A Common Drain Operational Amplifier Using Positive Feedback Integrated by Metal-Oxide TFTs

This paper presents a common-drain-based operational amplifier (OPAMP) fabricated by mono n-type indium-zinc-oxide (IZO) thin-film transistors (TFTs). Positive feedback technology is employed to the load TFTs by cross-coupled connection in order to boost the voltage gain of the common-drain differen...

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Autores principales:	Xiang-Lin Mei, Zhuo-Jia Chen, Wen-Xing Xu, Lei Zhou, Wei-Jing Wu, Jian-Hua Zou, Miao Xu, Lei Wang, Yu-Rong Liu, Jun-Biao Peng
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Cross-coupled common-drain indium-zinc-oxide (IZO) thin-film transistors (TFTs) positive feedback operational amplifier (OPAMP) Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/a5a4a67c43cf4d38b56295f18cf88e32
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spelling	oai:doaj.org-article:a5a4a67c43cf4d38b56295f18cf88e322021-11-19T00:01:33ZA Common Drain Operational Amplifier Using Positive Feedback Integrated by Metal-Oxide TFTs2168-673410.1109/JEDS.2021.3060954https://doaj.org/article/a5a4a67c43cf4d38b56295f18cf88e322021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9359656/https://doaj.org/toc/2168-6734This paper presents a common-drain-based operational amplifier (OPAMP) fabricated by mono n-type indium-zinc-oxide (IZO) thin-film transistors (TFTs). Positive feedback technology is employed to the load TFTs by cross-coupled connection in order to boost the voltage gain of the common-drain differential pair. The OPAMP exhibits an open-loop voltage gain (A<sub>v</sub>) of 27 dB over a −3 dB bandwidth (BW) of 8.4 kHz at a DC supply voltage of 10 V. The measured unity-gain frequency (UGF), phase margin (PM) and DC power consumption are 119.4 kHz, 36° and 0.96 mW, respectively. Moreover, the chip area of the proposed OPAMP is as small as 0.37 mm <inline-formula> <tex-math notation="LaTeX">$\times0.3$ </tex-math></inline-formula> mm since this concise topology needs only 10 TFTs.Xiang-Lin MeiZhuo-Jia ChenWen-Xing XuLei ZhouWei-Jing WuJian-Hua ZouMiao XuLei WangYu-Rong LiuJun-Biao PengIEEEarticleCross-coupledcommon-drainindium-zinc-oxide (IZO) thin-film transistors (TFTs)positive feedbackoperational amplifier (OPAMP)Electrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Journal of the Electron Devices Society, Vol 9, Pp 342-347 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Cross-coupled common-drain indium-zinc-oxide (IZO) thin-film transistors (TFTs) positive feedback operational amplifier (OPAMP) Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Cross-coupled common-drain indium-zinc-oxide (IZO) thin-film transistors (TFTs) positive feedback operational amplifier (OPAMP) Electrical engineering. Electronics. Nuclear engineering TK1-9971 Xiang-Lin Mei Zhuo-Jia Chen Wen-Xing Xu Lei Zhou Wei-Jing Wu Jian-Hua Zou Miao Xu Lei Wang Yu-Rong Liu Jun-Biao Peng A Common Drain Operational Amplifier Using Positive Feedback Integrated by Metal-Oxide TFTs
description	This paper presents a common-drain-based operational amplifier (OPAMP) fabricated by mono n-type indium-zinc-oxide (IZO) thin-film transistors (TFTs). Positive feedback technology is employed to the load TFTs by cross-coupled connection in order to boost the voltage gain of the common-drain differential pair. The OPAMP exhibits an open-loop voltage gain (A<sub>v</sub>) of 27 dB over a −3 dB bandwidth (BW) of 8.4 kHz at a DC supply voltage of 10 V. The measured unity-gain frequency (UGF), phase margin (PM) and DC power consumption are 119.4 kHz, 36° and 0.96 mW, respectively. Moreover, the chip area of the proposed OPAMP is as small as 0.37 mm <inline-formula> <tex-math notation="LaTeX">$\times0.3$ </tex-math></inline-formula> mm since this concise topology needs only 10 TFTs.
format	article
author	Xiang-Lin Mei Zhuo-Jia Chen Wen-Xing Xu Lei Zhou Wei-Jing Wu Jian-Hua Zou Miao Xu Lei Wang Yu-Rong Liu Jun-Biao Peng
author_facet	Xiang-Lin Mei Zhuo-Jia Chen Wen-Xing Xu Lei Zhou Wei-Jing Wu Jian-Hua Zou Miao Xu Lei Wang Yu-Rong Liu Jun-Biao Peng
author_sort	Xiang-Lin Mei
title	A Common Drain Operational Amplifier Using Positive Feedback Integrated by Metal-Oxide TFTs
title_short	A Common Drain Operational Amplifier Using Positive Feedback Integrated by Metal-Oxide TFTs
title_full	A Common Drain Operational Amplifier Using Positive Feedback Integrated by Metal-Oxide TFTs
title_fullStr	A Common Drain Operational Amplifier Using Positive Feedback Integrated by Metal-Oxide TFTs
title_full_unstemmed	A Common Drain Operational Amplifier Using Positive Feedback Integrated by Metal-Oxide TFTs
title_sort	common drain operational amplifier using positive feedback integrated by metal-oxide tfts
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/a5a4a67c43cf4d38b56295f18cf88e32
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A Common Drain Operational Amplifier Using Positive Feedback Integrated by Metal-Oxide TFTs

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