National Semiconductor | High-performance Analog

 

 LMH6559   

High-Speed, Closed-Loop Buffer
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Features

  • Closed-loop buffer
  • 1750MHz small signal bandwidth
  • 4580V/μs slew rate
  • 0.06% / 0.02° differential gain/phase
  • −52dBc THD at 20MHz
  • Single supply operation (3V min.)
  • 75mA output current
  • Description

    The LMH6559 is a high-speed, closed-loop buffer designed for applications requiring the processing of very high frequency signals. While offering a small signal bandwidth of 1750MHz, and an ultra high slew rate of 4580V/μs the LMH6559 consumes only 10mA of quiescent current. Total harmonic distortion into a load of 100Ω at 20MHz is −52dBc. The LMH6559 is configured internally for a loop gain of one. Input resistance is 200kΩ and output resistance is but 1.2Ω. These characteristics make the LMH6559 an ideal choice for the distribution of high frequency signals on printed circuit boards. Differential gain and phase specifications of 0.06% and 0.02° respectively at 3.58MHz make the LMH6559 well suited for the buffering of video signals.

    The device is fabricated on National's high-speed VIP10 process using National's proven high performance circuit architectures.


    Applications

  • Video switching and routing
  • Test point drivers
  • High frequency active filters
  • Wideband DC clamping buffers
  • High-speed peak detector circuits
  • Transmission systems
  • Telecommunications
  • Test equipment and instrumentation
  • Connection Diagram
    click for larger image



    Typical Performance
    click for larger image


     

    ParametersValues
    Output Current 74 mA
    Slew Rate 4580 Volts/usec
    Diff Gain 0.06 %
    Diff Phase 0.02 deg
    Channels 1 Channels
    Buffer Type Fixed
    Av+1 BW 1750 MHz
    Supply Current Per Channel 10 mA
    PowerWise Rating 2 5.7 uA/MHz
    Gain 1 V/V
    Supply Min 3 Volt
    Supply Max 10 Volt
    Offset Voltage max, 25C 3 mV
    Max Input Bias Current 10000 nA
    Voltage Noise 2.8 nV/root(Hz)
    HD 2nd -58 dB
    HD 3rd -53 dB
    Gain Bandwidth 1750 MHz
    Function Buffer
    Temperature Min -40 deg C
    Temperature Max 85 deg C

    Datasheets
    TitleSizeDateOther
    Language
    LMH6559 High-Speed, Closed-Loop Buffer1417
    Kbytes
    3-Feb-12日本語  

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMH6559MA/NOPB

    LMH6559MA

    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide341
    AVNET-EMWorldwide146
    DIGI-KEYWorldwide778
    FARNELLEurope and Asia1100
    NEWARKAmericas260
    RS COMPONENTSWorldwide30
    TAYLORAmericas793
    $0.95 each at 1K+ pcsrail
    of
    95
    LMH6559MAX/NOPB


    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $0.95 each at 1K+ pcsreel
    of
    2500
    LMH6559MF/NOPB

    LMH6559MF

    RoHS Status


    SOT-23
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide1649
    DIGI-KEYWorldwide1913
    FARNELLEurope and Asia289
    NEWARKAmericas289
    RS COMPONENTSWorldwide50
    $0.95 each at 1K+ pcsreel
    of
    1000
    LMH6559MFX/NOPB


    RoHS Status


    SOT-23
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $0.95 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 LMH6559.

    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 LMH6559 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


    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMH730245/NOPB

    Evaluation Board for High-Speed Single Closed-Loop Buffer in the 8-Pin SOIC PackageFull production
    Lead Free (RoHS)

     
    DistributorRegionQty
    AVNET-EMWorldwide6
    DIGI-KEYWorldwide0
    MOUSERWorldwide1
    $10.00 each1

    Description:

    National Semiconductor offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Closed-Loop Buffer that are offered in the 8-Pin SOIC 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 Closed-Loop Buffer
    • 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
    LMH6559MA/NOPB

    LMH6559MA
    69.761
    70.001
    SOIC NARROW81
    1
    260
    235
    DetailDownloadspice file
    NSZXTT
    LMH65
    59MA
    LMH6559MAX/NOPB

    69.761
    70.001
    SOIC NARROW81260DetailDownloadspice file
    NSZXTT
    LMH65
    59MA
    LMH6559MF/NOPB

    LMH6559MF
    14.696
    14.801
    SOT-2351
    1
    260
    260
    DetailDownloadspice file
    B05A
    XTT
    LMH6559MFX/NOPB

    14.696
    14.801
    SOT-2351260DetailDownloadspice file
    B05A
    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 LMH6559.

    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 LMH6559 is located at RoHS Status.

    CAD Symbols and Models
    Download LMH6559 CAD Symbols
     Models
    spice file


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LMH6559MAVIP 100134110012450003353272149
    LMH6559MAXVIP 100134110012450003353272149
    LMH6559MFVIP 100134110012450003353272149
    LMH6559MFXVIP 100134110012450003353272149

    Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

    For more information on Reliability Metrics, please click here.


    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 LMH6559.

    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 LMH6559 is located at RoHS Status.

    What's All This Function Generation Stuff, Anyhow?
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    Milliohms, Micro-ohms, Nano-ohms...
    Loading video...


    What's All This Function Generation Stuff, Anyhow?
    Date: 2006-01-11
    Length: 00:21:12
    Milliohms, Micro-ohms, Nano-ohms...
    Date: 2003-11-11
    Length: 00:34:21
    [Information as of 8-Feb-2012]