An Efficient Frequency Compensation Approach for Multi-Stage Cmos Amplifiers

An Efficient Frequency Compensation Approach for Multi-Stage Cmos Amplifiers Publisher

Khadem MS¹ ; Rezaei Borjlu S¹ ; Makkiabadi B²

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1. Department of Electrical Engineering, Ash.C., Islamic Azad University, Ashtian, Iran
2. Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran

Source: International Journal of Numerical Modelling: Electronic Networks, Devices and Fields Published:2025

Abstract

Leveraging Miller's concept, a general approach for multi-stage amplifier frequency compensation is proposed. The idea is repeating a Miller pattern on intermediate nodes. In this way Miller capacitor at the output of a differential gain stage, manipulates poles and zeros locations to achieve the desired frequency response. The idea is applied to four and five-stage amplifiers. The linear transfer function (TF) and poles-zeros formulations are calculated for both amplifiers while circuit implementations are simulated using 0.18 μm CMOS technology. According to both theoretical description and simulation results, the proposed frequency compensation appropriately stabilized the amplifier with excellent performance. Obtaining more than 13 MHz for GBW with 83° phase margin while whole the four-stage amplifier consumes less than 320 μW. Ample simulation results are provided to express the reliability and robustness of the proposed approach. In this view, the proposed compensation method besides its design methodology can be used for almost any analog and mix-mode systems such as modulators, sensors, and data converters. © 2025 John Wiley & Sons Ltd.

Style	Citing Format
MLA	Khadem MS, Rezaei Borjlu S, Makkiabadi B. "An Efficient Frequency Compensation Approach for Multi-Stage Cmos Amplifiers." International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, vol. 38, no. 3, 2025, pp. -.
APA	Khadem MS, Rezaei Borjlu S, Makkiabadi B (2025). An Efficient Frequency Compensation Approach for Multi-Stage Cmos Amplifiers. International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 38(3), -.
Chicago	Khadem MS, Rezaei Borjlu S, Makkiabadi B. "An Efficient Frequency Compensation Approach for Multi-Stage Cmos Amplifiers." International Journal of Numerical Modelling: Electronic Networks, Devices and Fields 38, no. 3 (2025): -.
Harvard	Khadem MS, Rezaei Borjlu S, Makkiabadi B (2025) 'An Efficient Frequency Compensation Approach for Multi-Stage Cmos Amplifiers', International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 38(3), pp. -.
Vancouver	Khadem MS, Rezaei Borjlu S, Makkiabadi B. An Efficient Frequency Compensation Approach for Multi-Stage Cmos Amplifiers. International Journal of Numerical Modelling: Electronic Networks, Devices and Fields. 2025;38(3):-.
BibTex	@article{ author = {Khadem MS and Rezaei Borjlu S and Makkiabadi B}, title = {An Efficient Frequency Compensation Approach for Multi-Stage Cmos Amplifiers}, journal = {International Journal of Numerical Modelling: Electronic Networks, Devices and Fields}, volume = {38}, number = {3}, pages = {-}, year = {2025} }
RIS	TY - JOUR AU - Khadem MS AU - Rezaei Borjlu S AU - Makkiabadi B TI - An Efficient Frequency Compensation Approach for Multi-Stage Cmos Amplifiers JO - International Journal of Numerical Modelling: Electronic Networks, Devices and Fields VL - 38 IS - 3 SP - EP - PY - 2025 ER -

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