BUF08800 Datasheet | Burr-Brown

FEATURES D 10-BIT RESOLUTION D 7- OR 8-CHANNEL GAMMA CORRECTION D INTEGRATED V DRIVER: D D D D D D D 400m A PEAK CURRENT DIGITAL GATE VOLTAGE ADJUSTMENT CIRCUITS RAIL-TO-RAIL OUTPUT LOW SUPPLY CURRENT: 1m A/ch SUPPLY VOLTAGE: 7V to 22V DIGITAL SUPPLY: 2.0V to 5.5V INDUSTRY-STANDARD, TWO-WIRE INTERFACE HIGH ESD RATING: 4k V HBM DESCRIPTION The BUF08800 reference generator offers eight programmable reference channels that can be used depending on the application needs. For example, all eight channels can be used for gamma correction, or some as gamma references and some to digitally adjust the gate voltages or V. All gamma/V channels swing to within 100m V of the positive or negative supply rail with a 10m A load. All channels are programmed using a standard two-wire interface that supports standard operation up to 400k Hz and also high-speed data transfer up to 3.4MHz. The integrated V driver features up to 400m A peak current drive. V voltage pensation at different locations on the LCD panel can be acplished using the negative input of the integrated V op amp. The Gate High and Low voltages can differ because of changes in panel size or technology. The BUF08800 supports digital adjustment circuits for the gate voltages. This feature enables the adjustment of gate voltages through software without changing hardware, thus reducing development time and risk. The BUF08800 is manufactured using Texas Instruments’ proprietary, state-of-the-art, high-voltage CMOS process. This process allows very dense logic as well as high supply voltage operation of up to 22V. The BUF08800 is available in a small TSSOP-20 Power Pad  package, and is specified from - 40°C to +85°C. OUT 7 APPLICATIONS D TFT-LCD REFERENCE DRIVERS D REFERENCE VOLTAGE GENERATORS VSD BUF08800 10- Bit DAC 250kΩ VS +IN (V) V (OUT 1) - IN (V) OUT 2 Gamma/V Register Bank 1 Gamma/V Register Bank 2 10- Bit DAC 10- Bit DAC OUT 3 10- Bit DAC 10- Bit DAC RELATED PRODUCTS OUT 8 FEATURES 12-Channel Gamma Correction Buffer...