BUF08832

Analog

(9Vto20V)

Digital

(2.0Vto5.5V)

BKSEL

A0

SCL

SDA

V

COM

ControlIF

OUT7

OUT8

BUF08832

OUT1

OUT2

1

V

COM-FB

GND(V

)

COM

V (V

S

BUF08832

www.ti.com

SBOS476C

– AUGUST 2009 – REVISED JULY 2011

Programmable Gamma-Voltage Generator and

Check for Samples: BUF08832

1

FEATURES

DESCRIPTION

The BUF08832 offers eight programmable gamma

23

•

10-BIT RESOLUTION

•

8-CHANNEL P-GAMMA

•

the

on-chip,

nonvolatile

memory.

To

allow

for

•

programming errors or liquid crystal display (LCD)

•

16x REWRITABLE NONVOLATILE MEMORY

panel rework, the BUF08832 supports up to 16 write

•

TWO INDEPENDENT PIN-SELECTABLE

operations to the on-chip memory.

MEMORY BANKS

The BUF08832 has two separate memory banks,

•

RAIL-TO-RAIL OUTPUT

allowing simultaneous storage of two different gamma

– 300mV Min Swing-to-Rail (10mA)

curves to facilitate switching between gamma curves.

•

LOW SUPPLY CURRENT

output that typically swings to within 150mV of either

•

SUPPLY VOLTAGE: 9V to 20V

supply rail with a 10mA load. All channels are

•

DIGITAL SUPPLY: 2V to 5.5V

programmed

using

a

Two-Wire

interface

that

supports standard operations up to 400kHz and

•

TWO-WIRE INTERFACE: Supports 400kHz and

high-speed data transfers up to 3.4MHz.

3.4MHz

The

BUF08832

is

manufactured

using

Texas

APPLICATIONS

Instruments

’ proprietary, state-of-the-art, high-voltage

CMOS process. This process offers very dense logic

•

TFT-LCD REFERENCE DRIVERS

and high supply voltage operation of up to 20V. The

BUF08832 is offered in a HTSSOP-20 PowerPAD

™

package, and is specified from

–40°C to +85°C.

RELATED PRODUCTS

FEATURES

PRODUCT

22-Channel Gamma Correction Buffer

BUF22821

16-Channel Gamma Correction Buffer

BUF16821

12-Channel Gamma Correction Buffer

BUF12800

BUF20800

18-/20-Channel Programmable Buffer with Memory

BUF20820

BUF01900

18V Supply, Traditional Gamma Buffers

BUF11704

22V Supply, Traditional Gamma Buffers

BUF11705

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

PowerPAD is a trademark of Texas Instruments Incorporated.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright

© 2009–2011, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.