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Design method for area-efficient and uniform channel DACs

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4 Author(s)
Yong-Joon Jeon ; Div. of Electr. Eng., KAIST, Daejeon, South Korea ; Jin-Yong Jeon ; Sung-Woo Lee ; Gyu-Hyeong Cho

A current-mode driving scheme has significant advantages over other competing driving method, and the scheme does not require the time-consuming threshold voltage sampling process used in recent voltage-mode driving methods. Design considerations for compact and uniform channel DACs in current-mode AMOLED display data drivers are addressed in detail. Furthermore, an 8 bit area-efficient cascaded-dividing DAC and a 9 bit segmented DAC are designed in accordance with the suggested DAC design method. The presented DACs perform outstandingly when compared in terms of a composite DAC performance that comprises chip area, power consumption, sampling frequency, and DAC bit resolution.

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Consumer Electronics, IEEE Transactions on  (Volume:56 ,  Issue: 2 )