National Semiconductor | High-performance Analog

 

 LMH6640   

TFT-LCD Single, 16V, Rail-to-Rail High Output Operational Amplifier
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Features

(VS = 16V, RL= 2 k to V+/2, 25°C, Typical Values Unless Specified)

Supply current (no load)

4 mA

Output resistance (closed loop 1 MHz)

0.35

-3 dB BW (AV = 1)

190 MHz

Settling time (±0.1%, 2 VPP)

35 ns

Input common mode voltage

-0.3V to 15.1V

Output voltage swing

100 mV from rails

Linear output current

±100 mA

Total harmonic distortion (2 VPP, 5 MHz)

-64 dBc

Fully characterized for:

5V & 16V

No output phase reversal with CMVR exceeded

 

Differential gain (RL = 150)

0.12%

Differential phase (RL = 150)

0.12°

Description

The LMH™6640 is a voltage feedback operational amplifier with a rail-to-rail output drive capability of 100 mA. Employing National's patented VIP10 process, the LMH6640 delivers a bandwidth of 190 MHz at a current consumption of only 4mA. An input common mode voltage range extending to 0.3V below the V- and to within 0.9V of V+, makes the LMH6640 a true single supply op-amp. The output voltage range extends to within 100 mV of either supply rail providing the user with a dynamic range that is especially desirable in low voltage applications.

The LMH6640 offers a slew rate of 170 V/µs resulting in a full power bandwidth of approximately 28 MHz with 5V single supply (2 VPP, -1 dB). Careful attention has been paid to ensure device stability under all operating voltages and modes. The result is a very well behaved frequency response characteristic for any gain setting including +1, and excellent specifications for driving video cables including total harmonic distortion of -64 dBc @ 5 MHz, differential gain of 0.12% and differential phase of 0.12°.


Applications

  • TFT panel VCOM buffer amplifier
  • Active filters
  • CD/DVD ROM
  • ADC buffer amplifier
  • Portable video
  • Current sense buffer



  • Typical Application
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    Connection Diagram
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    Typical Performance
    click for larger image


     

    ParametersValues
    -3dB BW 190 MHz
    AvCL for -3dB BW 1 V/V
    Slew Rate 170 Volts/usec
    Input OutputType Vcm to V-, R-R Out
    Supply Min 4.5 Volt
    Supply Max 16 Volt
    Supply Current Per Channel 4 mA
    PowerWise Rating 2 21.1 uA/MHz
    Channels 1 Channels
    Offset Voltage max, 25C 1 mV
    Max Input Bias Current 3500 nA
    Output Current 110 mA
    Voltage Noise 10 nV/root(Hz)
    Shut down No
    Feedback Type Voltage
    Av+1 BW 190 MHz
    Av+2 BW 95 MHz
    Av+5 BW 38 MHz
    Av+10 BW 19 MHz
    Av+20 BW 9.5 MHz
    HD 2nd -71 dB
    HD 3rd -72 dB
    Diff Gain 0.12 %
    Diff Phase 0.12 deg
    Settling Time 35 ns
    Tsettling Conditions to 0.1%
    Special Features High Cload Drive
    Function Op Amp
    Gain Bandwidth 62 MHz
    Temperature Min -40 deg C
    Temperature Max 85 deg C

    Datasheets
    TitleSizeDateOther
    Language
    LMH6640 TFT-LCD Single, 16V, Rail-to-Rail High Output Operational Amplifier901
    Kbytes
    19-Nov-04   

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMH6640MF/NOPB

    LMH6640MF

    RoHS Status


    SOT-23
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AITGAsia Pacific1001
    ARROWWorldwide2000
    DIGI-KEYWorldwide1823
    MOUSERWorldwide965
    NEWARKAmericas749
    RS COMPONENTSWorldwide465
    TAYLORAmericas2000
    $1.15 each at 1K+ pcsreel
    of
    1000
    LMH6640MFX/NOPB

    LMH6640MFX

    RoHS Status


    SOT-23
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $1.15 each at 1K+ pcsreel
    of
    3000

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for LMH6640.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for LMH6640 is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMH730216/NOPB

    Evaluation Board for High-Speed Single Op Amp in the 5-/6-Pin SOT-23 PackageFull production
    Lead Free (RoHS)

     
    DistributorRegionQty
    AVNET-EMWorldwide2
    DIGI-KEYWorldwide0
    MOUSERWorldwide3
    $10.00 each1

    Description:

    National Semiconductor offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Op Amp that are offered in the 5-/6-Pin SOT-23 package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit configuration. The performance can then be evaluated under the test conditions of your choice. Power supplies, analog signal source, and other measurement equipment shall be provided by the user.

    Features:

    • Accommodates various high-speed Op Amp
    • Allows quick and easy evaluation
    • Serves as reference design to aid in high-speed PCB layout
    • Utilizes surface-mount components

    NOTE: IC samples are not shipped with the Evaluation PCB, but may be requested separately from the Order page in the Product Folder

    Evaluation Board User Manual

    Evaluation Board Design Files




    National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

    Lead Free product status is available through the search tool located here

    Part Number(s)
    (NSID)
    Weight
    (milligrams)
    TypePinsMSL RatingPeak ReflowRoHS
    Status
    CAD SymbolsModelsPackage
    Marking
    Format
    LMH6640MF/NOPB

    LMH6640MF
    14.696
    14.801
    SOT-2351
    1
    260
    260
    DetailDownloadN/A
    AH1A
    XTT
    LMH6640MFX/NOPB

    LMH6640MFX
    14.696
    14.801
    SOT-2351
    1
    260
    260
    DetailDownloadN/A
    AH1A
    XTT

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for LMH6640.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for LMH6640 is located at RoHS Status.

    CAD Symbols and Models
    Download LMH6640 CAD Symbols
     Models
    N/A


    [Information as of 9-Feb-2012]