Design of CMOS buffer

Low voltage buffer plays a vital role in modern world due to the industry of IoT, medical device, consumer electronic, energy harvesting and wearable technology is growing tremendously. Hence, it is crucial to design a low voltage buffer. This report introduces a low voltage buffer design by applyin...

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Main Author: Chan, Khang Yie
Other Authors: Chan Pak Kwong
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2024
Subjects:
Online Access:https://hdl.handle.net/10356/176825
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1768252024-05-24T15:43:30Z Design of CMOS buffer Chan, Khang Yie Chan Pak Kwong School of Electrical and Electronic Engineering epkchan@ntu.edu.sg Engineering CMOS buffer Low voltage buffer plays a vital role in modern world due to the industry of IoT, medical device, consumer electronic, energy harvesting and wearable technology is growing tremendously. Hence, it is crucial to design a low voltage buffer. This report introduces a low voltage buffer design by applying the subthreshold working region to the transistors to achieve low voltage and wide output swing range. The buffer designed is applied with shunt feedback to decrease the output impedance. The buffer is also embedded to an operational transconductance amplifier (OTA) to form an operational amplifier. The OTA is designed by using folded cascode topology and the transistors are biased in subthreshold region to achieve high output swing. The input stage of the OTA is the complimentary input stage to achieve rail-to-rail input common mode range. The transistors are also biased in subthreshold region to achieve high transconductance, hence provide high gain. The final circuit is an operational amplifier with embedded buffer and the performance is discussed. Bachelor's degree 2024-05-20T00:50:37Z 2024-05-20T00:50:37Z 2024 Final Year Project (FYP) Chan, K. Y. (2024). Design of CMOS buffer. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/176825 https://hdl.handle.net/10356/176825 en application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering
CMOS buffer
spellingShingle Engineering
CMOS buffer
Chan, Khang Yie
Design of CMOS buffer
description Low voltage buffer plays a vital role in modern world due to the industry of IoT, medical device, consumer electronic, energy harvesting and wearable technology is growing tremendously. Hence, it is crucial to design a low voltage buffer. This report introduces a low voltage buffer design by applying the subthreshold working region to the transistors to achieve low voltage and wide output swing range. The buffer designed is applied with shunt feedback to decrease the output impedance. The buffer is also embedded to an operational transconductance amplifier (OTA) to form an operational amplifier. The OTA is designed by using folded cascode topology and the transistors are biased in subthreshold region to achieve high output swing. The input stage of the OTA is the complimentary input stage to achieve rail-to-rail input common mode range. The transistors are also biased in subthreshold region to achieve high transconductance, hence provide high gain. The final circuit is an operational amplifier with embedded buffer and the performance is discussed.
author2 Chan Pak Kwong
author_facet Chan Pak Kwong
Chan, Khang Yie
format Final Year Project
author Chan, Khang Yie
author_sort Chan, Khang Yie
title Design of CMOS buffer
title_short Design of CMOS buffer
title_full Design of CMOS buffer
title_fullStr Design of CMOS buffer
title_full_unstemmed Design of CMOS buffer
title_sort design of cmos buffer
publisher Nanyang Technological University
publishDate 2024
url https://hdl.handle.net/10356/176825
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