BUF11705

BUF11705 SBOS349A − DECEMBER 2005 − REVISED DECEMBER 2007 22-V Supply, 10+1 Channel Gamma Correction Buffer FEATURES D Wide Supply Range: 7 V to 22 V D Gamma Correction Channels: 10 D Integrated VCOM Buffer D Excellent Output Current Drive: − Gamma Channels: > 30 mA at 0.5 V Swing to Rails(1) − VCOM: > 100 mA typ at 2 V Swing to Rails(1) D Large Capacitive Load Drive Capability D Rail-to-Rail Output D PowerPAD Package D Low-Power/Channel: < 500 µA D High ESD Rating: 8 kV HBM, 2 kV CDM, 300 V MM D Specified for −25°C to +85°C (1) See Typical Characteristic curves for details. V DD BUF117 05 So urce Driver Gamma 1 DESCRIPTION The BUF11705 is a multi-channel buffer targeted towards gamma correction in high-resolution LCD panels. It is pin-compatible with the existing BUF11702 and BUF11704 and operates at higher supply voltages up to 22 V (24 V absolute max). The higher supply voltage enables faster response times and brighter images in large-screen LCD panels. This is especially important in LCD TV applications. The BUF11705 offers 10 gamma channels. For additional space and cost savings, a VCOM channel with > 100 mA drive capability is integrated into the BUF11705. The BUF11705 is available in the TSSOP-28 PowerPAD package for dramatically increased power dissipation capability. This allows a large number of channels to be handled safely in one package. A flow-through pinout has been adopted to allow simple PCB routing and maintain cost-effectiveness. All inputs and out...