National Semiconductor | High-performance Analog

 

 LMP7732   
2.9nV/sqrt(Hz) Low Noise, RRIO Amplifier from the PowerWise® Family		 Click link to Download

Features

(Typical values, TA = 25°C, VS = 5V)

  • Input voltage noise

    • f = 3 Hz

    3.3 nV/ √Hz

    f = 1 kHz

    2.9 nV/ √Hz

    CMRR

    130 dB

    Open loop gain

    130 dB

    GBW

    22 MHz

    Slew rate

    2.4 V/µs

    THD @ f = 10 kHz, AV = 1, RL = 2 kΩ

    0.001%

    Supply current

    4.4 mA

    Supply voltage range

    1.8V to 5.5V

    Operating temperature range

    −40°C to 125°C

    Input bias current

    ±1.5 nA

    RRIO

    Description

    The LMP7732 is a dual low noise, rail-to-rail input and output, low voltage amplifier. The LMP7732 is part of the LMP amplifier family and is ideal for precision and low noise applications with low voltage requirements.

    This operational amplifier offers low voltage noise of 2.9 nV/ √Hz with a 1/f corner of only 3 Hz. The LMP7732 has bipolar junction input stages with a bias current of only 1.5 nA. This low input bias current, complemented by the very low level of voltage noise, makes the LMP7732 an excellent choice for photometry applications.

    The LMP7732 provides a wide GBW of 22 MHz while consuming only 4 mA of current. This high gain bandwidth along with the high open loop gain of 130 dB enables accurate signal conditioning in applications with high closed loop gain requirements.

    The LMP7732 has a supply voltage range of 1.8V to 5.5V, making it an ideal choice for battery operated portable applications.

    The LMP7732 is offered in the 8-Pin SOIC and MSOP packages.

    The LMP7731 is the single version of this product and is offered in the 5-Pin SOT-23 and 8-Pin SOIC packages.


    Applications

  • Gas analysis instruments
  • Photometric instrumentation
  • Medical instrumentation

    • Also Recommended
    LMP7731▲Single Version

    		Connection Diagram
    click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLMP7732 LMP7731
    Offset Voltage max, 25C0.5 mV 0.5 mV
    TcVos1 uV/degC 1 uV/degC
    CMRR120 dB 120 dB
    PSRR129 dB 129 dB
    Avol130 dB 130 dB
    Voltage Noise2.9 nV/root(Hz) 2.9 nV/root(Hz)
    Max Input Bias Current85 nA 85 nA
    Gain Bandwidth22 MHz 22 MHz
    Supply Current Per Channel2.2 mA 2.2 mA
    PowerWise Rating 2100 uA/MHz 100 uA/MHz
    Slew Rate2.4 Volts/usec 2.4 Volts/usec
    Channels2 Channels 1 Channels
    Supply Min2.5 Volt 2.5 Volt
    Supply Max5.5 Volt 5.5 Volt
    Input OutputTypeR-R In and Out R-R In and Out
    Output Current47 mA 47 mA
    Shut downNo No
    Special FeaturesLow 1/F Noise Low 1/f corner
    Temperature Min-40 deg C -40 deg C
    Temperature Max125 deg C 125 deg C
    FunctionOp Amp Op Amp
    AutomotiveYes Yes
    PowerWiseYes Yes

    Datasheets
    TitleSizeDateOther
    Language
    LMP7732 2.9 nV/sqrt(Hz) Low Noise, RRIO Amplifier730
    Kbytes    		17-Nov-11日本語  


    Other Technical Documents
    TitleTypeDate
    Simplifying Sensor Signal Path DesignExternal Article 2008-12-01

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMP7732MA/NOPB


    RoHS Status

    SOIC NARROW    		Full production
    Lead Time: 26 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide475
    AVNET-EMWorldwide285
    DIGI-KEYWorldwide110
    FARNELLEurope and Asia610
    MOUSERWorldwide212
    NEWARKAmericas280
    RS COMPONENTSWorldwide17
    TAYLORAmericas250
    		$1.40 each at 1K+ pcsrail
    of
    95
    LMP7732MAX/NOPB


    RoHS Status

    SOIC NARROW    		Full production
    Lead Time: 26 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.40 each at 1K+ pcsreel
    of
    2500
    LMP7732MM/NOPB


    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 26 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    FARNELLEurope and Asia51
    		$1.40 each at 1K+ pcsreel
    of
    1000
    LMP7732MME/NOPB


    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 26 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide250
    DIGI-KEYWorldwide3397
    FARNELLEurope and Asia250
    NEWARKAmericas250
    		$1.40 each at 1K+ pcsreel
    of
    250
    LMP7732MMX/NOPB


    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 26 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.40 each at 1K+ pcsreel
    of
    3500

    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 LMP7732.

    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 LMP7732 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LMP7732MA/NOPB

    		69.761
    		SOIC NARROW81260DetailDownloadspice file
    		NSZXTT
    LMP77
    32MA
    LMP7732MAX/NOPB

    		69.761
    		SOIC NARROW81260DetailDownloadspice file
    		NSZXTT
    LMP77
    32MA
    LMP7732MM/NOPB

    		29.851
    		MINI SOIC81260DetailDownloadspice file
    		ZXTT
    AZ3A
    LMP7732MME/NOPB

    		29.851
    		MINI SOIC81260DetailDownloadspice file
    		ZXTT
    AZ3A
    LMP7732MMX/NOPB

    		29.851
    		MINI SOIC81260DetailDownloadspice file
    		ZXTT
    AZ3A

    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 LMP7732.

    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 LMP7732 is located at RoHS Status.

    CAD Symbols and Models
    Download LMP7732 CAD Symbols
    		 Models
    spice file


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LMP7732MAVIP50CLZ305670009450004268146330
    LMP7732MAXVIP50CLZ305670009450004268146330
    LMP7732MMVIP50CLZ305670009450004268146330
    LMP7732MMEVIP50CLZ305670009450004268146330
    LMP7732MMXVIP50CLZ305670009450004268146330

    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 LMP7732.

    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 LMP7732 is located at RoHS Status.

    LM96511 Ultrasound AFE Demo
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    WEBENCH® Sensor Designer
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    LM96511 Ultrasound AFE Demo
    Date: 2010-08-27
    Length: 0:06:12
    WEBENCH® Sensor Designer
    Date: 2009-11-30
    Length: 0:30:00
    [Information as of 9-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation