Title :
An 8-bit LCD source driver with push- pull low-power output buffer amplifiers
Author :
Wang, Jia-Hui ; Qiu, Jing-Chuan ; Tsai, Chien-Hung ; Chin-Tien Chang ; Wang, Chen-Yu
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
An 8-bit LCD source driver with push-pull buffer amplifiers for N-dot inversion driving is presented. The proposed push-pull output buffer amplifier with dynamic bias effectively increases the transient response, reducing the transistor count of the bias circuit and decreasing the quiescent current path. An 8-bit source driver supporting an N-dot inversion driving scheme is implemented using 0.35μm CMOS technology. The developed driver has maximum setting times of 1.4μs and 1.2μs for rising and falling edges, respectively, under one-dot inversion with a 680pF load. The quiescent current consumption of the proposed push-pull buffer amplifier is about 3.8μA.
Keywords :
CMOS integrated circuits; buffer circuits; differential amplifiers; driver circuits; low-power electronics; CMOS technology; LCD source driver; N-dot inversion driving; push- pull low-power output buffer amplifiers; quiescent current consumption; transient response; CMOS technology; Displays; Driver circuits; Energy consumption; Latches; Power amplifiers; Shift registers; Thin film transistors; Timing; Transient response;
Conference_Titel :
VLSI Design Automation and Test (VLSI-DAT), 2010 International Symposium on
Conference_Location :
Hsin Chu
Print_ISBN :
978-1-4244-5269-9
Electronic_ISBN :
978-1-4244-5271-2
DOI :
10.1109/VDAT.2010.5496755
