Features (TA = 25°C. Typical values unless otherwise specified). 5-Pin SOT23 package   Industrial operating range -40°C to +85°C Single or dual power supplies   Wide supply voltage range 5V to 30V Low supply current 300µA Low input bias current 7nA Low input offset current ±1nA Low input offset voltage ±2mV Response time 440ns (50mV overdrive) Input common mode voltage 0 to VS - 1.5V Description The LM397 is a single voltage comparator with an input common mode that includes ground. The LM397 is designed to operate from a single 5V to 30V power supply or a split power supply. Its low supply current is virtually independent of the magnitude of the supply voltage. The LM397 features an open collector output stage. This allows the connection of an external resistor at the output. The output can directly interface with TTL, CMOS and other logic levels, by tying the resistor to different voltage levels (level translator). The LM397 is available in space saving 5-Pin SOT23 package and pin compatible to TI's TL331, single differential comparator. Applications • A/D converters • Pulse, square wave generators • Peak detector • Industrial applications

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

Title		Size	Date	Other Language
	LM397 Single General Purpose Voltage Comparator	604 Kbytes	10-Aug-06

Featured Application Notes

Title		Size	Date	Other Language
	AN-181: Application Note 181 3-Terminal Regulator Is Adjustable	165 Kbytes	1-May-04
	AN-161: Application Note 161 IC Voltage Reference has 1 ppm per Degree Drift	138 Kbytes	10-Oct-02
	AN-293: Application Note 293 Control Applications of CMOS DACs	385 Kbytes	4-Oct-04
	AN-262: Application Note 262 Applying Dual and Quad FET Op Amps	416 Kbytes	2-Oct-02
	AN-460: Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors	306 Kbytes	20-Sep-02	日本語

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-274: Application Note 274 CMOS A/D Converter Interfaces Easily with Many Microprocessors	73 Kbytes	3-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

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM397MF	LB300	0	33664	0	0	3830500	1	1086914834
LM397MFX	LB300	0	33664	0	0	3830500	1	1086914834

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.

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