International Display Workshops General Incorporated Association

Proceedings of the International Display Workshops Volume 30 (IDW '23)

Proceedings of the International Display Workshops Volume 30 (IDW '23)

Dec 6, 2023 - Dec 8, 2023
TOKI MESSE Niigata Convention Center

5:40 PM - 6:00 PM

[FLX1-4] Characterization of a-IGZO TFT-based Operational Amplifier and Comparator for High-Speed Analog-to-Digital Converter on Flexible Substrate

*Sara Hong1, Aris Siskos2,3, Jung-Hoon Chun1, Wim Dehaene3, Yong-Sang Kim1, Kris Myny2,3, Nikolas Papadopoulos2 (1. Sungkyunkwan University (Korea), 2. imec (Belgium), 3. KU Leuven (Belgium))

operational amplifier (Op-Amp), comparator, analog-to-digital converter (ADC), thin-film transistor (TFT)

https://doi.org/10.36463/idw.2023.1108

In this work, a characterization of an operational amplifier (Op-Amp) and a latch comparator based on amorphous indium gallium zinc oxide (a-IGZO) thin-film transistors (TFTs) used for an analog-to-digital converter (ADC), is reported. Statistical analysis is performed to investigate the uniformity of the circuits' offset and the DC gain of the Op-Amp. The Op-Amps presented at least 40 dB DC gain and about 70 mV input offset, ...