Implementation of delta-sigma analog-to-digital converter in LTPS process

Chia Chi Tsai*, Tzu Ming Wang, Ming-Dou Ker

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)904-912
Number of pages9
JournalJournal of the Society for Information Display
Issue number11
StatePublished - 1 Nov 2010


  • Analog-to-digital converter (ADC)
  • Delta-sigma
  • Low-temperature polysilicon (LTPS)
  • System-on-panel (SOP)

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