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P‐51: Design and Realization of Delta‐Sigma Analog‐To‐Digital Converter in LTPS Technology
Author(s) -
Tsai ChiaChi,
Ker MingDou,
Li YuHsuan,
Kuo ChungHung,
Li ChunHuai,
Hsieh YaoJen,
Liu ChunTing
Publication year - 2009
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 - 10.1889/1.3256530
Subject(s) - delta sigma modulation , realization (probability) , thin film transistor , electronic engineering , analog to digital converter , transistor , electronic circuit , voltage , electrical engineering , materials science , engineering , mathematics , cmos , statistics , layer (electronics) , composite material
A delta‐Sigma analog‐to‐digital (A/D) converter designed and implemented with the thin‐film transistors (TFTs) on glass substrate is proposed, which has been successfully verified in a 3‐μm low‐temperature polycrystalline silicon (LTPS) process. The experimental results have shown that the probability in the bit stream of the digital output from the delta‐Sigma modulator is correctly fit in the analog input voltage ratio. Such a bit stream can be converted into 8‐bit digital code successfully under the operation voltage of 10V with thin‐film transistors (TFTs) on the glass substrate. The proposed delta‐Sigma A/D converter can be further used to achieve the precise analog circuits for System‐on‐Panel (SOP) or System‐on‐Glass (SOG) applications, which enables the analog circuits to be integrated in the active matrix LCD (AMLCD) panels.