FEATURES

Gamma Correction Channels: 10, 6

Integrated VCOM Buffer

Excellent Output Current Drive:

− Gamma Channels: > 30mA at

0.5V Swing to Rails(1)

− VCOM: > 150mA at

5V Swing to Rails(1)

Large Capacitive Load Drive Capability

Rail-to-Rail Output

PowerPAD Package

Low-Power/Channel: < 340μA

Wide Supply Range: 4.5V to 16V

Specified for 0°C to 85°C

High ESD Rating: 4kV

DESCRIPTION

The BUFxx702 are a series of multi-channel buffers

targeted towards gamma correction in high-resolution

LCD panels. The number of gamma correction

channels required depends on a variety of factors and

differs greatly from design to design. Therefore, various

channel options are offered. For additional space and

cost savings, a VCOM channel with higher current drive

capability is integrated in the BUF11702 and

BUF07702.

The various buffers within the BUFxx702 are carefully

matched to the voltage I/O requirements for the gamma

correction application. Each buffer is capable of driving

heavy capacitive loads and offers fast load current

switching. The VCOM channel has increased output

drive of > 100mA and can handle even larger capacitive

loads.

The BUF07702 and BUF11702 is available in the

TSSOP-PowerPAD package for dramatically

increased power dissipation capability. This way, a

large number of channels can be handled safely in one

package.

A flow-through pinout has been adopted to allow simple

PCB routing and maintain the cost-effectiveness of this

solution. All inputs and outputs of the BUFxx702

incorporate internal ESD protection circuits that prevent

functional failures at voltages up to 4kV (HBM) as

tested under MIL-STD-883C Method 3015.