A multi-channel gamma voltage generator using transient-enhanced buffer for high-resolution LCoS driver IC
This paper introduces a multi-channel programmable gamma voltage generator. Based on the characteristics of the gamma curve, the gamma correction system applies a two-stage adjustment and a three-region output structure. The proposed programmable preset circuit allows the chip to deliver a programmable initial gamma. By integrating a transient enhancement circuit into the Class AB buffer, the amplifier achieves improvements of 27.8%/30.7% in undershoot/overshoot voltages, respectively. It also features a slew rate of 13.4V/µs, a 0.1% settling time of 0.62µs, and a DC gain of 138dB.
Authors
- Hui Wang (ORCID: https://orcid.org/0000-0003-3897-3767)
- Junkai Zhang (ORCID: https://orcid.org/0000-0002-6407-6173)
- Zunkai Huang (ORCID: https://orcid.org/0000-0001-7501-8959)
- Tian Li (ORCID: https://orcid.org/0000-0001-7810-7711)
- Yingqi Feng (ORCID: https://orcid.org/0000-0003-2854-3974)
- Chenghe Yang
- Wenyu Yang (ORCID: https://orcid.org/0009-0009-1946-0940)
Institutions
- Chinese Academy of Sciences (CN)
- Shanghai Advanced Research Institute (CN)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- IEICE Electronics Express
- Published
- 2024-11-07
- DOI
- https://doi.org/10.1587/elex.21.20240593
- Citations
- 1
- Primary Topic
- Advancements in PLL and VCO Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.21
Funders
- Ministry of Industry and Information Technology of the People's Republic of China