Title :
Compact low-power high-slew-rate buffer for LCD driver applications
Author :
Le, H.-B. ; Do, Xuan-Dien ; Lee, S.-G.
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
A very compact, rail-to-rail, low-power, high-speed buffer amplifier for LCD driver applications is proposed. A slew-rate enhancement technique based on a dynamic current bias scheme is adopted, and a high slew-rate is obtained without increasing the quiescent current. The buffer amplifier uses a small number of transistors and enables very small active layout area. The proposed buffer amplifier is suitable for both low- and high-voltage LCD driver applications.
Keywords :
amplifiers; buffer circuits; driver circuits; liquid crystal displays; LCD driver applications; buffer amplifier; dynamic current bias scheme; high-speed buffer amplifier; low-power high-slew-rate buffer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2236
