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
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 View Online Click link below to Download Click link below to Receive via Email
LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators 411 Kbytes 12-Aug-02 View Online Download Receive via Email
LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators (Japanese)
 374 Kbytes   View Online Download Receive via Email

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


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+$0.27rail
of
95		NSZXTT
LM
393M
6 weeks3000
LM393MXSOIC NARROW8STD
NOPB		1
1		235
260		RoHS Download Full productionN/A
 
Buy Now 		1K+$0.27reel
of
2500		NSZXTT
LM
393M
6 weeks7500
LM393NMDIP8STD
NOPB		1
1		NA
NA		RoHS Download Full productionN/A
Samples
Buy Now 		1K+$0.29rail
of
40		NSUZXYTT
LM
393N
8 weeks7500
LM393TLMICRO SMD8NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.28reel
of
250		XVC
I 02
12 weeks2000
LM393TLXMICRO SMD8NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.28reel
of
3000		XVC
I 02
6 weeks5000
LM393HTO-998NOPB1NARoHS Download Full productionN/A
 1K+$3.10box
of
500		NSZXYTTE# LM393H
6 weeks1000
LM393 MDCUnpackaged DieFull productionN/A
  CALLtray
of
N/A		-
N/AN/A
LM393 MWCWaferFull productionN/A
  CALLwafer jar
of
N/A		-
N/AN/A

Obsolete Parts

Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM393AH
LM2903
NSC
09/08/99
LM393AJ
LM393N
NATIONAL SEMICONDUCTOR
12/07/93
LM393J
LM393N
NATIONAL SEMICONDUCTOR
12/07/93

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 Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM393MSLM0395460028575002810823427
LM393MXSLM0395460028575002810823427
LM393NSLM0395460028575002810823427
LM393TLSLM0395460028575002810823427
LM393TLXSLM0395460028575002810823427

For more information on Reliability Metrics, please click here.


Design Tools

TitleSize in Kbytes Date Click link below to View Online Click link below to Download Click link below to Receive via Email
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 View Online Click link below to Download Click link below to Receive via Email
AN-274: Application Note 274 CMOS A/D Converter Interfaces Easily with Many Microprocessors 98 Kbytes 3-Oct-02 View Online Download Receive via Email

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

[Information as of 29-Aug-2008]