BUF20800AIDCPR

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BUF20800AIDCPR

18-CH Gamma Voltage Generator with Two Programmable VCOM Channels

Packaging

Package | PIN: DCP | 38
Temp: S (-40 to 95)
Carrier: Cut Tape
Qty Price
1-9 $5.69
10-24 $5.11
25-99 $4.78
100-249 $4.28
250-499 $4.00
500-749 $3.48
750-999 $3.01
1000+ $2.95

Features

  • 18-CHANNEL GAMMA CORRECTION
  • 2-CHANNEL PROGRAMMABLE VCOM:
    100mA IOUT
  • 10-BIT RESOLUTION
  • RAIL-TO-RAIL OUTPUT
  • LOW SUPPLY CURRENT: 900µA/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
  • APPLICATIONS
    • REPLACES RESISTOR-BASED GAMMA SOLUTIONS
    • TFT-LCD REFERENCE DRIVERS
    • DYNAMIC GAMMA CONTROL

PowerPAD is a registered trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

Texas Instruments  BUF20800AIDCPR

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 industry-standard, 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.