A 10-bit resistor-floating-resistor-string DAC (RFR-DAC) for high color-depth LCD driver ICs

Chih Wen Lu*, Ping Yeh Yin, Ching Min Hsiao, Mau-Chung Chang, Yo Sheng Lin

*Corresponding author for this work

研究成果: Article同行評審

37 引文 斯高帕斯(Scopus)

摘要

This work proposes a novel resistor-floating-resistor-string digital-to-analog converter (RFR-DAC) architecture with a 10-bit resolution for liquid crystal display (LCD) driver applications. The proposed architecture improves the linearity of DAC, unifies its channel performance, and achieves a 10-bit resolution with a compact die size smaller than those of the state-of-the-art 10-bit DACs. The proposed RFR-DAC combines a 6-bit RDAC and a 4-bit FR-DAC (floating-resistor-string DAC) to offer unique two-voltage- selection and one-voltage-selection schemes without the need of unity-gain buffers to isolate parallel-connected resistor strings. A stacked floating class-AB control is also devised to bias the last output buffer stage. The 10-bit RFR-DAC prototypes are implemented using 0.35-μm/0.5-μm CMOS technology with the worst DNL/INL = 0.11/0.92 LSB via a two-voltage-selection scheme; and 1.37/1.45 LSB via a one-voltage-selection scheme.

原文English
文章編號6296727
頁(從 - 到)2454-2466
頁數13
期刊IEEE Journal of Solid-State Circuits
47
發行號10
DOIs
出版狀態Published - 12 九月 2012

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