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A small-area and low-power data driver IC using two-stage DAC with a capacitor array for active matrix flat-panel displays

Title
A small-area and low-power data driver IC using two-stage DAC with a capacitor array for active matrix flat-panel displays
Author
권오경
Keywords
active matrix flat-panel display (AMFPD); data driver ICs; digital-to-analog converter (DAC); two-stage DAC; high-resolution display
Issue Date
2017-03
Publisher
WILEY
Citation
JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY, v. 25, no. 1, page. 4-11
Abstract
A small-area and low-power data driver integrated circuit (IC) using a two-stage digital-to-analog converter (DAC) with a capacitor array is proposed for active matrix flat-panel displays. The proposed data driver IC employs a capacitor array in the two-stage DAC so as to reduce the DAC area and eliminate the need for a resistor string, which has high-power consumption. To verify the proposed two-stage DAC, a 20-channel data driver IC with the proposed 10-bit two-stage DAC was fabricated using a 0.18-m complementary metal-oxide-semiconductor process with 1.8 and 6V complementary metal-oxide-semiconductor devices. The proposed 10-bit two-stage DAC occupies only 43.8% of the area of a conventional 10-bit two-stage DAC. The measurement results show that the differential nonlinearity and integral nonlinearity are +0.58/-0.52 least significant bit and +0.62/-0.59 least significant bit, respectively. The measured interchannel deviation of the voltage outputs is 8.8mV, and the measured power consumption of the 20-channel data driver IC is reduced to 7.1mW, which is less than half of the power consumed by the conventional one.
URI
https://onlinelibrary.wiley.com/doi/abs/10.1002/jsid.526http://repository.hanyang.ac.kr/handle/20.500.11754/113217
ISSN
1071-0922; 1938-3657
DOI
10.1002/jsid.526
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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