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A Comparitive Study of On-Chip Clock Generators Using a-IGZO TFTs for Flexible Electronic Systems
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wadhwa, Nishtha Martins, Jorge Bahubalindruni, Pydi Ganga Deb, Sujay Barquinha, Pedro |
| Copyright Year | 2018 |
| Abstract | This paper presents a comparitive study of ring oscillators (RO) using amorphous Indium Gallium Zinc Oxide (a-IGZO) thin-film transistors (TFTs) to implement on-chip clock generator for flexible electronic systems. A five-stage RO has been implemented with different inverter topologies using IGZO TFTs, which includes Diode connected load, Capacitive bootstrapping (BS), Pseudo-CMOS and Pseudo-CMOS bootstrapping architectures. These topologies have been simulated using in-house IGZO TFT models under similar conditions using different power supplies (10 V, 15 V and 20 V) in cadence environment. Among all architechtures Capacitive bootstrapping RO has ensured highest frequency of operation in the order of MHz and an output swing of 82% of VDD. Whereas, Pseudo-CMOS based RO provides the lowest power consumption in the order of μW with an output swing of 57% of VDD. On the other hand, the combination of Pseudo CMOS and bootstrapping has ensured highest voltage swing of 95% of VDD. In terms of power delay product (PDP) BS RO is superior with respect to other topologies. This work provides a clear insight to the designer to choose a particular topology for given application, mainly for on-chip clock generation for flexible electronic systems based on the requirements. |
| Starting Page | 1 |
| Ending Page | 6 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1109/ifetc.2018.8583926 |
| Alternate Webpage(s) | https://research.unl.pt/ws/portalfiles/portal/15702333/A_Comparitive_Study_of_On_Chip_Clock_author_proof_.pdf |
| Alternate Webpage(s) | https://doi.org/10.1109/ifetc.2018.8583926 |
| Journal | 2018 International Flexible Electronics Technology Conference (IFETC) |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
