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Technical Specifications
Parameters and characteristics for this part
| Specification | BUF12800AIPWPR |
|---|---|
| Applications | TFT-LCD Panels: Gamma Buffer |
| Current - Supply | 9 mA |
| Mounting Type | Surface Mount |
| Number of Circuits | 12 |
| Output Type | Rail-to-Rail |
| Package / Case | 0.173 in, 4.4 mm |
| Package / Case | 24-PowerTSSOP |
| Supplier Device Package | 24-HTSSOP |
| Voltage - Supply, Single/Dual (±) [Max] | 18 V |
| Voltage - Supply, Single/Dual (±) [Min] | 7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 4.83 | |
| 10 | $ 4.34 | |||
| 25 | $ 4.10 | |||
| 100 | $ 3.55 | |||
| 250 | $ 3.37 | |||
| 500 | $ 3.02 | |||
| 1000 | $ 2.55 | |||
| Digi-Reel® | 1 | $ 4.83 | ||
| 10 | $ 4.34 | |||
| 25 | $ 4.10 | |||
| 100 | $ 3.55 | |||
| 250 | $ 3.37 | |||
| 500 | $ 3.02 | |||
| 1000 | $ 2.55 | |||
| Tape & Reel (TR) | 2000 | $ 2.42 | ||
| Texas Instruments | LARGE T&R | 1 | $ 3.32 | |
| 100 | $ 2.71 | |||
| 250 | $ 2.13 | |||
| 1000 | $ 1.80 | |||
Description
General part information
BUF12800 Series
The BUF12800 is a programmable voltage reference generator designed for dynamic gamma correction in TFT-LCD panels. It provides 12 programmable outputs, each with 10-bit resolution.
TI’s new, small geometry, state-of-the-art, analog CMOS process allows the use of one digital-to-analog converter (DAC) per channel while still maintaining a very small chip size. This topology has the advantage of significantly increased programming speed over existing programmable buffers.
Programming of each output occurs through an industrystandard, two-wire serial interface. Unlike existing programmable buffers, the BUF12800 offers a highspeed, two-wire interface mode that allows clock speeds up to 3.4MHz. The BUF12800 features a double-buffered DAC register structure that significantly simplifies implementation of dynamic gamma control. This further reduces programming time, especially when many channels have to be updated simultaneously.
