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Implementation of delta—sigma analog‐to‐digital converter in LTPS process |
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| Authors: | Chia‐Chi Tsai Tzu‐Ming Wang Ming‐Dou Ker |
| Affiliation: | 1. Nanoelectronics and Gigascale Systems Laboratory, Institute of Electronics, National Chiao Tung University, 1001 Ta‐Hsueh Rd., Hsinchu, Taiwan 200, ROC;2. Nanoelectronics and Gigascale Systems Laboratory, Institute of Electronics, National Chiao Tung University, and the Department of Electronic Engineering, I‐Shou University, Kaohsuing, Taiwan, ROC |
| Abstract: | 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. |
| Keywords: | Delta— sigma analog‐to‐digital converter (ADC) low‐temperature polysilicon (LTPS) system‐on‐panel (SOP) |
