A Novel Active Feedback Frequency Compensation Scheme for Two-Stage OTA
A novel active feedback frequency compensation scheme is presented in this work. Based on the proposed technique, an amplifier with two main poles in its frequency bandwidth can be easily compensated by introducing a pole-zero pair in a local feedback. The proposed method is mathematically analyzed...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Iran University of Science and Technology
2019-09-01
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| Series: | Iranian Journal of Electrical and Electronic Engineering |
| Subjects: | |
| Online Access: | http://ijeee.iust.ac.ir/browse.php?a_code=A-10-2065-6&slc_lang=en&sid=1 |
| _version_ | 1818990885651611648 |
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| author | H. Faraji Baghtash Kh. Monfaredi |
| author_facet | H. Faraji Baghtash Kh. Monfaredi |
| author_sort | H. Faraji Baghtash |
| collection | DOAJ |
| description | A novel active feedback frequency compensation scheme is presented in this work. Based on the proposed technique, an amplifier with two main poles in its frequency bandwidth can be easily compensated by introducing a pole-zero pair in a local feedback. The proposed method is mathematically analyzed and then based on the derived formulations, a design procedure is established. The capability of the proposed technique is examined considering a well-known two-stage amplifier, considering just a trivial modification on its input stage. To gain an analogous and fair insight, the performance of the proposed structure is compared with that is of the optimally designed miller-compensated two-stage amplifier. The post-layout simulations are accomplished with TSMC 180nm CMOS standard technology. The Spectre post-layout simulations show that the proposed structure outperforms the traditional structure in terms of power consumption and gain bandwidth product. The robustness of the design is checked with Monte Carlo simulations. |
| first_indexed | 2024-12-20T20:01:29Z |
| format | Article |
| id | doaj.art-e86cbea97bff4d03a0c128cb0faf767a |
| institution | Directory Open Access Journal |
| issn | 1735-2827 2383-3890 |
| language | English |
| last_indexed | 2024-12-20T20:01:29Z |
| publishDate | 2019-09-01 |
| publisher | Iran University of Science and Technology |
| record_format | Article |
| series | Iranian Journal of Electrical and Electronic Engineering |
| spelling | doaj.art-e86cbea97bff4d03a0c128cb0faf767a2022-12-21T19:28:03ZengIran University of Science and TechnologyIranian Journal of Electrical and Electronic Engineering1735-28272383-38902019-09-01153321329A Novel Active Feedback Frequency Compensation Scheme for Two-Stage OTAH. Faraji Baghtash0Kh. Monfaredi1 Faculty of Electrical Engineering, Sahand University of Technology, Tabriz, Iran. Faculty of Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran A novel active feedback frequency compensation scheme is presented in this work. Based on the proposed technique, an amplifier with two main poles in its frequency bandwidth can be easily compensated by introducing a pole-zero pair in a local feedback. The proposed method is mathematically analyzed and then based on the derived formulations, a design procedure is established. The capability of the proposed technique is examined considering a well-known two-stage amplifier, considering just a trivial modification on its input stage. To gain an analogous and fair insight, the performance of the proposed structure is compared with that is of the optimally designed miller-compensated two-stage amplifier. The post-layout simulations are accomplished with TSMC 180nm CMOS standard technology. The Spectre post-layout simulations show that the proposed structure outperforms the traditional structure in terms of power consumption and gain bandwidth product. The robustness of the design is checked with Monte Carlo simulations.http://ijeee.iust.ac.ir/browse.php?a_code=A-10-2065-6&slc_lang=en&sid=1Low VoltageLow PowerFrequency CompensationOperational Amplifier. |
| spellingShingle | H. Faraji Baghtash Kh. Monfaredi A Novel Active Feedback Frequency Compensation Scheme for Two-Stage OTA Iranian Journal of Electrical and Electronic Engineering Low Voltage Low Power Frequency Compensation Operational Amplifier. |
| title | A Novel Active Feedback Frequency Compensation Scheme for Two-Stage OTA |
| title_full | A Novel Active Feedback Frequency Compensation Scheme for Two-Stage OTA |
| title_fullStr | A Novel Active Feedback Frequency Compensation Scheme for Two-Stage OTA |
| title_full_unstemmed | A Novel Active Feedback Frequency Compensation Scheme for Two-Stage OTA |
| title_short | A Novel Active Feedback Frequency Compensation Scheme for Two-Stage OTA |
| title_sort | novel active feedback frequency compensation scheme for two stage ota |
| topic | Low Voltage Low Power Frequency Compensation Operational Amplifier. |
| url | http://ijeee.iust.ac.ir/browse.php?a_code=A-10-2065-6&slc_lang=en&sid=1 |
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