FEATURES
C0068 Wide Supply Range: 7 V to 22 V
C0068 Gamma Correction Channels: 10
C0068 Integrated V
COM
Buffer
C0068 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)
C0068 Large Capacitive Load Drive Capability
C0068 Rail-to-Rail Output
C0068 PowerPAD Package
C0068 Low-Power/Channel: < 500 µA
C0068 High ESD Rating: 8 kV HBM, 2 kV CDM,
300 V MM
C0068 Specified for −25°C to +85°C
(1)
See Typical Characteristic curves for details.
BUF11705
V
DD
V
COM
Source Driver
Gamma 1
Gamma 2
Gamma 3
Gamma (n − 2)
Gamma (n − 1)
Gamma (n)
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 V
COM
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).
PowerPAD is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.
BUF11705
SBOS349 − DECEMBER 2005
22-V Supply, 10+1 Channel
Gamma Correction Buffer
C0080C0082C0079C0068C0085C0067C0084C0073C0079C0078 C0068C0065C0084C0065 C0105C0110C0102C0111C0114C0109C0097C0116C0105C0111C0110 C0105C0115 C0099C0117C0114C0114C0101C0110C0116 C0097C0115 C0111C0102 C0112C0117C0098C0108C0105C0099C0097C0116C0105C0111C0110 C0100C0097C0116C0101C0046 C0080C0114C0111C0100C0117C0099C0116C0115
C0099C0111C0110C0102C0111C0114C0109 C0116C0111 C0115C0112C0101C0099C0105C0102C0105C0099C0097C0116C0105C0111C0110C0115 C0112C0101C0114 C0116C0104C0101 C0116C0101C0114C0109C0115 C0111C0102 C0084C0101C0120C0097C0115 C0073C0110C0115C0116C0114C0117C0109C0101C0110C0116C0115 C0115C0116C0097C0110C0100C0097C0114C0100 C0119C0097C0114C0114C0097C0110C0116C0121C0046
C0080C0114C0111C0100C0117C0099C0116C0105C0111C0110 C0112C0114C0111C0099C0101C0115C0115C0105C0110C0103 C0100C0111C0101C0115 C0110C0111C0116 C0110C0101C0099C0101C0115C0115C0097C0114C0105C0108C0121 C0105C0110C0099C0108C0117C0100C0101 C0116C0101C0115C0116C0105C0110C0103 C0111C0102 C0097C0108C0108 C0112C0097C0114C0097C0109C0101C0116C0101C0114C0115C0046
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