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Implementation of delta—sigma analog‐to‐digital converter in LTPS process
Author(s) -
Tsai ChiaChi,
Wang TzuMing,
Ker MingDou
Publication year - 2010
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid18.11.904
Subject(s) - decimation , delta sigma modulation , filter (signal processing) , analog to digital converter , digital filter , computer science , electronic engineering , voltage , sigma , successive approximation adc , digital to analog converter , electrical engineering , physics , capacitor , engineering , cmos , quantum mechanics , computer vision
Abstract— An on‐panel delta—sigma analog‐to‐digital converter (ADC) has been implemented and verified for 3‐μm low‐temperature polysilicon (LTPS) technology with two basic blocks: a delta—sigma modulator and a decimation filter. From the experimental results, the digital output from the delta—sigma modulator is correctly matched with the analog input voltage ratio such that the digital output can be converted into 8‐bit digital code successfully under a supply voltage of 10 V from the decimation filter. The implemented on‐panel delta—sigma ADC can be used for the application of temperature‐to‐digital converter on glass substrate.