The BUF18830 offers 18 programmable gamma channels and two programmable VCOM channels.
All gamma and VCOM channels offer a rail-to-rail output that typically swings to within 300 mV of either supply rail with a 10-mA load. All channels are programmed using a two-wire interface that supports standard operations up to 400 kHz and high-speed data transfers up to 3.4 MHz.
The BUF18830 is manufactured using Texas Instruments’ proprietary, state-of-the-art, high-voltage CMOS process. This process offers very dense logic and high supply voltage operation of up to 20 V. The BUF18830 is offered in a QFN-38 package and is specified from –40°C to +85°C.
| Display type | LCD unipolar |
| IC integration | Gamma buffer, VCOM |
| Vin (min) (V) | 6.5 |
| Vin (max) (V) | 20 |
| Applications | 13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches |
| Source driver voltage (min) (V) | 6.5 |
| Source driver voltage (max) (V) | 20 |
| Level shifter/scan driver (Ch) | 0 |
| Features | Gamma buffer, I2C interface, VCOM or op amp |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| VQFN (RGF) | 38 | 35 mm² 7 x 5 |
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