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 MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application *click for larger image	Connection Diagram *click for larger image
Typical Performance click for larger image

Datasheets

Title		Size	Date	Other Language
	LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators	411 Kbytes	12-Aug-02	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-274: Application Note 274 CMOS A/D Converter Interfaces Easily with Many Microprocessors	73 Kbytes	3-Oct-02

More Application Notes

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

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Standard Pack Size
LM393M/NOPB LM393M RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 5279 AVNET-EM Worldwide 4348 DIGIKEY Worldwide 3063 FARNELL Europe and Asia 17773 FUTURE Worldwide 1100 NEWARK Americas 2003 RS COMPONENTS Worldwide 1642 TAYLOR Americas 44364	$0.28 each at 1K+ pcs	rail of 95
LM393MX/NOPB LM393MX RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty AITG Asia Pacific 1001 BRITESTONE South Korea 19004 DIGIKEY Worldwide 3876 FUTURE Worldwide 1100 KEIKONG Asia Pacific 17500 NEWARK Americas 671 TAYLOR Americas 57500 TECHMOSA Asia Pacific 17500	$0.28 each at 1K+ pcs	reel of 2500
LM393N/NOPB LM393N RoHS Status	MDIP	Full production Lead Time: 12 weeks	Distributor Region Qty ARROW Worldwide 2486 AVNET-EM Worldwide 12955 DIGIKEY Worldwide 1088 FARNELL Europe and Asia 10190 FUTURE Worldwide 1100 KEIKONG Asia Pacific 2000 NEWARK Americas 1162 ROCELEC Americas 41 RS COMPONENTS Worldwide 2147 TAYLOR Americas 36105	$0.32 each at 1K+ pcs	rail of 40
LM393TL/NOPB RoHS Status	MICRO SMD	Full production Lead Time: 12 weeks	Distributor Region Qty ARROW Worldwide 2000 DIGIKEY Worldwide 0 FUTURE Worldwide 50	$0.32 each at 1K+ pcs	reel of 250
LM393 MDC RoHS Status		Full production Lead Time: 6 weeks	Contact your distributor	CALL	tray of N/A

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last 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/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

Part Number(s) (NSID)	Top View	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM393M/NOPB LM393M		SOIC NARROW	8	1 1	260 235	Detail	Download	N/A	NSZXTT LM 393M
LM393MX/NOPB LM393MX		SOIC NARROW	8	1 1	260 235	Detail	Download	N/A	NSZXTT LM 393M
LM393N/NOPB LM393N		MDIP	8	1 1	NA NA	Detail	Download	N/A	NSUZXYTTE# LM 393N
LM393TL/NOPB		MICRO SMD	8	1	260	Detail	Download	N/A	XVC I 02
LM393 MDC		Unpackaged Die				N/A	-

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

Design Tools

Title	Size	Date
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)
LM393M	SLM	0	44046	0	0	3532500	1	1002356520
LM393MX	SLM	0	44046	0	0	3532500	1	1002356520
LM393N	SLM	0	44046	0	0	3532500	1	1002356520
LM393TL	SLM	0	44046	0	0	3532500	1	1002356520

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/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM393AH	NONE	NONE	08 Sep 1999
LM393H	LM193AH	NATIONAL SEMICONDUCTOR	01 Dec 2009