Improved Frequency Compensation Technique for Three-Stage Amplifiers
Improved frequency compensation is proposed for a three-stage amplifier with reduced total capacitance, improved slew rate, and reduced settling time. The proposed compensation uses an auxiliary feedback to increase the total effective compensation capacitance without loading the output node. The pr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Journal of Low Power Electronics and Applications |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-9268/11/1/11 |
| _version_ | 1797541604564664320 |
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| author | Alejandro Roman Loera Anurag Veerabathini Luis Alejandro Flores Oropeza Luis Antonio Carrillo Martínez David Moro Frias |
| author_facet | Alejandro Roman Loera Anurag Veerabathini Luis Alejandro Flores Oropeza Luis Antonio Carrillo Martínez David Moro Frias |
| author_sort | Alejandro Roman Loera |
| collection | DOAJ |
| description | Improved frequency compensation is proposed for a three-stage amplifier with reduced total capacitance, improved slew rate, and reduced settling time. The proposed compensation uses an auxiliary feedback to increase the total effective compensation capacitance without loading the output node. The proposed compensation scheme is validated in simulation by implementing a three-stage amplifier driving 10 pF load capacitor in a 0.18 μm CMOS process. A detailed comparison of the compensation with a conventional nested Miller compensation is also presented. The simulation results showed a reduction in total compensation capacitance and improvement in slew rate compared to conventional nested Miller compensation and the other reported techniques in the literature. |
| first_indexed | 2024-03-10T13:18:19Z |
| format | Article |
| id | doaj.art-5e0d567501004e55aa9bc8079aaf6e50 |
| institution | Directory Open Access Journal |
| issn | 2079-9268 |
| language | English |
| last_indexed | 2024-03-10T13:18:19Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Low Power Electronics and Applications |
| spelling | doaj.art-5e0d567501004e55aa9bc8079aaf6e502023-11-21T10:13:03ZengMDPI AGJournal of Low Power Electronics and Applications2079-92682021-03-011111110.3390/jlpea11010011Improved Frequency Compensation Technique for Three-Stage AmplifiersAlejandro Roman Loera0Anurag Veerabathini1Luis Alejandro Flores Oropeza2Luis Antonio Carrillo Martínez3David Moro Frias4Electronic Systems Department, Universidad Autonoma de Aguascalientes, Aguascalientes 20131, MexicoElectrical & Computer Engineering, New Mexico State University, Las Cruces, NM 88003, USAElectronic Systems Department, Universidad Autonoma de Aguascalientes, Aguascalientes 20131, MexicoSchool of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64849, MexicoSchool of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64849, MexicoImproved frequency compensation is proposed for a three-stage amplifier with reduced total capacitance, improved slew rate, and reduced settling time. The proposed compensation uses an auxiliary feedback to increase the total effective compensation capacitance without loading the output node. The proposed compensation scheme is validated in simulation by implementing a three-stage amplifier driving 10 pF load capacitor in a 0.18 μm CMOS process. A detailed comparison of the compensation with a conventional nested Miller compensation is also presented. The simulation results showed a reduction in total compensation capacitance and improvement in slew rate compared to conventional nested Miller compensation and the other reported techniques in the literature.https://www.mdpi.com/2079-9268/11/1/11frequency compensationnested Miller compensationhigh slew ratelow settling timethree-stage amplifierRouth–Hurwitz stability criterion |
| spellingShingle | Alejandro Roman Loera Anurag Veerabathini Luis Alejandro Flores Oropeza Luis Antonio Carrillo Martínez David Moro Frias Improved Frequency Compensation Technique for Three-Stage Amplifiers Journal of Low Power Electronics and Applications frequency compensation nested Miller compensation high slew rate low settling time three-stage amplifier Routh–Hurwitz stability criterion |
| title | Improved Frequency Compensation Technique for Three-Stage Amplifiers |
| title_full | Improved Frequency Compensation Technique for Three-Stage Amplifiers |
| title_fullStr | Improved Frequency Compensation Technique for Three-Stage Amplifiers |
| title_full_unstemmed | Improved Frequency Compensation Technique for Three-Stage Amplifiers |
| title_short | Improved Frequency Compensation Technique for Three-Stage Amplifiers |
| title_sort | improved frequency compensation technique for three stage amplifiers |
| topic | frequency compensation nested Miller compensation high slew rate low settling time three-stage amplifier Routh–Hurwitz stability criterion |
| url | https://www.mdpi.com/2079-9268/11/1/11 |
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