EC5579E-H1G (AS19-H1G) - 14+1 Channel Voltage Buffer for TFT LCD, TQFP48

The AS19-H1G is a high-performance 18+1 channel voltage buffer designed specifically for gamma correction in TFT LCD applications. It serves a critical role in stabilizing the reference voltage levels required for accurate color reproduction and consistent image quality across a liquid crystal display.

This IC incorporates 18 independent buffer channels and an additional Vcom amplifier channel, which provides a stable reference voltage for the common electrode (Vcom) of the LCD, reducing flicker and enhancing overall display quality. With an ultra-wide supply voltage range from 6.5V to 18V, the AS19-H1G offers flexibility in power management across different LCD designs, making it compatible with various display configurations.

The AS19-H1G is built with high slew rate capability (1V/μs), allowing for rapid response to changes in input signals, which is essential for real-time adjustments in dynamic display content. Its rail-to-rail output swing enables the highest and lowest stages to reach full voltage range, ensuring maximum signal integrity and accuracy.

Key Features:

• 18+1 Channel Buffer: Includes 18 channels for gamma correction and 1 Vcom channel for TFT LCD applications.
• Wide Supply Voltage Range: Operates from 6.5V to 18V, compatible with various display power configurations.
• High Slew Rate: Achieves 1V/μs, ensuring quick response for real-time display adjustments.
• Rail-to-Rail Output: Provides full swing output, crucial for precise voltage regulation in display applications.
• High Bandwidth: 2 MHz bandwidth with 3dB frequency response, supporting high-speed LCD signals.
• Ultra-Small Package: Compact 48-pin TQFP package for streamlined integration in LCD panels.