National Semiconductor | High-performance Analog

 

 LME49720   

Dual High Performance, High Fidelity Audio Operational Amplifier from the PowerWise® Family
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Features

  • Easily drives 600Ω loads
  • Optimized for superior audio signal fidelity
  • Output short circuit protection
  • PSRR and CMRR exceed 120dB (typ)
  • SOIC, DIP, TO-99 metal can packages
  • Description

    The LME49720 is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49720 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LME49720 combines extremely low voltage noise density (2.7nV/ ^Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49720 has a high slew rate of ±20V/μs and an output current capability of ±26mA. Further, dynamic range is maximized by an output stage that drives 2kΩ loads to within 1V of either power supply voltage and to within 1.4V when driving 600Ω loads.

    The LME49720's outstanding CMRR (120dB), PSRR (120dB), and VOS (0.1mV) give the amplifier excellent operational amplifier DC performance.

    The LME49720 has a wide supply range of ±2.5V to ±17V. Over this supply range the LME49720’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LME49720 is unity gain stable. This Audio Operational Amplifier achieves outstanding AC performance while driving complex loads with values as high as 100pF.

    The LME49720 is available in 8–lead narrow body SOIC, 8–lead Plastic DIP, and 8–lead Metal Can TO-99. Demonstration boards are available for each package.

    Key Specification
    Power Supply Voltage Range ±2.5V to ±17V
    THD+N (AV = 1, VOUT = 3VRMS, fIN = 1kHz)  
     RL = 2kΩ 0.00003% (typ)
     RL = 600Ω 0.00003% (typ)
    Input Noise Density 2.7nV/ ^Hz (typ)
    Slew Rate ±20V/μs (typ)
    Gain Bandwidth Product 55MHz (typ)
    Open Loop Gain (RL = 600Ω) 140dB (typ)
    Input Bias Current 10nA (typ)
    Input Offset Voltage 0.1mV (typ)
    DC Gain Linearity Error 0.000009%


    Applications

  • Ultra high quality audio amplification
  • High fidelity preamplifiers
  • High fidelity multimedia
  • State of the art phono pre amps
  • High performance professional audio
  • High fidelity equalization and crossover networks
  • High performance line drivers
  • High performance line receivers
  • High fidelity active filters



  •  

    ParametersValues
    THD 0.00003 %
    PSRR 120 dB
    Supply Min 5 Volt
    Single/Dual/Quad Dual
    Special Features Very Low Noise, Ultra Low Distortion
    THD Conditions Av=1; Vout=3Vrms; Load=600ohm and 2k
    PSRR Conditions delta(Vs)=20V
    Supply Current per Amplifier 5.0 mA
    Supply Max 34 Volt
    Shut down No
    Voltage Noise 2.5 nV/root(Hz)
    Max Input Bias Current 72 nA
    Output Current 42 mA
    Offset Voltage, typ 0.1 mV
    Gain Bandwidth 55 MHz
    Slew Rate 20 Volts/usec
    CMRR 120 dB
    CMRR Conditions Vcm from -10V to +10V
    Temperature Min -40 deg C
    Temperature Max 85 deg C
    Channels 2 Channels
    Input OutputType Not Rail to Rail
    Offset Voltage max, 25C 0.7 mV
    Automotive Yes
    PowerWise Yes

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LME49720HA/NOPB


    RoHS Status


    TO-99
    Full production
    Lead Time: 12 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide40
    AVNET-EMWorldwide27
    DIGI-KEYWorldwide84
    FARNELLEurope and Asia5
    MOUSERWorldwide36
    NEWARKAmericas5
    TAYLORAmericas40
    $10.50 each at 1K+ pcstray
    of
    20
    LME49720MA/NOPB


    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide241
    AVNET-EMWorldwide17168
    DIGI-KEYWorldwide969
    FARNELLEurope and Asia389
    MOUSERWorldwide130
    NEWARKAmericas209
    TAYLORAmericas241
    $1.15 each at 1K+ pcsrail
    of
    95
    LME49720MAX/NOPB


    RoHS Status


    SOIC NARROW
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide15000
    DIGI-KEYWorldwide0
    MOUSERWorldwide2459
    $1.15 each at 1K+ pcsreel
    of
    2500
    LME49720NA/NOPB


    RoHS Status


    MDIP
    Full production
    Lead Time: 12 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide262
    DIGI-KEYWorldwide342
    FARNELLEurope and Asia236
    NEWARKAmericas236
    TAYLORAmericas42
    $1.15 each at 1K+ pcsrail
    of
    40

    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 LME49720.

    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 LME49720 is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LME49720HABD
    34V High Performance, High Fidelity Dual Audio Operational AmplifierFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $150.00 each1

    Description:

    The LME49720 is a Dual High Fidelity Audio Operational Amplifier. This Audio Amplifier offers near zero THD+N and sets a new standard for high end audio users. National's newest Amplifier uses state of the art circuitry and process to achieve a new class of audio performance and technology. The AC and DC parameters in this amplifier series offers users a solution well suited for the most demanding signal path applications. There are two package choices to enable all users' ease of use and evaluation criteria.

    The LME49720 is designed for high slew rate, low noise and high output for systems needing +/-2.5 to +/-17V functionality. The pin out is the National standard to quickly upgrade existing boards. This series is for applications such as high quality audio amplification, multi-media, imaging, line drivers/receivers and active filters. The output current is for 600Ohm loads with more than 26mA drive with THD+N over a wide voltage range.

    The LME49720MABD, LME49720HABD and LME49720NABD are evaluation boards designed to establish performance and evaluation to design the best end user system. The evaluation boards include all components for a ready-to-use, stand-alone bench work.

    Features:

    • Dual Audio Operational Amplifier
    • Ultra low THD+N of 0.00003%
    • 34V operation and low noise
    • 600Ohm loads
    • SNR 97dB
    • High output of 26mA
    • Gain Bandwidth Product >55MHz
    • 20uV/S Slew rate
    • DC Gain Linearity Error of 0.000009%
    • PSRR >120dB
    • CMRR >120dB
    • Vos is 0.1mV
    • Three package offerings (SOIC, DIP, and Metal Can)

    Applications:

    • High Fidelity Audio Equipment
    • High Fidelity drivers/receivers
    • 34V Industrial applications

    Contents:

    • Fully Assembled LME49720 Evaluation Board
    • Instructions for where to locate and download the datasheet

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LME49720MABD
    34V High Performance, High Fidelity Dual Audio Operational AmplifierFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide1
    $150.00 each1

    Description:

    The LME49720 is a Dual High Fidelity Audio Operational Amplifier. This Audio Amplifier offers near zero THD+N and sets a new standard for high end audio users. National's newest Amplifier uses state of the art circuitry and process to achieve a new class of audio performance and technology. The AC and DC parameters in this amplifier series offers users a solution well suited for the most demanding signal path applications. There are two package choices to enable all users' ease of use and evaluation criteria.

    The LME49720 is designed for high slew rate, low noise and high output for systems needing +/-2.5 to +/-17V functionality. The pin out is the National standard to quickly upgrade existing boards. This series is for applications such as high quality audio amplification, multi-media, imaging, line drivers/receivers and active filters. The output current is for 600Ohm loads with more than 26mA drive with THD+N over a wide voltage range.

    The LME49720MABD, LME49720HABD and LME49720NABD are evaluation boards designed to establish performance and evaluation to design the best end user system. The evaluation boards include all components for a ready-to-use, stand-alone bench work.

    Features:

    • Dual Audio Operational Amplifier
    • Ultra low THD+N of 0.00003%
    • 34V operation and low noise
    • 600Ohm loads
    • SNR 97dB
    • High output of 26mA
    • Gain Bandwidth Product >55MHz
    • 20uV/S Slew rate
    • DC Gain Linearity Error of 0.000009%
    • PSRR >120dB
    • CMRR >120dB
    • Vos is 0.1mV
    • Three package offerings (SOIC, DIP, and Metal Can)

    Applications:

    • High Fidelity Audio Equipment
    • High Fidelity drivers/receivers
    • 34V Industrial applications

    Contents:

    • Fully Assembled LME49720 Evaluation Board
    • Instructions for where to locate and download the datasheet

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LME49720NABD
    34V High Performance, High Fidelity Dual Audio Operational AmplifierFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    CALLN/A

    Description:

    The LME49720 is a Dual High Fidelity Audio Operational Amplifier. This Audio Amplifier offers near zero THD+N and sets a new standard for high end audio users. National's newest Amplifier uses state of the art circuitry and process to achieve a new class of audio performance and technology. The AC and DC parameters in this amplifier series offers users a solution well suited for the most demanding signal path applications. There are two package choices to enable all users' ease of use and evaluation criteria.

    The LME49720 is designed for high slew rate, low noise and high output for systems needing +/-2.5 to +/-17V functionality. The pin out is the National standard to quickly upgrade existing boards. This series is for applications such as high quality audio amplification, multi-media, imaging, line drivers/receivers and active filters. The output current is for 600Ohm loads with more than 26mA drive with THD+N over a wide voltage range.

    The LME49720MABD, LME49720HABD and LME49720NABD are evaluation boards designed to establish performance and evaluation to design the best end user system. The evaluation boards include all components for a ready-to-use, stand-alone bench work.

    Features:

    • Dual Audio Operational Amplifier
    • Ultra low THD+N of 0.00003%
    • 34V operation and low noise
    • 600Ohm loads
    • SNR 97dB
    • High output of 26mA
    • Gain Bandwidth Product >55MHz
    • 20uV/S Slew rate
    • DC Gain Linearity Error of 0.000009%
    • PSRR >120dB
    • CMRR >120dB
    • Vos is 0.1mV
    • Three package offerings (SOIC, DIP, and Metal Can)

    Applications:

    • High Fidelity Audio Equipment
    • High Fidelity drivers/receivers
    • 34V Industrial applications

    Contents:

    • Fully Assembled LME49720 Evaluation Board
    • Instructions for where to locate and download the datasheet



    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
    LME49720HA/NOPB

    969.917
    TO-9981NADetailN/Aspice file
    NSZXYTTE#
    LME
    49720HA
    LME49720MA/NOPB

    69.761
    SOIC NARROW81260DetailN/Aspice file
    NSZXTT
    L49720
    MA
    LME49720MAX/NOPB

    69.761
    SOIC NARROW81260DetailN/Aspice file
    NSZXTT
    L49720
    MA
    LME49720NA/NOPB

    508.252
    MDIP81NADetailN/Aspice file
    NSUZXYTTE#
    LME
    49720NA

    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 LME49720.

    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 LME49720 is located at RoHS Status.

    CAD Symbols and Models
    N/A
     Models
    spice file


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LME49720HAVIP III0161600013025003369587931
    LME49720MAVIP III0161600013025003369587931
    LME49720MAXVIP III0161600013025003369587931
    LME49720NAVIP III0161600013025003369587931

    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 LME49720.

    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 LME49720 is located at RoHS Status.

    [Information as of 3-Feb-2012]