National Semiconductor | High-performance Analog

 

 LMH6503   
Wideband, Low Power, Linear Variable Gain Amplifier 		Click link to Download

Features

VS = ±5V, TA = 25°C, RF = 1k, RG = 174, RL = 100, AV = AV(MAX) = 10, Typical values unless specified.

-3dB BW

135MHz

Gain control BW

100MHz

Adjustment range (typical over temp)

70dB

Gain matching (limit)

±0.7dB

Slew rate

1800V/µs

Supply current (no load)

37mA

Linear output current

±75mA

Output voltage (RL = 100)

±3.2V

Input voltage noise

6.6nV/

Input current noise

2.4pA/

THD (20MHz, RL = 100, VO = 2VPP)

-57dBc

Replacement for CLC522

  

Description

The LMH™6503 is a wideband DC coupled differential input voltage controlled gain stage followed by a high-speed current feedback Op Amp which can directly drive a low impedance load. Gain adjustment range is more than 70dB for up to 10MHz.

Maximum gain is set by external components and the gain can be reduced all the way to cut-off. Power consumption is 370mW with a speed of 135MHz . Output referred DC offset voltage is less than 350mV over the entire gain control voltage range. Device-to-device Gain matching is within 0.7dB at maximum gain. Furthermore, gain at any VG is tested and the tolerance is guaranteed. The output current feedback Op Amp allows high frequency large signals (Slew Rate = 1800V/µs) and can also drive heavy load current (75mA). Differential inputs allow common mode rejection in low level amplification or in applications where signals are carried over relatively long wires. For single ended operation, the unused input can easily be tied to ground (or to a virtual half-supply in single supply application). Inverting or non-inverting gains could be obtained by choosing one input polarity or the other.

To further increase versatility when used in a single supply application, gain control range is set to be from -1V to +1V relative to pin 11 potential (ground pin). In single supply operation, this ground pin is tied to a "virtual" half supply. Gain control pin has high input impedance to simplify its drive requirement. Gain control is linear in V/V throughout the gain adjustment range. Maximum gain can be set to be anywhere between 1V/V to 100V/V or higher. For linear in dB gain control applications, see LMH6502 datasheet.

The LMH6503 is available in the SOIC-14 and TSSOP-14 package.


Applications

  • Variable attenuator
  • AGC
  • Voltage controller filter
  • Multiplier




    • Typical Application
    click for larger image


    		Block Diagram
    click for larger image



    Typical Performance
    click for larger image


     

    ParametersValues
    Gain Adjust Range 70 dB
    Analog Control BW 100 MHz
    Signal Channel BW 135 MHz
    Supply Min 5 Volt
    Supply Max 12 Volt
    Gain Control Interface Voltage
    Slew Rate 1800 Volts/usec
    Supply Current 37 mA
    PowerWise Rating 2 274 uA/MHz
    Output Current 90 mA
    Offset Voltage max, 25C 370 mV
    Max Input Bias Current 20000 nA
    Voltage Noise 6.6 nV/root(Hz)
    HD 2nd -60 dB
    HD 3rd -61 dB
    Diff Gain 0.15 %
    Diff Phase 0.22 deg
    Special Features Differential Input
    Function VGA
    Temperature Min -40 deg C
    Temperature Max 85 deg C

    Datasheets
    TitleSizeDateOther
    Language
    LMH6503 Wideband, Low Power, Linear Variable Gain Amplifier1009
    Kbytes    		25-Jun-04日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-1808: Application Note 1808 LMH730033 Evaluation Board683
    Kbytes    		3-Mar-08 

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMH6503MA/NOPB

    LMH6503MA

    RoHS Status

    SOIC NARROW    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide220
    AVNET-EMWorldwide87
    DIGI-KEYWorldwide7
    FARNELLEurope and Asia326
    MOUSERWorldwide110
    RS COMPONENTSWorldwide20
    TAYLORAmericas220
    		$3.48 each at 1K+ pcsrail
    of
    55
    LMH6503MAX/NOPB

    LMH6503MAX

    RoHS Status

    SOIC NARROW    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$3.48 each at 1K+ pcsreel
    of
    2500
    LMH6503MT/NOPB

    LMH6503MT

    RoHS Status

    TSSOP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide94
    AVNET-EMWorldwide58
    DIGI-KEYWorldwide838
    FARNELLEurope and Asia98
    MOUSERWorldwide94
    RS COMPONENTSWorldwide41
    TAYLORAmericas94
    		$3.48 each at 1K+ pcsrail
    of
    94
    LMH6503MTX/NOPB

    LMH6503MTX

    RoHS Status

    TSSOP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$3.48 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 LMH6503.

    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 LMH6503 is located at RoHS Status.

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMH730033/NOPB

    		Evaluation Board for High-Speed Single Variable Gain Amplifier in the 14-Pin SOIC PackageFull production
    Lead Free (RoHS)

     
    DistributorRegionQty
    AVNET-EMWorldwide2
    DIGI-KEYWorldwide0
    MOUSERWorldwide5
    TAYLORAmericas15
    		$10.00 each1

    Description:

    National Semiconductor offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Variable Gain Amplifier that are offered in the 14-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 Variable Gain Amplifier
    • 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
    LMH6503MA/NOPB

    LMH6503MA
    		129.551
    130.001
    		SOIC NARROW141
    1    		260
    235    		DetailDownloadspice file
    		NSUZXYTTE#
    LMH6503MA
    LMH6503MAX/NOPB

    LMH6503MAX
    		129.551
    130.001
    		SOIC NARROW141
    1    		260
    235    		DetailDownloadspice file
    		NSUZXYTTE#
    LMH6503MA
    LMH6503MT/NOPB

    LMH6503MT
    		53.783
    54.004
    		TSSOP141
    1    		260
    260    		DetailDownloadspice file
    		NSUZXYTT
    LMH65
    03MT
    LMH6503MTX/NOPB

    LMH6503MTX
    		53.783
    54.004
    		TSSOP141
    1    		260
    260    		DetailDownloadspice file
    		NSUZXYTT
    LMH65
    03MT

    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 LMH6503.

    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 LMH6503 is located at RoHS Status.

    Design Tools
    TitleSizeDate
    CLC730033 SOIC-14 Evaluation Board - Included with LMH6503MA Sample Order325 Kbytes2-Feb-04

    CAD Symbols and Models
    Download LMH6503 CAD Symbols
    		 Models
    spice file


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LMH6503MAVIP 100134110012450003353272149
    LMH6503MAXVIP 100134110012450003353272149
    LMH6503MTVIP 100134110012450003353272149
    LMH6503MTXVIP 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 LMH6503.

    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 LMH6503 is located at RoHS Status.

    [Information as of 8-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation