National Semiconductor | High-performance Analog

 

 LMH6738   

Very Wideband, Low Distortion Triple Op Amp from the PowerWise® Family
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Features
  • 750 MHz -3 dB small signal bandwidth (AV = +1)
  • -85 dBc 3rd harmonic distortion (20 MHz)
  • 2.3 nV/Hz input noise voltage
  • 3300 V/µs slew rate
  • 33 mA supply current (11.3 mA per op amp)
  • 90 mA linear output current
  • 0.02/0.01 Diff. Gain / Diff. Phase (RL = 150)
  • Description

    The LMH6738 is a very wideband, DC coupled monolithic operational amplifier designed specifically for ultra high resolution video systems as well as wide dynamic range systems requiring exceptional signal fidelity. Benefiting from National's current feedback architecture, the LMH6738 offers a gain range of ±1 to ±10 while providing stable, operation without external compensation, even at unity gain. At a gain of +2 the LMH6738 supports ultra high resolution video systems with a 400 MHz 2 VPP -3 dB Bandwidth. With 12-bit distortion levels through 30 MHz (RL = 100), 2.3 nV/Hz input referred noise, the LMH6738 is the ideal driver or buffer for high speed flash A/D and D/A converters. Wide dynamic range systems such as radar and communication receivers requiring a wideband amplifier offering exceptional signal purity will find the LMH6738's low input referred noise and low harmonic distortion make it an attractive solution.


    Applications

  • RGB video driver
  • High resolution projectors
  • Flash A/D driver
  • D/A transimpedance buffer
  • Wide dynamic range IF amp
  • Radar/communication receivers
  • DDS post-amps
  • Wideband inverting summer
  • Line driver
  • Also Recommended
    LMH6733Pin Compatible, Single Supply, Higher BW (1 GHz) Version

    Connection Diagram
    click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLMH6738 LMH6733
    -3dB BW750 MHz 1000 MHz
    AvCL for -3dB BW1 V/V 1 V/V
    Slew Rate3300 Volts/usec 3750 Volts/usec
    Input OutputTypeNot Rail to Rail Not Rail to Rail
    Supply Min10 Volt 3 Volt
    Supply Max12 Volt 12 Volt
    Supply Current Per Channel10.5 mA 6.5 mA
    PowerWise Rating 214 uA/MHz 6.5 uA/MHz
    Channels3 Channels 3 Channels
    Offset Voltage max, 25C2.5 mV 2.2 mV
    Max Input Bias Current5000 nA 26000 nA
    Output Current90 mA 80 mA
    Voltage Noise2.2 nV/root(Hz) 2.1 nV/root(Hz)
    Shut downYes Yes
    Feedback TypeCurrent Current
    Av+1 BW750 MHz 1000 MHz
    Av+2 BW480 MHz 830 MHz
    Av+5 BW320 MHz 400 MHz
    Av+10 BW300 MHz
    HD 2nd-80 dB -72 dB
    HD 3rd-90 dB -63 dB
    Diff Gain0.02 % 0.03 %
    Diff Phase0.01 deg 0.03 deg
    Settling Time10 ns 10 ns
    Tsettling Conditionsto 1% to 0.1%
    FunctionOp Amp Op Amp
    Gain Bandwidth400 MHz 1000 MHz
    Temperature Min-40 deg C -40 deg C
    Temperature Max85 deg C 85 deg C
    PowerWiseYes Yes

    Datasheets
    TitleSizeDateOther
    Language
    LMH6738 Very Wideband, Low Distortion Triple Op Amp847
    Kbytes
    12-Apr-06   


    Other Technical Documents
    TitleTypeDate
    Back to the Basics: Using Current-Feedback Op Amps for High-speed DesignsExternal Article 2007-01-26

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMH6738MQ/NOPB

    LMH6738MQ

    RoHS Status


    SSOP
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide380
    DIGI-KEYWorldwide487
    FARNELLEurope and Asia101
    RS COMPONENTSWorldwide15
    TAYLORAmericas380
    $2.60 each at 1K+ pcsrail
    of
    95
    LMH6738MQX/NOPB

    LMH6738MQX

    RoHS Status


    SSOP
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide2500
    DIGI-KEYWorldwide0
    $2.60 each at 1K+ pcsreel
    of
    2500

    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 LMH6738.

    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 LMH6738 is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMH730275/NOPB

    Evaluation Board for High-Speed Triple Op Amp in the 16-Pin SSOP 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 Op Amp that are offered in the 16-Pin SSOP 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
    LMH6738MQ/NOPB

    LMH6738MQ
    73.053
    73.403
    SSOP161
    1
    260
    260
    DetailDownloadspice file
    NSXYTT
    LH67
    38MQ
    LMH6738MQX/NOPB

    LMH6738MQX
    73.053
    73.403
    SSOP161
    1
    260
    260
    DetailDownloadspice file
    NSXYTT
    LH67
    38MQ

    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 LMH6738.

    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 LMH6738 is located at RoHS Status.

    Design Tools
    TitleSizeDate
    LMH730275 SSOP Triple High Speed Evaluation Board114 Kbytes1-May-03

    CAD Symbols and Models
    Download LMH6738 CAD Symbols
     Models
    spice file


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LMH6738MQVIP 100134110012450003353272149
    LMH6738MQXVIP 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 LMH6738.

    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 LMH6738 is located at RoHS Status.

    [Information as of 8-Feb-2012]