LM311   
Voltage Comparator 		Click link to Download

Features
•Operates from single 5V supply
•Input current: 150 nA max. over temperature
•Offset current: 20 nA max. over temperature
•Differential input voltage range: ±30V
•Power consumption: 135 mW at ±15V

Description

The LM111, LM211 and LM311 are voltage comparators that have input currents nearly a thousand times lower than devices like the LM106 or LM710. They are also designed to operate over a wider range of supply voltages: from standard ±15V op amp supplies down to the single 5V supply used for IC logic. Their output is compatible with RTL, DTL and TTL as well as MOS circuits. Further, they can drive lamps or relays, switching voltages up to 50V at currents as high as 50 mA.

Both the inputs and the outputs of the LM111, LM211 or the LM311 can be isolated from system ground, and the output can drive loads referred to ground, the positive supply or the negative supply. Offset balancing and strobe capability are provided and outputs can be wire OR'ed. Although slower than the LM106 and LM710 (200 ns response time vs 40 ns) the devices are also much less prone to spurious oscillations. The LM111 has the same pin configuration as the LM106 and LM710.

The LM211 is identical to the LM111, except that its performance is specified over a -25°C to +85°C temperature range instead of -55°C to +125°C. The LM311 has a temperature range of 0°C to +70°C.
Also Recommended
LMH7220▲Faster Response Time, LVDS Output
LM6511▲Same Pinout, Much Higher Speed



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                                              LM311
Drag-Select for Table Reset Graph
Also Recommended
LMH7220▲Faster Response Time, LVDS Output
LM6511▲Same Pinout, Much Higher Speed

Typical Application
*click for larger image


Connection Diagram
*click for larger image



Typical Performance
*click for larger image


Paramaters / ValuesLM311 LMH7220 LM6511
Response Time0.1 us 0.0029 us 0.18 us
Output BusOpen Drain LVDS Open Drain
Supply Min5 Volt 2.7 Volt 2.7 Volt
Supply Max36 Volt 12 Volt 36 Volt
Channels1 Channels 1 Channels 1 Channels
Offset Voltage max, 25C7.5 mV 2.7 mV 5 mV
Output Current50 mA 5 mA 100 mA
Input RangeNot R-R Vcm to V- Not R-R
Supply Current Per Channel5.1 mA 7.5 mA 2.7 mA
PowerWise Rating 3510 uA x us 22 uA x us 486 uA x us
Max Input Bias Current300 nA 7000 nA 200 nA
Special FeaturesOffset Adjust, Strobe LVDS Out Offset Adjust, Strobe
Temperature Min0 deg C -40 deg C -40 deg C
Temperature Max70 deg C 125 deg C 85 deg C
FunctionComparator Comparator Comparator

Datasheets
TitleSizeDateOther
Language
LM111/LM211/LM311 Voltage Comparator1089
Kbytes		19-Nov-04 


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Part Number(s)
(NSID)		Top ViewAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LM311M/NOPB
LM311M

RoHS Status



SOIC NARROW		Full production
Lead Time: 12 weeks

Samples
DistributorRegionQty
ARROWWorldwide1829
AVNET-EMWorldwide1315
DIGIKEYWorldwide1287
FARNELLEurope and Asia11732
FUTUREWorldwide1100
NEWARKAmericas2793
RS COMPONENTSWorldwide732
TAYLORAmericas13926
$0.28 each at 1K+ pcsrail
of
95
LM311MX/NOPB
LM311MX

RoHS Status



SOIC NARROW		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide2500
AVNET-EMWorldwide7500
DIGIKEYWorldwide5909
FUTUREWorldwide1100
NEWARKAmericas2497
TAYLORAmericas22500
$0.28 each at 1K+ pcsreel
of
2500
LM311N/NOPB
LM311N

RoHS Status



MDIP		Full production
Lead Time: 12 weeks

 
DistributorRegionQty
ARROWWorldwide2051
AVNET-EMWorldwide108
BRITESTONESouth Korea28
DIGIKEYWorldwide598
FARNELLEurope and Asia11351
FUTUREWorldwide1100
KEIKONGAsia Pacific69000
NEWARKAmericas3374
RS COMPONENTSWorldwide2619
RSL MICROAsia Pacific64600
TAYLORAmericas33775
$0.33 each at 1K+ pcsrail
of
40
LM311H/NOPB
LM311H

RoHS Status



TO-99		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
ARROWWorldwide480
AVNET-EMWorldwide432
DIGIKEYWorldwide865
FARNELLEurope and Asia597
FUTUREWorldwide53
$3.97 each at 1K+ pcsbox
of
500

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 ViewTypePinsMSL RatingPeak ReflowRoHS
Status		CAD SymbolsModelsPackage
Marking
Format
LM311M/NOPB
LM311M
SOIC NARROW81
1		260
235		DetailDownloadN/A
NSZXTT
LM
311M
LM311MX/NOPB
LM311MX
SOIC NARROW81
1		260
235		DetailDownloadN/A
NSZXTT
LM
311M
LM311N/NOPB
LM311N
MDIP81
1		NA
NA		DetailDownloadN/A
NSUZXYTTE#
LM
311N
LM311H/NOPB
LM311H
TO-9981
1		NA
NA		DetailDownloadN/A
NSZXYTTE# LM311H

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
TitleSizeDate
Amplifiers Selection Guide software for Windows  

CAD Symbols and Models
Download LM311 CAD Symbols
 Models
N/A

Reliability Metrics
Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM311MSLM04404600353250011002356520
LM311MXSLM04404600353250011002356520
LM311NSLM04404600353250011002356520

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.

[Information as of 21-Mar-2010]