National Semiconductor | High-performance Analog

 

 LMV832   

Dual 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 2 Channels
    Supply Current Per Channel 0.24 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 Yes
    PowerWise Yes

    Datasheets
    TitleSizeDateOther
    Language
    LMV832 Dual 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
    Board Layout Guidelines and the Mistake of Single-Point GroundingExternal Article 2009-02-19

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMV832MM/NOPB


    RoHS Status


    MINI SOIC
    Full production
    Lead Time: 12 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    FARNELLEurope and Asia843
    $0.70 each at 1K+ pcsreel
    of
    1000
    LMV832MME/NOPB


    RoHS Status


    MINI SOIC
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide500
    AVNET-EMWorldwide500
    DIGI-KEYWorldwide1650
    FARNELLEurope and Asia355
    MOUSERWorldwide500
    TAYLORAmericas500
    $0.70 each at 1K+ pcsreel
    of
    250
    LMV832MMX/NOPB


    RoHS Status


    MINI SOIC
    Full production
    Lead Time: 16 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $0.70 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 LMV832.

    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 LMV832 is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMV832MMEVAL
    Evaluation Board for the LMV832 3.3MHz EMI Hardened Operation AmplifierFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide1
    $53.00 each1

    Description:

    National`s LMV832 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 LMV832 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:




    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
    LMV832MM/NOPB

    29.851
    MINI SOIC81260DetailDownloadspice file
    ZXTT
    AU5A
    LMV832MME/NOPB

    29.851
    MINI SOIC81260DetailDownloadspice file
    ZXTT
    AU5A
    LMV832MMX/NOPB

    29.851
    MINI SOIC81260DetailDownloadspice file
    ZXTT
    AU5A

    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 LMV832.

    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 LMV832 is located at RoHS Status.

    CAD Symbols and Models
    Download LMV832 CAD Symbols
     Models
    spice file


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LMV832MMCMOS70213010015840003449464325
    LMV832MMECMOS70213010015840003449464325
    LMV832MMXCMOS70213010015840003449464325

    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 LMV832.

    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 LMV832 is located at RoHS Status.

    EMI-Hardened Op Amp Demo
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    Precision Design Techniques: Amp Noise Design Considerations
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    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]