National Semiconductor | High-performance Analog

 

 LMV831   

Single 3.3 MHz Low Power CMOS, EMI Hardened Operational Amplifier from the PowerWise® Family
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Features

Unless otherwise noted, typical values at TA= 25°C, V + = 3.3V

Supply voltage

2.7V to 5.5V

Supply current (per channel)

240 µA

Input offset voltage

1 mV max

Input bias current

0.1 pA

GBW

3.3 MHz

EMIRR at 1.8 GHz

120 dB

Input noise voltage at 1 kHz

12 nV/ Hz

Slew rate

2 V/µs

Output voltage swing

Rail-to-Rail

Output current drive

30 mA

Operating ambient temperature range

−40°C to 125°C

Description

National’s LMV831, LMV832, and LMV834 are CMOS input, low power op amp IC's, providing a low input bias current, a wide temperature range of −40°C to 125°C and exceptional performance making them robust general purpose parts. Additionally, the LMV831/LMV832/LMV834 are EMI hardened to minimize any interference so they are ideal for EMI sensitive applications.

The unity gain stable LMV831/LMV832/LMV834 feature 3.3 MHz of bandwidth while consuming only 0.24 mA of current per channel. These parts also maintain stability for capacitive loads as large as 200 pF. The LMV831/LMV832/LMV834 provide superior performance and economy in terms of power and space usage.

This family of parts has a maximum input offset voltage of 1 mV, a rail-to-rail output stage and an input common-mode voltage range that includes ground. Over an operating range from 2.7V to 5.5V the LMV831/LMV832/LMV834 provide a PSRR of 93 dB, and a CMRR of 91 dB. The LMV831 is offered in the space saving 5-Pin SC70 package, the LMV832 in the 8-Pin MSOP and the LMV834 is offered in the 14-Pin TSSOP package.


Applications

  • Photodiode preamp
  • Piezoelectric sensors
  • Portable/battery-powered electronic equipment
  • Filters/buffers
  • PDAs/phone accessories


  • Typical Application

     

    ParametersValues
    Supply Min 2.7 Volt
    Supply Max 5.5 Volt
    Gain Bandwidth 3.3 MHz
    Channels 1 Channels
    Supply Current Per Channel 0.25 mA
    PowerWise Rating 2 72 uA/MHz
    Slew Rate 2 Volts/usec
    Offset Voltage max, 25C 1 mV
    Max Input Bias Current 0.01 nA
    Input OutputType Vcm to V-, R-R Out
    Output Current 64 mA
    Voltage Noise 12 nV/root(Hz)
    Shut down No
    Special Features EMI Hardened
    Temperature Min -40 deg C
    Temperature Max 125 deg C
    Function Op Amp
    Automotive No
    PowerWise Yes

    Datasheets
    TitleSizeDateOther
    Language
    LMV831 Single 3.3 MHz Low Power CMOS, EMI Hardened Operational Amplifier1060
    Kbytes
    6-Oct-08日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-1867: Application Note 1867 EMIRR Evaluation Boards for LMV831/LMV832/LMV834556
    Kbytes
    5-Oct-08 


    Other Technical Documents
    TitleTypeDate
    EMI Susceptibility in Analog CircuitsExternal Article 2008-08-01
    Board Layout Guidelines and the Mistake of Single-Point GroundingExternal Article 2009-02-19

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMV831MG/NOPB


    RoHS Status


    SC-70
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    FARNELLEurope and Asia450
    MOUSERWorldwide1000
    RSL MICROAsia Pacific2000
    $0.55 each at 1K+ pcsreel
    of
    1000
    LMV831MGE/NOPB


    RoHS Status


    SC-70
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide250
    DIGI-KEYWorldwide10
    FARNELLEurope and Asia905
    MOUSERWorldwide26
    NEWARKAmericas75
    TAYLORAmericas250
    $0.55 each at 1K+ pcsreel
    of
    250
    LMV831MGX/NOPB


    RoHS Status


    SC-70
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide30000
    DIGI-KEYWorldwide0
    TAYLORAmericas30000
    $0.55 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 LMV831.

    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 LMV831 is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMV831MGEVAL
    Evaluation Board for the LMV831 3.3MHz EMI Hardened Operation AmplifierFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide1
    $45.90 each1

    Description:

    Nationals LMV831 is a CMOS input, low power op amp IC, providing a low input bias current, a wide temperature range of -40°C to +125°C and exceptional performance, making this IC a robust general purpose part. To demonstrate the EMI robustness of the LMV831 and to be able to measure the parameter EMIRR, an evaluation board has been developed. A description of the evaluation board and how to perform EMIRR measurements can be found in Application Note AN-1867. Focus is on one of the input pins as those are most sensitive to EMI. Based on symmetry considerations, it can be expected that both inputs have the same EMIRR. For reasons of simplicity of the required schematic the measurement on the IN+ pin is selected. A detailed description on EMI and the EMIRR for the other pins can be found in Application Note AN-1698.

    Contents:


    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    551012922-001/NOPB

    SC-70 Amplifier Universal Evaluation BoardFull production
    Lead Free (RoHS)

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    FARNELLEurope and Asia1
    MOUSERWorldwide5
    NEWARKAmericas1
    $4.00 each1

    Description:

    National Semiconductor offers this blank universal Evaluation Board to help you evaluate the performance of any low voltage, low power operational amplifier that is offered in the SC-70 package. Resistors, capacitors, or any other components can be easily mounted on this board. These components can be chosen from any of the following three popular sizes: 1206, 0805, and, 0603. The op amp can then be tested under the conditions of your choice.

    The 551012922-001 Evaluation Board allows quick and easy evaluation of the part. You need only supply an analog input signaland a power supply to the evaluation board.

    Features:

    • Universal for all low voltage, low power op amps.
    • Dual sided layout for different pin-outs.
    • Accommodates components of any of these sizes:
           1206
           0805
           0603
    • Quick and easy evaluation.

    Contents:

    • One 551012922-001 Evaluation Board

    Op Amp Evaluation Boards User`s Manual (SOT-23 and SC-70)




    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
    LMV831MG/NOPB

    7.65
    SC-7051260DetailDownloadspice file
    AFA
    XTT
    LMV831MGE/NOPB

    7.65
    SC-7051260DetailDownloadspice file
    AFA
    XTT
    LMV831MGX/NOPB

    7.65
    SC-7051260DetailDownloadspice file
    AFA
    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 LMV831.

    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 LMV831 is located at RoHS Status.

    CAD Symbols and Models
    Download LMV831 CAD Symbols
     Models
    spice file


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LMV831MGCMOS70213010015840003449464325
    LMV831MGECMOS70213010015840003449464325
    LMV831MGXCMOS70213010015840003449464325

    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 LMV831.

    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 LMV831 is located at RoHS Status.

    EMI-Hardened Op Amp Demo
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    Precision Design Techniques: Amp Noise Design Considerations
    Loading video...


    EMI & RFI in Op Amp Design
    Click image to play video in new window


    EMI-Hardened Op Amp Demo
    Date: 2010-04-14
    Length: 0:2:06
    Precision Design Techniques: Amp Noise Design Considerations
    Date: 2011-01-20
    Length: 00:31:00
    EMI & RFI in Op Amp Design
    Date: 2008-12-15
    Length: 0:18:34
    [Information as of 9-Feb-2012]