LM2903

Pinout






Specifications

Product	Product status	Eco Status	Pricing*	Package type	Leads	Packing method	Package Drawing	Package Marking Convention**
LM2903M	Full Production	RoHS Compliant	$0.156	SOIC	8	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &3 (3-Digit Date Code) Line 2: LM29 Line 3: 03M
LM2903MX	Full Production	RoHS Compliant	$0.148	SOIC	8	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &3 (3-Digit Date Code) Line 2: LM29 Line 3: 03M
LM2903N	Full Production	RoHS Compliant	$0.156	DIP	8	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &3 (3-Digit Date Code) Line 2: LM Line 3: 2903N

* Fairchild 1,000 piece Budgetary Pricing

** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples

Package marking information for product LM2903 is available. Click here for more information .

Response Time	0.4 us
Output Bus	Open Drain
Supply Min	2 Volt
Supply Max	36 Volt
Channels	2 Channels
Offset Voltage max, 25C	7 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	500 nA
Special Features	Undefined
Temperature Min	-40 deg C
Temperature Max	85 deg C
Function	Comparator
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Description

The LM2903 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

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Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM2903ITL	SLM	0	42786	0	0	3352500	2	951281028
LM2903ITLX	SLM	0	42786	0	0	3352500	2	951281028
LM2903M	SLM	0	42786	0	0	3352500	2	951281028
LM2903MX	SLM	0	42786	0	0	3352500	2	951281028
LM2903N	SLM	0	42786	0	0	3352500	2	951281028

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

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Title	Size in Kbytes	Date
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.

More Application Notes

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Title	Size in Kbytes	Date
AN-97: Application Note 97 Versatile Timer Operates from Microseconds to Hours	457 Kbytes	24-Feb-99	Download
AN-162: AN-162 LM2907 Tachometer/Speed Switch Building Block Applications	309 Kbytes	1-May-04	Download
AN-607: Pulse Width Modulation A/D Conversion Techniques with COP800 Family Microcontrollers	148 Kbytes	5-Aug-95	Download
AN-1237: Application Note 1237 RSDS™ Flat Panel Display Design Guidelines Part 2	141 Kbytes	14-May-03	Download

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

The LM393 series are dual independent precision voltage comparators capable of single or split supply operation. These devices are designed to permit a common mode rangetoground level with single supply operation.Input offset voltage specifications as low as 2.0 mV make this device an excellent selection for many applications in consumer automotive, and industrial electronics.