Home Power management LCD & OLED display power & drivers

BUF18830

ACTIVE

18-CH Gamma-Voltage Generator w/Two High Slew Rate VCOMs

Product details

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
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 mm × 5 mm)
  • 10-BIT RESOLUTION
  • 18-CHANNEL P-GAMMA:
    • 300-mV Min Swing-to-Rail (10 mA)
  • TWO-CHANNEL P-VCOM:
    • 400-mA Typical IOUT
  • HIGH SLEW RATE VCOM: 45 V/µs
  • RAIL-TO-RAIL OUTPUT
  • LOW SUPPLY CURRENT
  • SUPPLY VOLTAGE: 6.5 V to 20 V
  • DIGITAL SUPPLY: 2.0 V to 5.5 V
  • TWO-WIRE INTERFACE: Supports 400 kHz and 3.4 MHz
  • 10-BIT RESOLUTION
  • 18-CHANNEL P-GAMMA:
    • 300-mV Min Swing-to-Rail (10 mA)
  • TWO-CHANNEL P-VCOM:
    • 400-mA Typical IOUT
  • HIGH SLEW RATE VCOM: 45 V/µs
  • RAIL-TO-RAIL OUTPUT
  • LOW SUPPLY CURRENT
  • SUPPLY VOLTAGE: 6.5 V to 20 V
  • DIGITAL SUPPLY: 2.0 V to 5.5 V
  • TWO-WIRE INTERFACE: Supports 400 kHz and 3.4 MHz

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.

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.

Download View video with transcript Video

Technical documentation

No results found. Please clear your search and try again.
View all 2
Top documentation Type Title Format options Date
* Data sheet Programmable Gamma-Voltage Generator w/Two High Slew Rate VCOMs datasheet (Rev. A) Jun 24, 2011
Application note Driving Capacitive Loads with Gamma Buffers Nov 20, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

BUF18830 IBIS Model

SBOM457.ZIP (38 KB) - IBIS model
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
VQFN (RGF) 38 Ultra Librarian

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos