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本文提出一种用于AMLCD驱动芯片的10位分段线性DAC架构，通过漏极电流调制技术实现紧凑设计。解决了传统电阻串DAC在高色深下面积大、功耗高的问题，在保持均匀性的同时降低芯片面积。
(AMLCD) systems play the key role of data voltage generation. Especially stringent requirements are imposed on the DACs for AMLCD data drivers: uniform performance in each data channel, and compactness in chip implementation, as well as extremely low power consumption. The prevalent use of resistor-DAC (RDAC) architectures is partly owing to their uniform characteristics, because each RDAC in the data channels shares a common resistor string for reference voltage generation. Meanwhile, the increase in color depth for AMLCDs highlights the limitations of the RDAC architecture. For an 8b AMLCD data driver IC, the RDAC requires large area for its decoder and related routing lines that connect several hundreds of channels to the common resistor string, and the occupation area exceeds 60%
Yong-Joon Jeon1, Hyung-Min Lee1, Sung-Woo Lee1, Gyu-Hyeong Cho1,
Hyoung Rae Kim2, Yoon-Kyung Choi2, Myunghee Lee2 1 KAIST, Daejeon, Korea Samsung Electronics, Yongin, Korea 2 DACs in data-driver ICs for Active-Matrix LCD