Gamma Correction Buffer 28-Pin HTSSOP EP T/R

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 outputs of the BUF11705 incorporate internal ESD protection circuits that prevent functional failures at voltages up to 8 kV (HBM), 2 kV (CDM), and 300 V (MM).

Wide Supply Range: 7 V to 22 V

Gamma Correction Channels: 10

Integrated V_COM Buffer

Excellent Output Current Drive:

• Gamma Channels:
  > 30 mA at 0.5 V Swing to Rails⁽¹⁾
• V_COM:
  > 100 mA typ at 2 V Swing to Rails⁽¹⁾

Large Capacitive Load Drive Capability

Rail-to-Rail Output

PowerPAD™ Package

Low-Power/Channel: < 500 µA

High ESD Rating: 8 kV HBM, 2 kV CDM, 300 V MM

Specified for –25°C to +85°C