A 10-bit DAC with offset-adjustable op-amp for LCD column driver applications

Authors:
Chih-Wen Lu;Ching-Min Hsiao;Ping-Yeh Yin;Yo-Sheng Lin
Affiliations:
Department of Engineering and System Science, National Tsing Hua University, Hsinchu, Taiwan, R.O.C 30013;Department of Electrical Engineering, National Chi Nan University, Nantou Hsien, Taiwan, R.O.C.;Department of Electrical Engineering, National Chi Nan University, Nantou Hsien, Taiwan, R.O.C.;Department of Electrical Engineering, National Chi Nan University, Nantou Hsien, Taiwan, R.O.C.
Venue:
Analog Integrated Circuits and Signal Processing
Year:
2013

Citing 4
Cited 0

Design of Analog CMOS Integrated Circuits

Design of Analog CMOS Integrated Circuits
An area-efficient fully R-DAC-based TFT-LCD column driver

IEEE Transactions on Circuits and Systems Part I: Regular Papers
High Voltage High Speed Low Power Rail-to-Rail Source Driver for 8-bit Large TFT LCD Applications

IEEE Transactions on Consumer Electronics
High-speed 10-bit LCD column driver with a split DAC and a class-AB output buffer

IEEE Transactions on Consumer Electronics

Quantified Score

Hi-index	0.00

Visualization

Abstract

This paper proposes a 10-bit digital-to-analog converter (DAC) consisting of a 6-bit resistive DAC (RDAC) and a 4-bit offset-adjustable op-amp for LCD column driver applications. The 6-bit RDAC selects only one voltage from the global resistor string before transmitting it to the op-amp. The op-amp implements 4-bit interpolation by adjusting the offset voltage. The maximal differential nonlinearity and integral nonlinearity of the proposed converter were measured at 0.8 LSB and 0.81 LSB, respectively, using 1LSB equal to 2 mV. The proposed 10-bit DAC occupies only 70 % of the space required for a conventional 8-bit RDAC.