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We propose here a fully Spice-oriented design algorithm of op-amps for attaining the maximum gains under low power consumptions and assigned slew-rates. Our optimization algorithm is based on a well-known steepest descent method combining with nonlinear programming. The algorithm is realized by equivalent RC circuits with ABMs (analog behavior models) of Spice. The gradient direction is decided by the analysis of sensitivity circuits. The optimum parameters can be found at the equilibrium point in the transient response of the RC circuit. Although the optimization time is much faster than the other design tools, the results might be rough because of the simple transistor models. If much better parameter values are required, they can be improved with Spice simulator and/or other tools.

- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E91-A No.9 pp.2426-2434

- Publication Date
- 2008/09/01

- Publicized

- Online ISSN
- 1745-1337

- DOI
- 10.1093/ietfec/e91-a.9.2426

- Type of Manuscript
- Special Section PAPER (Special Section on Nonlinear Theory and its Applications)

- Category
- Analysis, Modelng and Simulation

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Masayoshi ODA, Yoshihiro YAMAGAMI, Junji KAWATA, Yoshifumi NISHIO, Akio USHIDA, "Sensitivity Analysis and Optimization Algorithm --- Based on Nonlinear Programming ---" in IEICE TRANSACTIONS on Fundamentals,
vol. E91-A, no. 9, pp. 2426-2434, September 2008, doi: 10.1093/ietfec/e91-a.9.2426.

Abstract: We propose here a fully Spice-oriented design algorithm of op-amps for attaining the maximum gains under low power consumptions and assigned slew-rates. Our optimization algorithm is based on a well-known steepest descent method combining with nonlinear programming. The algorithm is realized by equivalent RC circuits with ABMs (analog behavior models) of Spice. The gradient direction is decided by the analysis of sensitivity circuits. The optimum parameters can be found at the equilibrium point in the transient response of the RC circuit. Although the optimization time is much faster than the other design tools, the results might be rough because of the simple transistor models. If much better parameter values are required, they can be improved with Spice simulator and/or other tools.

URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e91-a.9.2426/_p

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@ARTICLE{e91-a_9_2426,

author={Masayoshi ODA, Yoshihiro YAMAGAMI, Junji KAWATA, Yoshifumi NISHIO, Akio USHIDA, },

journal={IEICE TRANSACTIONS on Fundamentals},

title={Sensitivity Analysis and Optimization Algorithm --- Based on Nonlinear Programming ---},

year={2008},

volume={E91-A},

number={9},

pages={2426-2434},

abstract={We propose here a fully Spice-oriented design algorithm of op-amps for attaining the maximum gains under low power consumptions and assigned slew-rates. Our optimization algorithm is based on a well-known steepest descent method combining with nonlinear programming. The algorithm is realized by equivalent RC circuits with ABMs (analog behavior models) of Spice. The gradient direction is decided by the analysis of sensitivity circuits. The optimum parameters can be found at the equilibrium point in the transient response of the RC circuit. Although the optimization time is much faster than the other design tools, the results might be rough because of the simple transistor models. If much better parameter values are required, they can be improved with Spice simulator and/or other tools.},

keywords={},

doi={10.1093/ietfec/e91-a.9.2426},

ISSN={1745-1337},

month={September},}

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TY - JOUR

TI - Sensitivity Analysis and Optimization Algorithm --- Based on Nonlinear Programming ---

T2 - IEICE TRANSACTIONS on Fundamentals

SP - 2426

EP - 2434

AU - Masayoshi ODA

AU - Yoshihiro YAMAGAMI

AU - Junji KAWATA

AU - Yoshifumi NISHIO

AU - Akio USHIDA

PY - 2008

DO - 10.1093/ietfec/e91-a.9.2426

JO - IEICE TRANSACTIONS on Fundamentals

SN - 1745-1337

VL - E91-A

IS - 9

JA - IEICE TRANSACTIONS on Fundamentals

Y1 - September 2008

AB - We propose here a fully Spice-oriented design algorithm of op-amps for attaining the maximum gains under low power consumptions and assigned slew-rates. Our optimization algorithm is based on a well-known steepest descent method combining with nonlinear programming. The algorithm is realized by equivalent RC circuits with ABMs (analog behavior models) of Spice. The gradient direction is decided by the analysis of sensitivity circuits. The optimum parameters can be found at the equilibrium point in the transient response of the RC circuit. Although the optimization time is much faster than the other design tools, the results might be rough because of the simple transistor models. If much better parameter values are required, they can be improved with Spice simulator and/or other tools.

ER -