Datasheet > BUF12840

BUF12840

更新时间： 2024-11-21 12:50:03

品牌	Logo	应用领域
德州仪器 - TI		电压发生器
页数	文件大小	规格书
8页	378K
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Programmable Gamma-Voltage Generator

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BUF12840 数据手册

BUF12840

www.ti.com

SBOS536 –OCTOBER 2010

Programmable Gamma-Voltage Generator

with Integrated Two-Bank Memory and External EEPROM

FEATURES

DESCRIPTION

•

10-BIT RESOLUTION

The BUF12840 offers 12 programmable gamma

channels with external electrically erasable

programmable read-only memory (EEPROM) read

capabilities.

12-CHANNEL P-GAMMA

READS FROM EXTERNAL EEPROM

TWO INDEPENDENT PIN-SELECTABLE

MEMORY BANKS

The BUF12840 has two separate memory banks that

allow simultaneous storage of two different gamma

curves to facilitate switching between gamma curves.

•

RAIL-TO-RAIL OUTPUT:

–

300mV Min Swing-to-Rail (10mA)

200mV Min Swing-to-Rail (5mA)

All gamma channels offer a rail-to-rail output that

typically swings to within 200mV of either supply rail

with a 5mA load. All channels are programmed using

a two-wire interface that supports standard operations

up to 400kHz and high-speed data transfers up to

3.4MHz.

•

LOW SUPPLY CURRENT

SUPPLY VOLTAGE: 9V to 20V

DIGITAL SUPPLY: 2V to 5.5V

TWO-WIRE INTERFACE: Supports 400kHz and

3.4MHz Operation

The BUF12840 is manufactured using Texas

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

CMOS process. This process offers very dense logic

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

BUF12840 is offered in a QFN-24 package, and is

specified from –40°C to +95°C.

APPLICATIONS

•

TFT-LCD REFERENCE DRIVERS

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.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7 8

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与BUF12840相关器件

型号	品牌	获取价格	描述	数据表
BUF12840_12	TI	获取价格	Programmable Gamma-Voltage Generator with Integrated Two-Bank Memory and External EEPROM
BUF12840_14	TI	获取价格	Programmable Gamma-Voltage Generator with Integrated Two-Bank Memory and External EEPROM
BUF12840AIRGER	TI	获取价格	具有双存储器组和 EEPROM 访问能力的 12 通道伽马电压发生器 \| RGE \| 24
BUF12840AIRGET	TI	获取价格	具有双存储器组和 EEPROM 访问能力的 12 通道伽马电压发生器 \| RGE \| 24
BUF16820	BB	获取价格	14-Channel GAMMA VOLTAGE GENERATOR with Programmable VCOM Outputs and OTP Memory
BUF16820AIDAPR	BB	获取价格	14-Channel GAMMA VOLTAGE GENERATOR with Programmable VCOM Outputs and OTP Memory
BUF16820AIDAPRG4	BB	获取价格	14-Channel GAMMA VOLTAGE GENERATOR with Programmable VCOM Outputs and OTP Memory
BUF16820AIDAPRG4	TI	获取价格	SPECIALTY ANALOG CIRCUIT, PDSO32, GREEN, PLASTIC, HTSSOP-32
BUF16821	EPCOS	获取价格	Programmable Gamma-Voltage Generator and VCOM Calibrator with Integrated Two-Bank Memory
BUF16821	TI	获取价格	Programmable Gamma-Voltage Generator and VCOM Calibrator with Integrated Two-Bank Memory

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