National Semiconductor | High-performance Analog

 

 LMP7704   

Precision, CMOS Input, RRIO, Wide Supply Range Amplifiers
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Features

Unless otherwise noted, typical values at VS = 5V

Input offset voltage (LMP7701)

±200 µV (max)

Input offset voltage (LMP7702/LMP7704)

±220 µV (max)

Input bias current

±200 fA

Input voltage noise

9 nV/ Hz

CMRR

130 dB

Open loop gain

130 dB

Temperature range

−40°C to 125°C

Unity gain bandwidth

2.5 MHz

Supply current (LMP7701)

715 µA

Supply current (LMP7702)

1.5 mA

Supply current (LMP7704)

2.9 mA

Supply voltage range

2.7V to 12V

Rail-to-rail input and output

Description

The LMP7701/LMP7702/LMP7704 are single, dual, and quad low offset voltage, rail-to-rail input and output precision amplifiers each with a CMOS input stage and a wide supply voltage range. The LMP7701/LMP7702/LMP7704 are part of the LMP precision amplifier family and are ideal for sensor interface and other instrumentation applications.

The guaranteed low offset voltage of less than ±200 µV along with the guaranteed low input bias current of less than ±1 pA make the LMP7701 ideal for precision applications. The LMP7701/LMP7702/LMP7704 are built utilizing VIP50 technology, which allows the combination of a CMOS input stage and a 12V common mode and supply voltage range. This makes the LMP7701/LMP7702/LMP7704 great choices in many applications where conventional CMOS parts cannot operate under the desired voltage conditions.

The LMP7701/LMP7702/LMP7704 each have a rail-to-rail input stage that significantly reduces the CMRR glitch commonly associated with rail-to-rail input amplifiers. This is achieved by trimming both sides of the complimentary input stage, thereby reducing the difference between the NMOS and PMOS offsets. The output of the LMP7701/LMP7702/LMP7704 swings within 40 mV of either rail to maximize the signal dynamic range in applications requiring low supply voltage.

The LMP7701 is offered in the space saving 5-Pin SOT23 and 8-Pin SOIC package. The LMP7702 is offered in the 8-Pin SOIC and 8-Pin MSOP package. The quad LMP7704 is offered in the 14-Pin SOIC and 14-Pin TSSOP package. These small packages are ideal solutions for area constrained PC boards and portable electronics.


Applications

  • High impedance sensor interface
  • Battery powered instrumentation
  • High gain amplifiers
  • DAC buffer
  • Instrumentation amplifier
  • Active filters
  • LMP7704 Webench® Custom
    Design/Analyze/Build It
    Select Topology
    Active Filter Designer
    Inverting Amplifier
    AC-Coupled Inverting Amp
    NonInverting Amp
    Lowpass Filter
    Lowpass Filter 4th Order
    Highpass Filter
    Required Parameters
    Supply voltage:
    If "Other", Positive Supply is: V
    If "Other", Negative Supply is: V
    NOTE: 2.7 V <= Total Supply Voltage <= 12 V

    What is Webench?

    Also Recommended
    LMP7701Single Version
    LMP7702Dual Version
    LMP7709Decompensated Version Of LMP7704, Higher Bandwidth (14 Mhz, Av=10)



    Typical Application
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    Connection Diagram
    *click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLMP7704 LMP7701 LMP7702 LMP7709
    Offset Voltage max, 25C0.22 mV 0.2 mV 0.22 mV 0.15 mV
    TcVos1 uV/degC 1 uV/degC 1 uV/degC 1 uV/degC
    CMRR130 dB 130 dB 130 dB 138 dB
    PSRR100 dB 100 dB 100 dB 98 dB
    Avol119 dB 119 dB 119 dB 119 dB
    Voltage Noise9 nV/root(Hz) 9 nV/root(Hz) 9 nV/root(Hz) 9 nV/root(Hz)
    Max Input Bias Current0.4 nA 0.05 nA 0.4 nA 0.05 nA
    Gain Bandwidth2.5 MHz 2.5 MHz 2.5 MHz 14 MHz
    Supply Current Per Channel0.725 mA 0.715 mA 0.75 mA 0.75 mA
    PowerWise Rating 2290 uA/MHz 286 uA/MHz 300 uA/MHz 53.6 uA/MHz
    Slew Rate1 Volts/usec 1 Volts/usec 1 Volts/usec 5.6 Volts/usec
    Channels4 Channels 1 Channels 2 Channels 4 Channels
    Supply Min2.7 Volt 2.7 Volt 2.7 Volt 2.7 Volt
    Supply Max12 Volt 12 Volt 12 Volt 12 Volt
    Input OutputTypeR-R In and Out R-R In and Out R-R In and Out R-R In and Out
    Output Current66 mA 66 mA 66 mA 66 mA
    Shut downNo No No No
    Special FeaturesLow Offset CMOS Input Low Offset CMOS Input Low Offset CMOS Input AvCl>10, Decomp
    Temperature Min-40 deg C -40 deg C -40 deg C -40 deg C
    Temperature Max125 deg C 125 deg C 125 deg C 125 deg C
    FunctionOp Amp Op Amp Op Amp Op Amp
    AutomotiveYes Yes Yes Yes

    Datasheets
    TitleSizeDateOther
    Language
    LMP7704 Precision, CMOS Input, RRIO, Wide Supply Range Amplifiers1569
    Kbytes
    23-Jun-08日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-1515: Application Note 1515 A Comprehensive Study of the Howland Current Pump227
    Kbytes
    29-Jan-08 
    AN-1559: Application Note 1559 Practical RTD Interface Solutions215
    Kbytes
    10-Oct-07日本語
    中文


    Other Technical Documents
    TitleTypeDate
    Optimizing Portable Applications with D/A ConvertersTechnology Edge 2006-09-01

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMP7704MA/NOPB


    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1265
    AVNET-EMWorldwide55
    DIGI-KEYWorldwide0
    FARNELLEurope and Asia202
    MOUSERWorldwide207
    NEWARKAmericas18
    TAYLORAmericas1265
    $1.75 each at 1K+ pcsrail
    of
    55
    LMP7704MAX/NOPB


    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $1.75 each at 1K+ pcsreel
    of
    2500
    LMP7704MT/NOPB

    LMP7704MT

    RoHS Status


    TSSOP
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide38
    AVNET-EMWorldwide2739
    DIGI-KEYWorldwide3467
    FARNELLEurope and Asia973
    NEWARKAmericas417
    RS COMPONENTSWorldwide64
    TAYLORAmericas38
    $1.75 each at 1K+ pcsrail
    of
    94
    LMP7704MTX/NOPB

    LMP7704MTX

    RoHS Status


    TSSOP
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $1.75 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 LMP7704.

    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 LMP7704 is located at RoHS Status.

    Part Number(s)
    (NSID)
    Weight
    (milligrams)
    TypePinsMSL RatingPeak ReflowRoHS
    Status
    CAD SymbolsModelsPackage
    Marking
    Format
    LMP7704MA/NOPB

    129.551
    SOIC NARROW141260DetailDownloadspice file
    NSUZXYTTE#
    LMP7704
    MA
    LMP7704MAX/NOPB

    129.551
    SOIC NARROW141260DetailDownloadspice file
    NSUZXYTTE#
    LMP7704
    MA
    LMP7704MT/NOPB

    LMP7704MT
    53.783
    54.004
    TSSOP141
    1
    260
    260
    DetailDownloadspice file
    NSUZXYTT
    LMP77
    04MT
    LMP7704MTX/NOPB

    LMP7704MTX
    53.783
    54.004
    TSSOP141
    1
    260
    260
    DetailDownloadspice file
    NSUZXYTT
    LMP77
    04MT

    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 LMP7704.

    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 LMP7704 is located at RoHS Status.

    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LMP7704MAVIP50CLZ305670009450004268146330
    LMP7704MAXVIP50CLZ305670009450004268146330
    LMP7704MTVIP50CLZ305670009450004268146330
    LMP7704MTXVIP50CLZ305670009450004268146330

    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 LMP7704.

    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 LMP7704 is located at RoHS Status.

    Data Acquisition In Factory Automation
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    Factory Automation Overview
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    Sensing Solutions In Factory Automation
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    Data Acquisition In Factory Automation
    Date: 2009-08-24
    Length: 0:31:29
    Factory Automation Overview
    Date: 2009-08-04
    Length: 0:32:30
    Sensing Solutions In Factory Automation
    Date: 2009-07-10
    Length: 0:50:00
    [Information as of 9-Feb-2012]