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56‐3: Student Paper: An Amplifier with Higher Gain Using Corbino—TFTs
Author(s) -
Lee Woo-Rim,
Jo Jae-Hee,
Mativenga Mallory,
Chung Hoon-Ju,
Lee Seung-Woo
Publication year - 2021
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14800
Subject(s) - amplifier , thin film transistor , transistor , voltage , signal (programming language) , operational amplifier , electrical engineering , optoelectronics , computer science , materials science , physics , electronic engineering , engineering , cmos , layer (electronics) , composite material , programming language
In this paper, an amplifier circuit using oxide TFTs for amplifying brain signal is proposed. The proposed circuit is largely composed of two TFTs. It consists of a driving transistor that receives an input and a load transistor that determines the voltage gain through interaction with the driving transistor. Based on depletion load inverting amplifier, we analyzed the small signal modeled circuit. By using a circular TFT called Corbino‐TFT, we were able to obtain a greater voltage gain. The measurement results were compared with the calculated voltage gain. In addition, to get a higher gain, method of connecting two amplifiers in series is presented and simulation results are also presented.