Design of a fully differential controlled gain open-loop wideband amplifier with common-mode feedback
This project designs a Fully-Differential Controlled-Gain Open-Loop Wideband Amplifier with Common-Mode Feedback with 55nm Global Foundry Process. The specifications of this circuit are being verified through rigorous simulation by varying process corners, supply voltage and temperature. Based on th...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2024
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| Online Access: | https://hdl.handle.net/10356/176342 |
| _version_ | 1826112570967195648 |
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| author | Chai, Song Hang |
| author2 | Siek Liter |
| author_facet | Siek Liter Chai, Song Hang |
| author_sort | Chai, Song Hang |
| collection | NTU |
| description | This project designs a Fully-Differential Controlled-Gain Open-Loop Wideband Amplifier with Common-Mode Feedback with 55nm Global Foundry Process. The specifications of this circuit are being verified through rigorous simulation by varying process corners, supply voltage and temperature. Based on the pre-layout simulation result, this circuit achieve an open-loop gain of 18.48dB and a unity gain bandwidth of 827MHz with a load capacitor of 92.7784fF on each side. Meanwhile, the output common-mode voltage is controlled by the CMFB circuit to stay at 0.75V while achieving a minimum output voltage of 0.08366V and a maximum voltage of 1.421V. The is also able to reject the power supply noise at a rate of PSRR+ = 214.3471dB and PSRR- = 251.67dB, it can also reject common mode noise with CMRR = 307.0127dB and provide a total harmonic distortion of -39.41dB. Finally, the power dissipation of this circuit when the supply voltage is 1.5V is 0.7204mW. Also, layout is drawn for this circuit and post-layout simulation is also being performed. This circuit has a layout area of 26.137μm×32.084μm. |
| first_indexed | 2024-10-01T03:09:15Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/176342 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:09:15Z |
| publishDate | 2024 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1763422024-05-17T15:45:27Z Design of a fully differential controlled gain open-loop wideband amplifier with common-mode feedback Chai, Song Hang Siek Liter School of Electrical and Electronic Engineering ELSIEK@ntu.edu.sg Engineering Fully differential wideband amplifier This project designs a Fully-Differential Controlled-Gain Open-Loop Wideband Amplifier with Common-Mode Feedback with 55nm Global Foundry Process. The specifications of this circuit are being verified through rigorous simulation by varying process corners, supply voltage and temperature. Based on the pre-layout simulation result, this circuit achieve an open-loop gain of 18.48dB and a unity gain bandwidth of 827MHz with a load capacitor of 92.7784fF on each side. Meanwhile, the output common-mode voltage is controlled by the CMFB circuit to stay at 0.75V while achieving a minimum output voltage of 0.08366V and a maximum voltage of 1.421V. The is also able to reject the power supply noise at a rate of PSRR+ = 214.3471dB and PSRR- = 251.67dB, it can also reject common mode noise with CMRR = 307.0127dB and provide a total harmonic distortion of -39.41dB. Finally, the power dissipation of this circuit when the supply voltage is 1.5V is 0.7204mW. Also, layout is drawn for this circuit and post-layout simulation is also being performed. This circuit has a layout area of 26.137μm×32.084μm. Bachelor's degree 2024-05-16T03:53:37Z 2024-05-16T03:53:37Z 2024 Final Year Project (FYP) Chai, S. H. (2024). Design of a fully differential controlled gain open-loop wideband amplifier with common-mode feedback. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/176342 https://hdl.handle.net/10356/176342 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering Fully differential wideband amplifier Chai, Song Hang Design of a fully differential controlled gain open-loop wideband amplifier with common-mode feedback |
| title | Design of a fully differential controlled gain open-loop wideband amplifier with common-mode feedback |
| title_full | Design of a fully differential controlled gain open-loop wideband amplifier with common-mode feedback |
| title_fullStr | Design of a fully differential controlled gain open-loop wideband amplifier with common-mode feedback |
| title_full_unstemmed | Design of a fully differential controlled gain open-loop wideband amplifier with common-mode feedback |
| title_short | Design of a fully differential controlled gain open-loop wideband amplifier with common-mode feedback |
| title_sort | design of a fully differential controlled gain open loop wideband amplifier with common mode feedback |
| topic | Engineering Fully differential wideband amplifier |
| url | https://hdl.handle.net/10356/176342 |
| work_keys_str_mv | AT chaisonghang designofafullydifferentialcontrolledgainopenloopwidebandamplifierwithcommonmodefeedback |