LM393 - Low Power Low Offset Voltage Dual Comparator

Datasheet Packaging Samples & Pricing Reliability Design Tools Application Notes Knowledge Base

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

  

General 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. More...


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
  Typical Application
*click for larger image


Parametric Table     expand
Parametric Table    collapse
Response Time 0.4 us
Output Bus Open Drain
Supply Min 2 Volt
Supply Max 36 Volt
Channels 2 Channels
Offset Voltage max, 25C 5 mV
Output Current 16 mA
Input Range Vcm to V-
Supply Current Per Channel 0.2 mA
PowerWise Rating 3 80 uA x us
Response Time 0.4 us
Output Bus Open Drain
Supply Min 2 Volt
Supply Max 36 Volt
Channels 2 Channels
Offset Voltage max, 25C 5 mV
Output Current 16 mA
Input Range Vcm to V-
Supply Current Per Channel 0.2 mA
PowerWise Rating 3 80 uA x us
Max Input Bias Current 400 nA
Special Features Undefined
Temperature Min 0 deg C
Temperature Max 70 deg C
Function Comparator
AEC Q-100 Automotive Grade 0
View Using Catalog


Typical Performance

click for larger image


  Also Recommended
LMV762Improved Response Time
LMV393Lower Voltage

Additional Resources

Design Tools (see below)

Application Notes (see below)


Connection Diagram

*click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators 411 Kbytes 12-Aug-02 Download
LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators (Japanese)
 374 Kbytes   Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LM393MSOIC NARROW8STD
NOPB		1
1		235
260		RoHS Download Full productionN/A
Samples
Buy Now 		1K+$0.29rail
of
95		NSZXTT
LM
393M
6 weeks5000
LM393MXSOIC NARROW8STD
NOPB		1
1		235
260		RoHS Download Full productionN/A
 
Buy Now 		1K+$0.29reel
of
2500		NSZXTT
LM
393M
6 weeks7500
LM393NMDIP8STD
NOPB		1
1		NA
NA		RoHS Download Full productionN/A
Samples
Buy Now 		1K+$0.34rail
of
40		NSUZXYTT
LM
393N
6 weeks5000
LM393TLMICRO SMD8NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.30reel
of
250		XVC
I 02
12 weeks2000
LM393TLXMICRO SMD8NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.30reel
of
3000		XVC
I 02
6 weeks200000
LM393HTO-998NOPB1NARoHS Download Lifetime buyN/A
 1K+$3.67box
of
500		NSZXYTTE# LM393H
6 weeks1000
LM393 MDCUnpackaged DieFull productionN/A
  CALLtray
of
N/A		-
N/AN/A
LM393 MWCWaferLifetime buyN/A
  CALLwafer jar
of
N/A		-
N/A100000

Obsolete Versions

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

General 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.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM393MSLM0427860033525002951281028
LM393MXSLM0427860033525002951281028
LM393NSLM0427860033525002951281028
LM393TLSLM0427860033525002951281028
LM393TLXSLM0427860033525002951281028

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.


Design Tools

TitleSize in Kbytes Date Click link below to Download    
Amplifiers Selection Guide software for Windows 8 Kbytes 6-Mar-2007 View    

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-274: Application Note 274 CMOS A/D Converter Interfaces Easily with Many Microprocessors 73 Kbytes 3-Oct-02 Download

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More Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-184: Application Note 184 References for A/D Converters 64 Kbytes 3-Oct-02 Download
AN-184 (Japanese): Application Note 184 References for A/D Converters
 124 Kbytes   Download
AN-173: Application Note 173 IC Zener Eases Reference Design 54 Kbytes 1-Oct-02 Download
AN-460: Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors 306 Kbytes 20-Sep-02 Download
AN-460 (Japanese): Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors
 322 Kbytes   Download
AN-222: Application Note 222 Super Matched Bipolar Transistor Pair Sets New Standards for Drift and Noise 399 Kbytes 1-Oct-02 Download
AN-293: Application Note 293 Control Applications of CMOS DACs 385 Kbytes 4-Oct-04 Download
AN-286: Application Note 286 Applications of the LM392 Comparator Op Amp IC 135 Kbytes 2-Oct-02 Download
AN-263: Application Note 263 Sine Wave Generation Techniques 350 Kbytes 26-May-09 Download
AN-161: Application Note 161 IC Voltage Reference has 1 ppm per Degree Drift 138 Kbytes 10-Oct-02 Download
AN-181: Application Note 181 3-Terminal Regulator Is Adjustable 165 Kbytes 1-May-04 Download
AN-262: Application Note 262 Applying Dual and Quad FET Op Amps 416 Kbytes 2-Oct-02 Download
AN-311: Application Note 311 Theory and Applications of Logarithmic Amplifiers 258 Kbytes 2-Oct-02 Download
AN-299: Application Note 299 Audio Applications of Linear Integrated Circuits 232 Kbytes 24-Feb-99 Download
AN-265: Application Note 265 An Electronic Watt-Watt-Hour Meter 185 Kbytes 3-Oct-02 Download
AN-31: Application Note 31 Op Amp Circuit Collection 962 Kbytes 2-Oct-02 Download

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[Information as of 3-Jul-2009]