The BUF20800-Q1 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, time consuming 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-Q1 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-Q1 offers a high-speed mode that allows clock speeds up to 3.4 MHz.
For lower channel count, please contact your local sales or marketing representative.
The BUF20800-Q1 is available in an HTSSOP-38 PowerPAD™ package. It is specified from −40°C to +105°C.
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