LM311 - Voltage Comparator

Datasheet Packaging Samples & Pricing Reliability Design Tools Application Notes Knowledge Base

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

General 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. More...


  Typical Application
*click for larger image


Parametric Table     expand
Parametric Table    collapse
Response Time 0.1 us
Output Bus Open Drain
Supply Min 5 Volt
Supply Max 36 Volt
Channels 1 Channels
Offset Voltage max, 25C 7.5 mV
Output Current 50 mA
Input Range Not R-R
Supply Current Per Channel 5.1 mA
PowerWise Rating 3 510 uA x us
Response Time 0.1 us
Output Bus Open Drain
Supply Min 5 Volt
Supply Max 36 Volt
Channels 1 Channels
Offset Voltage max, 25C 7.5 mV
Output Current 50 mA
Input Range Not R-R
Supply Current Per Channel 5.1 mA
PowerWise Rating 3 510 uA x us
Max Input Bias Current 300 nA
Special Features Offset Adjust, Strobe
Temperature Min 0 deg C
Temperature Max 70 deg C
Function Comparator
View Using Catalog


Typical Performance


*click for larger image


  Also Recommended
LMH7220Faster Response Time, LVDS Output
LM6511Same Pinout, Much Higher Speed

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
LM111/LM211/LM311 Voltage Comparator 1089 Kbytes 19-Nov-04 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
LM311MSOIC NARROW8STD
NOPB
1
1
235
260
RoHS Download Full productionN/A
Samples
Buy Now
1K+$0.22rail
of
95
NSZXTT
LM
311M
8 weeks2500
LM311MXSOIC NARROW8STD
NOPB
1
1
235
260
RoHS Download Full productionN/A
 
Buy Now
1K+$0.22reel
of
2500
NSZXTT
LM
311M
8 weeks7500
LM311NMDIP8STD
NOPB
1
1
NA
NA
RoHS Download Full productionN/A
 
Buy Now
1K+$0.25rail
of
40
NSUZXYTT
LM
311N
8 weeks5000
LM311HTO-998STD
NOPB
1
1
NA
NA
RoHS Download Full productionN/A
 
Buy Now
1K+$3.30box
of
500
NSZXYTTE# LM311H
6 weeks1000
LM311 MDAUnpackaged DieFull productionN/A
  CALLtray
of
N/A
-
N/AN/A
LM311 MWAWaferLifetime buyN/A
  CALLwafer jar
of
N/A
-
N/AN/A

Obsolete Parts

Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM311J
LM311N
NATIONAL SEMICONDUCTOR
12/07/93
LM311J-8
LM311N
NATIONAL SEMICONDUCTOR
04/04/95
LM311N-14
NONE
NATIONAL SEMICONDUCTOR
12/07/93

General 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.

Reliability Metrics


Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM311MSLM0395460028575002810823427
LM311MXSLM0395460028575002810823427
LM311NSLM0395460028575002810823427

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-103: Application Note 103 LM340 Series Three Terminal Positive Regulators 421 Kbytes 3-Oct-02 View Online Download Receive via Email
AN-263: Application Note 263 Sine Wave Generation Techniques 402 Kbytes 2-Oct-02 View Online Download Receive via Email
AN-307: Application Note 307 Introducing the MF10: A Versatile Monolithic Active Filter Building Block 384 Kbytes 10-Oct-02 View Online Download Receive via Email
AN-307 (Japanese): Application Note 307 Introducing the MF10: A Versatile Monolithic Active Filter Building Block
402 Kbytes   View Online Download Receive via Email
AN-294: Special Sample and Hold Techniques 133 Kbytes 4-Nov-95 View Online Download Receive via Email
AN-288: Application Note 288 System-Oriented DC-DC Conversion Techniques 494 Kbytes 3-Oct-02 View Online Download Receive via Email
AN-298: Application Note 298 Isolation Techniques for Signal Conditioning 455 Kbytes 2-Oct-02 View Online Download Receive via Email
AN-260: Application Note 260 A 20-Bit (1 ppm) Linear Slope-Integrating A/D Converter 291 Kbytes 3-Oct-02 View Online Download Receive via Email
AN-301: Application Note 301 Signal Conditioning for Sophisticated Transducers 579 Kbytes 2-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]