National Semiconductor | High-performance Analog

 

 LM393   
Low Power Low Offset Voltage Dual Comparator 		Click link to Download

Features
  • Wide supply

    Voltage range:

    2.0V to 36V

    Single or dual supplies:

    ±1.0V to ±18V

Very low supply current drain (0.4 mA) - independent of supply voltage

  

Low input biasing current:

25 nA

Low input offset current:

±5 nA

Maximum offset voltage:

±3 mV

Input common-mode voltage range includes ground

  

Differential input voltage range equal to the power supply voltage

  

Low output saturation voltage,:

250 mV at 4 mA

Output voltage compatible with TTL, DTL, ECL, MOS and CMOS logic systems

  

Available in the 8-Bump (12 mil) micro SMD package

  

See AN-1112 for micro SMD considerations

  

Description

The LM193 series consists of two independent precision voltage comparators with an offset voltage specification as low as 2.0 mV max for two comparators which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage.

Application areas include limit comparators, simple analog to digital converters; pulse, squarewave and time delay generators; wide range VCO; MOS clock timers; multivibrators and high voltage digital logic gates. The LM193 series was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the LM193 series will directly interface with MOS logic where their low power drain is a distinct advantage over standard comparators.

The LM393 and LM2903 parts are available in National's innovative thin micro SMD package with 8 (12 mil) large bumps.


Applications

  • High precision comparators
  • Reduced VOS drift over temperature
  • Eliminates need for dual supplies
  • Allows sensing near ground
  • Compatible with all forms of logic
  • Power drain suitable for battery operation

    • Also Recommended
    LMV762▲Improved Response Time
    LMV393▲Lower Voltage



    Typical Application
    *click for larger image


    		Connection Diagram
    *click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLM393 LMV762 LMV393
    Response Time0.4 us 0.12 us 0.2 us
    Output BusOpen Drain Push Pull Open Drain
    Supply Min2 Volt 2.7 Volt 2.7 Volt
    Supply Max36 Volt 5 Volt 5.5 Volt
    Channels2 Channels 2 Channels 2 Channels
    Offset Voltage max, 25C5 mV 0.2 mV 7 mV
    Output Current16 mA 40 mA 84 mA
    Input RangeVcm to V- Vcm to V- Vcm to V-
    Supply Current Per Channel0.2 mA 0.275 mA 0.0425 mA
    PowerWise Rating 380 uA x us 33 uA x us 9 uA x us
    Max Input Bias Current400 nA 0.05 nA 400 nA
    Special FeaturesUndefined Strobe Undefined
    Temperature Min0 deg C -40 deg C -40 deg C
    Temperature Max70 deg C 125 deg C 85 deg C
    FunctionComparator Comparator Comparator

    Datasheets
    TitleSizeDateOther
    Language
    LM393 Low Power Low Offset Voltage Dual Comparator411
    Kbytes    		12-Aug-02日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-274: Application Note 274 CMOS A/D Converter Interfaces Easily with Many Microprocessors73
    Kbytes    		3-Oct-02 

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM393M/NOPB

    LM393M

    RoHS Status

    SOIC NARROW    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide4825
    AVNET-EMWorldwide552
    DIGI-KEYWorldwide551
    FARNELLEurope and Asia8937
    MOUSERWorldwide2879
    NEWARKAmericas238
    RS COMPONENTSWorldwide1642
    TAYLORAmericas7309
    		$0.24 each at 1K+ pcsrail
    of
    95
    LM393MX/NOPB

    LM393MX

    RoHS Status

    SOIC NARROW    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AITGAsia Pacific1001
    ARROWWorldwide7951
    AVNET-EMWorldwide7450
    BRITESTONESouth Korea19004
    DIGI-KEYWorldwide15756
    FARNELLEurope and Asia469
    MOUSERWorldwide1960
    NEWARKAmericas469
    RSL MICROAsia Pacific50000
    TAYLORAmericas10267
    TECHMOSAAsia Pacific17500
    		$0.24 each at 1K+ pcsreel
    of
    2500
    LM393N/NOPB

    LM393N

    RoHS Status

    MDIP    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1409
    AVNET-EMWorldwide7441
    DIGI-KEYWorldwide1995
    FARNELLEurope and Asia6029
    MOUSERWorldwide1428
    NEWARKAmericas327
    ROCELECAmericas41
    RS COMPONENTSWorldwide2147
    RSL MICROAsia Pacific10000
    TAYLORAmericas5093
    		$0.28 each at 1K+ pcsrail
    of
    40
    LM393TL/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1649
    DIGI-KEYWorldwide0
    MOUSERWorldwide1090
    TAYLORAmericas1649
    		$0.28 each at 1K+ pcsreel
    of
    250
    LM393TLX/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.28 each at 1K+ pcsreel
    of
    3000
    LM393 MDC

    RoHS Status    		Full production
    Lead Time: 6 weeks

     

    Contact your distributor
    		CALLtray
    of
    N/A

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LM393AH
    		NONE
    		NONE
    		08 Sep 1999
    LM393H
    		LM193AH
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009

    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 LM393.

    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 LM393 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LM393M/NOPB

    LM393M
    		69.761
    70.001
    		SOIC NARROW81
    1    		260
    235    		DetailDownloadN/A
    		NSZXTT
    LM
    393M
    LM393MX/NOPB

    LM393MX
    		69.761
    70.001
    		SOIC NARROW81
    1    		260
    235    		DetailDownloadN/A
    		NSZXTT
    LM
    393M
    LM393N/NOPB

    LM393N
    		508.252
    510.002
    		MDIP81
    1    		NA
    NA    		DetailDownloadN/A
    		NSUZXYTTE#
    LM
    393N
    LM393TL/NOPB

    		2.808
    2.925
    		MICRO SMD81260DetailDownloadN/A
    		XVC
    I 02
    LM393TLX/NOPB

    		2.808
    2.925
    		MICRO SMD81260DetailDownloadN/A
    		XVC
    I 02
    LM393 MDC
    		.685
    		Unpackaged DieN/A
    		-

    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 LM393.

    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 LM393 is located at RoHS Status.

    Design Tools
    TitleSizeDate
    Amplifiers Selection Guide software for Windows  

    CAD Symbols and Models
    Download LM393 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM393MSLM04404600353250011002356520
    LM393MXSLM04404600353250011002356520
    LM393NSLM04404600353250011002356520
    LM393TLSLM04404600353250011002356520
    LM393TLXSLM04404600353250011002356520

    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 LM393.

    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 LM393 is located at RoHS Status.

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LM393AH
    		NONE
    		NONE
    		08 Sep 1999
    LM393H
    		LM193AH
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009

    [Information as of 7-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation