National Semiconductor | High-performance Analog

 

 LMP7702   

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
  • LMP7702 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 Of LMP7702
    LMP7704Quad Version Of LMP7702
    LMP7708Decompensated Version Of LMP7702, Higher Bandwidth (14 Mhz, Av=10)
    LMP7712LMP7712 - Dual Precision, 17 MHz, Low Noise, CMOS Input Amplifier
    LMP7716LMP7716 - Dual Precision, 17 MHz, Low Noise, CMOS Input Amplifier



    Typical Application
    click for larger image


    Connection Diagram
    *click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLMP7702 LMP7701 LMP7704 LMP7708 LMP7712 LMP7716
    Offset Voltage max, 25C0.22 mV 0.2 mV 0.22 mV 0.15 mV 0.15 mV 0.15 mV
    TcVos1 uV/degC 1 uV/degC 1 uV/degC 1 uV/degC 1.75 uV/degC 1.8 uV/degC
    CMRR130 dB 130 dB 130 dB 138 dB 100 dB 100 dB
    PSRR100 dB 100 dB 100 dB 98 dB 100 dB 98 dB
    Avol119 dB 119 dB 119 dB 119 dB 95 dB 110 dB
    Voltage Noise9 nV/root(Hz) 9 nV/root(Hz) 9 nV/root(Hz) 9 nV/root(Hz) 5.8 nV/root(Hz) 5.8 nV/root(Hz)
    Max Input Bias Current0.4 nA 0.05 nA 0.4 nA 0.05 nA 0.1 nA 0.1 nA
    Gain Bandwidth2.5 MHz 2.5 MHz 2.5 MHz 14 MHz 17 MHz 17 MHz
    Supply Current Per Channel0.75 mA 0.715 mA 0.725 mA 0.75 mA 1.3 mA 1.3 mA
    PowerWise Rating 2300 uA/MHz 286 uA/MHz 290 uA/MHz 53.6 uA/MHz 76.5 uA/MHz 76.5 uA/MHz
    Slew Rate1 Volts/usec 1 Volts/usec 1 Volts/usec 5.6 Volts/usec 9.5 Volts/usec 9.5 Volts/usec
    Channels2 Channels 1 Channels 4 Channels 2 Channels 2 Channels 2 Channels
    Supply Min2.7 Volt 2.7 Volt 2.7 Volt 2.7 Volt 1.8 Volt 1.8 Volt
    Supply Max12 Volt 12 Volt 12 Volt 12 Volt 5.5 Volt 5.5 Volt
    Input OutputTypeR-R In and Out R-R In and Out R-R In and Out R-R In and Out Vcm to V-, R-R Out Vcm to V-, R-R Out
    Output Current66 mA 66 mA 66 mA 66 mA 23 mA 21 mA
    Shut downNo No No No Yes No
    Special FeaturesLow Offset CMOS Input Low Offset CMOS Input Low Offset CMOS Input AvCl>10, Decomp Low Noise CMOS Input Low Noise, Low Offset CMOS
    Temperature Min-40 deg C -40 deg C -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 125 deg C 125 deg C
    FunctionOp Amp Op Amp Op Amp Op Amp Op Amp Op Amp
    AutomotiveYes Yes Yes Yes Yes Yes

    Datasheets
    TitleSizeDateOther
    Language
    LMP7702 Precision, CMOS Input, RRIO, Wide Supply Range Amplifiers1569
    Kbytes
    23-Jun-08日本語  


    Application Notes
    TitleSizeDateOther
    Language
    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
    Bridging the Divide: A DAC Applications Tutorial (Precision Signal Path)Signal Path Designer 2010-09-23
    Bridging the Divide: Designing with DACs (Part 3)External Article 2010-07-06

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMP7702MA/NOPB


    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide345
    AVNET-EMWorldwide349
    DIGI-KEYWorldwide254
    FARNELLEurope and Asia581
    MOUSERWorldwide391
    NEWARKAmericas265
    TAYLORAmericas345
    $1.30 each at 1K+ pcsrail
    of
    95
    LMP7702MAX/NOPB


    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide1440
    DIGI-KEYWorldwide0
    TAYLORAmericas1440
    $1.30 each at 1K+ pcsreel
    of
    2500
    LMP7702MM/NOPB

    LMP7702MM

    RoHS Status


    MINI SOIC
    Full production
    Lead Time: 8 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide6381
    AVNET-EMWorldwide1313
    DIGI-KEYWorldwide13553
    FARNELLEurope and Asia3425
    MOUSERWorldwide949
    NEWARKAmericas3675
    RS COMPONENTSWorldwide575
    TAYLORAmericas6381
    $1.30 each at 1K+ pcsreel
    of
    1000
    LMP7702MMX/NOPB

    LMP7702MMX

    RoHS Status


    MINI SOIC
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $1.30 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 LMP7702.

    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 LMP7702 is located at RoHS Status.

    Part Number(s)
    (NSID)
    Weight
    (milligrams)
    TypePinsMSL RatingPeak ReflowRoHS
    Status
    CAD SymbolsModelsPackage
    Marking
    Format
    LMP7702MA/NOPB

    69.761
    SOIC NARROW81260DetailDownloadspice file
    NSZXTT
    LMP77
    02MA
    LMP7702MAX/NOPB

    69.761
    SOIC NARROW81260DetailDownloadspice file
    NSZXTT
    LMP77
    02MA
    LMP7702MM/NOPB

    LMP7702MM
    29.851
    30.002
    MINI SOIC81
    1
    260
    260
    DetailDownloadspice file
    ZXTT
    AA3A
    LMP7702MMX/NOPB

    LMP7702MMX
    29.851
    30.002
    MINI SOIC81
    1
    260
    260
    DetailDownloadspice file
    ZXTT
    AA3A

    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 LMP7702.

    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 LMP7702 is located at RoHS Status.

    CAD Symbols and Models
    Download LMP7702 CAD Symbols
     Models
    spice file


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LMP7702MAVIP50CLZ305670009450004268146330
    LMP7702MAXVIP50CLZ305670009450004268146330
    LMP7702MMVIP50CLZ305670009450004268146330
    LMP7702MMXVIP50CLZ305670009450004268146330

    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 LMP7702.

    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 LMP7702 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 7-Feb-2012]