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Design method for two-Stage CMOS operational amplifier applying load/miller capacitor compensation

Author

Listed:
  • Sadeqi, Abolfazl
  • Rahmani, Javad
  • Habibifar, Saeed
  • Ammar Khan, Muhammad
  • Mudassir Munir, Hafiz

Abstract

CMOS operational amplifiers (Op-amp) are present integral components in various analog circuit systems. Adding frequency compensation elements is the only critical solution for avoiding Op-amp instability. This article presents a designed two-stage CMOS Op-amp using a miller capacitor, a nulling resistor, and a common-gate current buffer for compensation purposes. All the design parameters of the proposed Op-amp were determined based on the corresponding equations of gain, slew rate, phase margin, power dissipation, etc. In order to verify the parameter values, the developed Op-amp circuit was simulated in HSPICE, possessing two critical characteristics: Op-amp with miller capacitor and a robust bias circuit. Afterwards, the expected values from the theoretical section were compared with simulation results thus proving that the advanced method in this paper was validly designed and implemented. This technique promises a real-world scale Op-amp with high unity-gain, excessive input common-mode range voltage, reasonable gain bandwidth, and a practicable slew rate.

Suggested Citation

  • Sadeqi, Abolfazl & Rahmani, Javad & Habibifar, Saeed & Ammar Khan, Muhammad & Mudassir Munir, Hafiz, 2020. "Design method for two-Stage CMOS operational amplifier applying load/miller capacitor compensation," MPRA Paper 102931, University Library of Munich, Germany, revised 12 Mar 2020.
    • Handle: RePEc:pra:mprapa:102931
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    References listed on IDEAS

    as
    1. Moghaddam, Amir Kamyab & Ketabdar, Milad & Amir Ahmadian, Sepideh & Hoseini, Pedram & Pishdadakhgari, Mohammadali, 2017. "Experimental survey of energy dissipation in nappe flow regime in stepped spillway equipped with inclined steps and sill," MPRA Paper 94690, University Library of Munich, Germany, revised Apr 2017.
    2. Dolatiary, Soheil & Rahmani, Javad & Khalilzad, Zahra, 2018. "Optimum location of DG units considering operation conditions," MPRA Paper 94194, University Library of Munich, Germany, revised 2018.
    3. Rahmani, Fatemeh, 2018. "Electric Vehicle Charger Based on DC/DC Converter Topology," MPRA Paper 108310, University Library of Munich, Germany, revised 01 Jul 2018.
    4. Rahmani, Javad & Sadeqi, Abolfazl & Ayeh Mensah, Dennis Nii, 2020. "Self-Healing in LTE networks with unsupervised learning techniques," MPRA Paper 99770, University Library of Munich, Germany, revised 21 Feb 2020.
    5. Rahmani, Javad & Sadeghian, Ehsan & Dolatiary, Soheil, 2018. "Comparison between ideal and estimated pv parameters using evolutionary algorithms to save the economic costs," MPRA Paper 91708, University Library of Munich, Germany.
    6. M-Mahdi Naddaf-Sh & SeyedSaeid Hosseini & Jing Zhang & Nicholas A. Brake & Hassan Zargarzadeh, 2019. "Real-Time Road Crack Mapping Using an Optimized Convolutional Neural Network," Complexity, Hindawi, vol. 2019, pages 1-17, September.
    7. Rahmani, Fatemeh & Razaghian, Farhad & Kashaninia, Alireza, 2014. "High Power Two- Stage Class-AB/J Power Amplifier with High Gain and Efficiency," MPRA Paper 86867, University Library of Munich, Germany, revised May 2014.
    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    CMOS Analog Integrated Circuit; Compensation Circuit; Miller Capacitor; Operational Amplifier; Nulling Resistor;
    All these keywords.

    JEL classification:

    • L86 - Industrial Organization - - Industry Studies: Services - - - Information and Internet Services; Computer Software
    • O31 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives
    • Q26 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Recreational Aspects of Natural Resources
    • Q55 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Technological Innovation

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