A chopping voltage reference without low-pass filter
In some bandgap voltage references, an operational amplifier is included in the design to stabilize the voltage of some points in the circuit towards abnormalities. However, the usage of opamp in the circuit will cause some non-idealities, such as 1/f noise and DC offset. To remove these non-idealit...
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sg-ntu-dr.10356-620212023-07-07T17:12:45Z A chopping voltage reference without low-pass filter Rizky Wirawan Pratama Chan Pak Kwong School of Electrical and Electronic Engineering Centre for Integrated Circuits and Systems DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits In some bandgap voltage references, an operational amplifier is included in the design to stabilize the voltage of some points in the circuit towards abnormalities. However, the usage of opamp in the circuit will cause some non-idealities, such as 1/f noise and DC offset. To remove these non-idealities, chopper stabilization technique will be introduced. Input signal to the opamp will be modulated at frequency above 1/f noise frequency and the output of the opamp will be demodulated back with additional low pass filter with large time constant. This project aims to investigate the circuit architecture which leads to low pass filterless design with UMC 65nm process. Bachelor of Engineering 2015-01-06T01:49:17Z 2015-01-06T01:49:17Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/62021 en Nanyang Technological University 20 p. application/pdf |
| institution |
Nanyang Technological University |
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Asia |
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Singapore Singapore |
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NTU Library |
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English |
| topic |
DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits |
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DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits Rizky Wirawan Pratama A chopping voltage reference without low-pass filter |
| description |
In some bandgap voltage references, an operational amplifier is included in the design to stabilize the voltage of some points in the circuit towards abnormalities. However, the usage of opamp in the circuit will cause some non-idealities, such as 1/f noise and DC offset. To remove these non-idealities, chopper stabilization technique will be introduced. Input signal to the opamp will be modulated at frequency above 1/f noise frequency and the output of the opamp will be demodulated back with additional low pass filter with large time constant. This project aims to investigate the circuit architecture which leads to low pass filterless design with UMC 65nm process. |
| author2 |
Chan Pak Kwong |
| author_facet |
Chan Pak Kwong Rizky Wirawan Pratama |
| format |
Final Year Project |
| author |
Rizky Wirawan Pratama |
| author_sort |
Rizky Wirawan Pratama |
| title |
A chopping voltage reference without low-pass filter |
| title_short |
A chopping voltage reference without low-pass filter |
| title_full |
A chopping voltage reference without low-pass filter |
| title_fullStr |
A chopping voltage reference without low-pass filter |
| title_full_unstemmed |
A chopping voltage reference without low-pass filter |
| title_sort |
chopping voltage reference without low-pass filter |
| publishDate |
2015 |
| url |
http://hdl.handle.net/10356/62021 |
| _version_ |
1772827799616225280 |