LM311M The Texas Instruments LM311M is a general-purpose voltage comparator designed for high voltage applications. It comes in an 8-SOIC package and operates within a 0°C to 70°C temperature range.
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LM311M

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM311M is a general-purpose voltage comparator designed for high voltage applications. It comes in an 8-SOIC package and operates within a 0°C to 70°C temperature range.
Total Stock: 122,991 pcs
$ Price Range: $0.64

LM311M Available from 4 distributors

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LM311M Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Mounting Type
Number of Elements
Operating Temperature
Output Type
Power Consumption
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Type
Voltage

LM311M Description

Short technical summary and product information.

The LM311M from Texas Instruments is a precision, high voltage, floating output comparator. It is designed to operate from standard ±15V op-amp supplies down to a single 5V supply used for IC logic. Its output is compatible with RTL, DTL, and TTL as well as MOS circuits.

 

Key electrical characteristics include input currents nearly a thousand times lower than older devices, with a maximum input current of 150 nA over temperature and an offset current of 20 nA over temperature. The differential input voltage range is ±30V. Power consumption is rated at 135 mW at ±15V.

 

This comparator features an open-collector, open-emitter output type and is housed in an 8-SOIC package suitable for surface mounting. The operating temperature range is from 0°C to 70°C. While the LM311M is obsolete, its design principles and specifications are foundational for understanding comparator technology.

 

Applications for this type of comparator include driving lamps or relays, switching voltages up to 50V at currents as high as 50 mA. Both inputs and outputs 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.

LM311M Quick Information

Product Type: Comparator
Canonical Name: LM311M Precision High Voltage Floating Output Comparator
Subcategory: General Purpose

LM311M Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM311M Estimated Pricing

Qty Low High
1+ $0.64 $0.64

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM311M Features

  • Precision high voltage floating output comparator.
  • Low input currents: 150 nA max over temperature.
  • Wide differential input voltage range: ±30V.
  • Drives loads up to 50V at 50 mA.
  • Surface mount 8-SOIC package.

LM311M Applications

  • Suitable for driving lamps and relays.
  • Can switch voltages up to 50V.
  • Compatible with RTL, DTL, and TTL logic.
  • Outputs can be isolated from system ground.

LM311M FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the LM311M?

The LM311M operates from 0°C to 70°C.

What type of package is the LM311M supplied in?

The LM311M is supplied in an 8-SOIC package.

What is the RoHS status of the LM311M?

The LM311M is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the LM311M?

The MSL for the LM311M is 1 Unlimited.

What is the differential input voltage range for the LM311M comparator?

The LM311M has a differential input voltage range of ±30V.

What is the maximum input current for the LM311M over temperature?

The maximum input current for the LM311M over temperature is 150 nA.

Can the LM311M drive relays or lamps?

Yes, the LM311M can drive lamps or relays, switching voltages up to 50V at currents as high as 50 mA.

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