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BUF20800

Features: ` 18-CHANNEL GAMMA CORRECTION` 2-CHANNEL PROGRAMMABLE VCOM:100mA IOUT` 10-BIT RESOLUTION` RAIL-TO-RAIL OUTPUT` LOW SUPPLY CURRENT: 900A/ch` SUPPLY VOLTAGE: 7V to 18V` DIGITAL SUPPLY: 2.0V to 5.5V` INDUSTRY-STANDARD, TWO-WIRE INTERFACE:3.4MHz High-Speed Mode` HIGH ESD RATING:4kV HBM, 1kV ...

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SeekIC No. : 004304067 Detail

BUF20800: Features: ` 18-CHANNEL GAMMA CORRECTION` 2-CHANNEL PROGRAMMABLE VCOM:100mA IOUT` 10-BIT RESOLUTION` RAIL-TO-RAIL OUTPUT` LOW SUPPLY CURRENT: 900A/ch` SUPPLY VOLTAGE: 7V to 18V` DIGITAL SUPPLY: 2.0V ...

BUF20800 Data Sheet

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Part Number:
BUF20800
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` 18-CHANNEL GAMMA CORRECTION
` 2-CHANNEL PROGRAMMABLE VCOM:100mA IOUT
` 10-BIT RESOLUTION
` RAIL-TO-RAIL OUTPUT
` LOW SUPPLY CURRENT: 900A/ch
` SUPPLY VOLTAGE: 7V to 18V
` DIGITAL SUPPLY: 2.0V to 5.5V
` INDUSTRY-STANDARD, TWO-WIRE INTERFACE:3.4MHz High-Speed Mode
` HIGH ESD RATING:4kV HBM, 1kV CDM, 200V MM
` DEMO BOARD AND SOFTWARE AVAILABLE


Application

· REPLACES RESISTOR-BASED GAMMA SOLUTIONS
· TFT-LCD REFERENCE DRIVERS
· DYNAMIC GAMMA CONTROL


Specifications

Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . +19V
Supply Voltage, VSD . . . . . . . . . . . . . . . . . . . . . . . . . +6V
Signal Input Terminals, SCL, SDA, AO, LD: Voltage . . −0.5V to +6V
Current . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . ±10mA
Output Short Circuit(2) . . . . . . . . . .  . . . . . . . .Continuous
Operating Temperature . . . . . . . . . . . . .−40°C to +95°C
Storage Temperature . . . . . . . . .  . . . .−65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . .+125°C
Lead Temperature (soldering, 10s) . . . . . . . . . .   +300°C
ESD Rating:
Human Body Model (HBM)  . . . . . . . . . . . . . . . . . . . . .  4kV
Charged-Device Model (CDM) . . . . . . . . . . . . . . . . . . . 1kV
Machine Model (MM) . . . . . . . . . . . . . . . . . . . . . . . . . 200V


Description

The BUF20800 is a programmable voltage reference generator designed for gamma correction in TFT-LCD panels. It provides 18 programmable outputs for gamma correction and two channels for VCOM adjustment, each with 10-bit resolution.

This programmability replaces the traditional, timeconsuming process of changing resistor values to optimize the various gamma voltages and allows designers to determine the correct gamma voltages for a panel very quickly. Required changes can also be easily implemented without hardware changes.

The BUF20800 uses TI's latest, small-geometry analog CMOS process, which makes it a very competitive choice for full production, not just evaluation.

Programming of each output occurs through an industrystandard,two-wire serial interface. Unlike existing programmable buffers, the BUF20800 offers a high-speed mode that allows clock speeds up to 3.4MHz.For lower channel count, please contact your local sales or marketing representative.

The BUF20800 is available in an HTSSOP-38 PowerPAD package. It is specified from −40°C to +85°C.




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