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  • The LM111, LM211, LM311 are voltage comparators that have low input currents.

    They are also designed to operate over a wide range of supply voltages: from standard ±15V operational amplifier 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 and can switch voltages up to +50V at output currents as high as 50mA.

    Key Features

    • Output current: 50mA
    • Maximum input current: 150nA
    • Differential input voltage range: ±30V
    • Maximum offset current: 20nA
    • Supply voltage: +5V to ±15V
    • Power consumption:135mW at ±15V

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Technical Documentation

    • Description Version Size Action
      DS1010
      Voltage comparators
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HW Model, CAD Libraries & SVD

    • Description Version Size Action
      LM211/LM311 PSpice model 2.0
      1.27 KB
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      ST library for all op amps and comparators SPICE models 4.0
      51.6 KB
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Presentations & Training Material

    • Description Version Size Action
      ST Analog Products for Automotive applications 11.2017
      2.05 MB
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      ST Analog Products for Automotive applications

Publications and Collaterals

    • Description Version Size Action
      ST Analog cards High-performance operational amplifiers and comparators, the best choice for longevity, robustness and performance. 1.0
      818.4 KB
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      ST Analog cards High-performance operational amplifiers and comparators, the best choice for longevity, robustness and performance.

    • Description Version Size Action
      Amplifiers & Comparators - Broaden Your Horizons 1.0
      2.55 MB
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      Operational Amplifiers (Op Amps) - Quick Reference Guide 2.0
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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LM311D
Active
SO-8 Industrial Ecopack3
LM311DT
Active
SO-8 Industrial Ecopack3

LM311D

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

LM311DT

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
LM311DT Available at 10 distributors

Distributor availability ofLM311DT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5601 1 Order Now
COMPEL EUROPE 38228 1 Order Now
RS COMPONENTS EUROPE 11575 1 Order Now
FUTURE WORLDWIDE 29670 1 Order Now
ARROW EUROPE 32500 0 Order Now
Newark Element14 AMERICA 260 0 Order Now
ARROW AMERICA 22996 1 Order Now
MOUSER WORLDWIDE 13358 1 Order Now
Farnell Element14 EUROPE 3288 1 Order Now
ANGLIA Live EUROPE 44430 10 Order Now

Distributor reported inventory date: 2020-09-22

Distributor Name

DIGIKEY

Stock

5601

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

38228

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

11575

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

29670

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

32500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

260

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

22996

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

13358

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3288

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

44430

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-22

Buy now
Active
EAR99 NEC Tape And Reel SO-8 0 70 MOROCCO 0.15 / 1k
LM311D Available at 6 distributors

Distributor availability ofLM311D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5166 1 Order Now
RS COMPONENTS EUROPE 2440 100 Order Now
AVNET AMERICA 6252 0 Order Now
ARROW EUROPE 47855 0 Order Now
MOUSER WORLDWIDE 6465 1 Order Now
ANGLIA Live EUROPE 9900 100 Order Now

Distributor reported inventory date: 2020-09-22

Distributor Name

DIGIKEY

Stock

5166

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2440

Min.Order

100

Region

EUROPE Order Now

AVNET

Stock

6252

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

47855

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6465

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

9900

Min.Order

100

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-22

Buy now
Active
EAR99 NEC Tube SO-8 0 70 MOROCCO 0.18 / 1k

LM311DT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.15 / 1k

Distributor availability ofLM311DT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5601 1 Order Now
COMPEL EUROPE 38228 1 Order Now
RS COMPONENTS EUROPE 11575 1 Order Now
FUTURE WORLDWIDE 29670 1 Order Now
ARROW EUROPE 32500 0 Order Now
Newark Element14 AMERICA 260 0 Order Now
ARROW AMERICA 22996 1 Order Now
MOUSER WORLDWIDE 13358 1 Order Now
Farnell Element14 EUROPE 3288 1 Order Now
ANGLIA Live EUROPE 44430 10 Order Now

Distributor reported inventory date: 2020-09-22

Distributor Name

DIGIKEY

Stock

5601

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

38228

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

11575

Min.Order

1

Region

EUROPE Order Now

FUTURE

Stock

29670

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

32500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

260

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

22996

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

13358

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3288

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

44430

Min.Order

10

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-22

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

0

(max)

70

Budgetary Price (US$)* / Qty

0.15 / 1k

Country of Origin

MOROCCO

LM311D

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.18 / 1k

Distributor availability ofLM311D

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5166 1 Order Now
RS COMPONENTS EUROPE 2440 100 Order Now
AVNET AMERICA 6252 0 Order Now
ARROW EUROPE 47855 0 Order Now
MOUSER WORLDWIDE 6465 1 Order Now
ANGLIA Live EUROPE 9900 100 Order Now

Distributor reported inventory date: 2020-09-22

Distributor Name

DIGIKEY

Stock

5166

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2440

Min.Order

100

Region

EUROPE Order Now

AVNET

Stock

6252

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

47855

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

6465

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

9900

Min.Order

100

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-22

ECCN (EU)

NEC

Packing Type

Tube

Package

SO-8

Operating Temperature (°C)

(min)

0

(max)

70

Budgetary Price (US$)* / Qty

0.18 / 1k

Country of Origin

MOROCCO

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors