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Minimum power Miller-compensated CMOS operational amplifiers

Meghdadi, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. Abstract:
  3. A new approach for the design of two-stage Miller-compensated CMOS op amps is presented. The paper studies the basic relations between power consumption, unitygain bandwidth, the biasing region, technology parameters, and the external capacitive load. As a result, simple and efficient design guides are provided to achieve the minimum possible power consumption for the given specifications and for short-channel devices. It is shown that the conventional design procedures do not always result in minimum power op amps. The presented results are also verified by Spectre simulations
  4. Keywords:
  5. Design optimization ; Gain-bandwidth product (GBW) ; Miller compensation ; Phase margin ; Stability ; Amplifiers (electronic) ; Analog integrated circuits ; Bandwidth ; Convergence of numerical methods ; Design ; Integrated circuit design ; Phase stability ; Product design ; Gain-bandwidth products ; Op amp ; Phase margins ; Operational amplifiers
  6. Source: Scientia Iranica ; Vol. 21, Issue. 6 , 2014 , pp. 2243-2249 ; e-ISSN :23453605
  7. URL: http://www.scientiairanica.com/en/ManuscriptDetail?mid=1442