On-glass operational amplifier using solution-processed a-IGZO TFTs

Daejung Kim, Keun-Yeong Choi, Hojin Lee
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引用次数: 2

Abstract

In this paper, we presented a novel operational amplifier (op-amp) only with solution-processed n-type amorphous indium-gallium-zinc oxide (a-IGZO) thin-film transistors (TFTs). The a-IGZO TFTs and common-source amplifier were fabricated on glass substrate through the solution process and confirmed to show stable electrical characteristics suitable for display driving circuits. Based on the experimental results, we designed an op-amp to have an overall gain of 30.5 dB, a cut-off frequency of 1.47 kHz, and a unit gain frequency of 6.65 kHz when supply voltage was ±15 V. Finally, by constituting the comparator, the proposed op-amp is expected to be used in power control and driving systems for display applications.
使用溶液处理的a-IGZO tft的玻璃上运算放大器
在本文中,我们提出了一种仅使用溶液处理的n型非晶铟镓锌氧化物(a- igzo)薄膜晶体管(TFTs)的新型运算放大器(运放)。采用溶液法在玻璃基板上制备了a-IGZO tft和共源放大器,并证实其具有稳定的电气特性,适合于显示驱动电路。根据实验结果,我们设计了一个在电源电压为±15 V时,总增益为30.5 dB,截止频率为1.47 kHz,单位增益频率为6.65 kHz的运放。最后,通过构成比较器,所提出的运算放大器有望用于显示应用的功率控制和驱动系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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