 08700740700)

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Li, D., Rong, Mt. & Shu, Gh. Optimization design of two-stage operational amplifier with frequency compensation via geometric programming. J. Shanghai Jiaotong Univ. (Sci.) 16, 648–651 (2011). https://doi.org/10.1007/s12204-011-1205-5

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  • DOI: https://doi.org/10.1007/s12204-011-1205-5

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