Title :
A new rail-to-rail driving scheme and a low-power high-speed output buffer amplifier for AMLCD column driver application
Author_Institution :
Dept. of Electr. Eng., Nat. Chi Nan Univ., Nantou Hsien, Taiwan
Abstract :
A new high-speed, rail-to-rail driving scheme and a low-power, high-speed output buffer amplifier for active matrix liquid crystal display column driver application are proposed. Two complementary differential amplifiers to drive a pair of column lines are used to realize a rail-to-rail drive. The circuit achieves the large driving capability by employing a simple comparator to sense the transients of the input to turn on an auxiliary driving transistor, which is statically off in the stable state. This increases the speed without increasing static power consumption. They are demonstrated in a 0.35 μm CMOS technology.
Keywords :
CMOS analogue integrated circuits; buffer circuits; differential amplifiers; driver circuits; high-speed integrated circuits; liquid crystal displays; low-power electronics; 0.35 micron; CMOS technology; active matrix liquid crystal display column driver; comparator; complementary differential amplifier; low-power high-speed output buffer amplifier; rail-to-rail drive; Active matrix liquid crystal displays; Differential amplifiers; Driver circuits; Electrodes; High power amplifiers; Liquid crystal displays; Power dissipation; Rail to rail amplifiers; Rail to rail outputs; Voltage;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205542
