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BUF16821 Status: ACTIVE

Progammable Gamma-Voltage Generator and Vcom Calibrator with Integrated Two-Bank Memory

      
         
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Datasheet

Download - PDF Icon
  • Programmable Gamma-Volt Generator & Vcom Calibrator w/Integrated 2-Bank Memory (buf16821.pdf, 683 KB)
    29 Jul 2008 Download

 BUF16821
# Gamma Buffers18  
# Vcom Channels2  
Vs(Min)(V)9  
Vs(Max)(V)20  
Iq per channel(Typ)(mA)0.5  
Vcom-Output Current(Typ)(mA)100  
Gamma-Output Current(Typ)(mA)30  
Operating Temp Range(Celsius)-40 to 85  
Pin/Package28HTSSOP  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • BUF08821: Programmable Gamma-Voltage Generator and Vcom Calibrator with Integrated Two-Bank Memory

Product Information

Features

  • 10-BIT RESOLUTION
  • 16-CHANNEL P-GAMMA
  • 2-CHANNEL P-VCOM
  • 16x REWRITABLE NONVOLATILE MEMORY
  • TWO INDEPENDENT PIN-SELECTABLE MEMORY BANKS
  • RAIL-TO-RAIL OUTPUT
    • 300mV Min Swing-to-Rail (10mA)
    • > 300mA Max IOUT
  • LOW SUPPLY CURRENT
  • SUPPLY VOLTAGE: 9V to 20V
  • DIGITAL SUPPLY: 2V to 5.5V
  • I2C INTERFACE: Supports 400kHz and 3.4MHz
  • APPLICATIONS
    • TFT-LCD REFERENCE DRIVERS

PowerPAD Is a trademark of Texas Instruments
I2C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.

Description

The BUF16821 offers 16 programmable gamma channels and two programmable VCOM channels.

The final gamma and VCOM values can be stored in the on-chip,nonvolatile memory. To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF16821 supports up to 16 write operations to the on-chip memory.

The BUF16821 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves.

All gamma and VCOM channels offer a rail-to-rail output that typically swings to within 150mV of either supply rail with a 10mA load. All channels are programmed using an I2C interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.4MHz.

The BUF16821 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 20V. The BUF16821 is offered in a HTSSOP-28 PowerPAD package, and is specified from -40°C to +85°C.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
BUF16821AIPWPRACTIVE-40 to 852.15 | 1kuHTSSOP (PWP) | 28 View 2000 | LARGE T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

  TI Inventory Status Reported Distributor Inventory
BUF16821AIPWPRAs of 10:11 AM GMT, 04 Dec 2008As of 10:11 AM GMT, 04 Dec 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 12 Jan 6 Weeks None Reported
View Distributors		   
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
BUF16821AIPWPR RoHS Compliant Pb-Free (RoHS) CU NIPDAU Level-2-260C-1 YEARViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

  • Programmable Gamma-Volt Generator & Vcom Calibrator w/Integrated 2-Bank Memory (buf16821.pdf, 683 KB)
    29 Jul 2008 Download

Application Notes

  • Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
    24 May 2004 Abstract
  • Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
    04 Oct 2000 Abstract

User Guides

  • BUF16821EVM Evaluation Board and Software Tutorial (sbou057.pdf, 1132 KB)
    27 Feb 2008 Download

More Literature

View More Literature for LCD Gamma Buffers

Tools & Software

NamePart # Company Tool / Software Type
Analog Filter DesignFILTER-DESIGNERTexas InstrumentsAnalysis Software
Automatic Resistor/Capacitor Calculator for Passive FiltersRC-FILTER-CALCTexas InstrumentsCalculation Utilities
Decibel CalculatorDECIBEL-CALCTexas InstrumentsCalculation Utilities
Frequency/Wavelength CalculatorFREQ-WAVE-CALCTexas InstrumentsCalculation Utilities
Noise Calculator, Generator and ExamplesOPAMP-NOISECALCTexas InstrumentsCalculation Utilities
Op Amp Gain Stage CalculatorGAIN-STAGE-CALCTexas InstrumentsCalculation Utilities
Resistor Calculator for Op Amp Gain and Zero ShiftRESISTOR-CALCTexas InstrumentsCalculation Utilities
BUF16821EVM Evaluation ModuleBUF16821EVMTexas InstrumentsDevelopment Boards/EVMs
Universal EVM for Single/Dual OpAmps without Shutdown in MSOP/SOIC/SOT-23 PackagesOPAMPEVM-SOT23Texas InstrumentsDevelopment Boards/EVMs
SPICE-Based Analog Simulation ProgramTINA-TITexas InstrumentsSimulators
MDACBufferPro Output Buffer Amplifier Selection ToolMDACBUFFERPRO Texas Instruments Application Software 
Active Filter Design ApplicationFILTERPRO Texas Instruments Application Software 
  • BUF16821 EVM Software(sboc255.zip, 2960 KB )
               05 Feb 2008 zip

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