FEATURES

Wide Supply Range: 7 V to 22 V

Gamma Correction Channels: 10

Integrated VCOM Buffer

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)

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

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 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).