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LM311DR The LM311DR is a single, high-speed voltage comparator from Texas Instruments. It operates from a wide range of supply voltages and features open-collector outputs.
Mfr Part #:

LM311DR

Available from 6 distributors
Mfr Name: Texas Instruments
Texas Instruments
The LM311DR is a single, high-speed voltage comparator from Texas Instruments. It operates from a wide range of supply voltages and features open-collector outputs.
✓ Total Stock: 398,905 pcs
$ Price Range: $0.07

LM311DR Available from 6 distributors

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DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

LM311DR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Mounting Type
Number of Channels
Number of Elements
Operating Temperature
Output Type
Propagation Delay
Quiescent Current
Response Time
Supplier Device Package
Type
Voltage
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LM311DR Description

Short technical summary and product information.

The LM311DR is a versatile, high-speed differential comparator manufactured by Texas Instruments. Designed for general-purpose applications, it offers a fast response time of 165 ns and a propagation delay of 0.115 µs. This comparator can operate from supply voltages ranging from 3.5V to 30V.

 

Key electrical characteristics include a typical quiescent current of 5.1 mA per channel and a maximum offset voltage of 7.5 mV at 25°C. The input bias current is a maximum of 250 nA, with a maximum input offset current of 70 nA. The common-mode input voltage range extends from 0.5V to 28V.

 

The LM311DR features an open-collector output type, compatible with MOS, Open-Collector, Open-Emitter, and TTL logic. It is designed for surface mount installation in an 8-SOIC package. The operating temperature range is from 0°C to 70°C, making it suitable for various industrial applications.

 

This comparator is capable of driving lamps or relays and switching voltages up to 50V at 50mA. All inputs and outputs can be isolated from system ground, and the outputs can drive loads referenced to ground, VCC+, or VCC-. Offset balancing and strobe capabilities are available, and the outputs can be wire-OR connected.

LM311DR Quick Information

Product Type: Comparator
Canonical Name: LM311DR High Speed Differential Comparator
Subcategory: General Purpose

LM311DR Compliance

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

LM311DR Estimated Pricing

Qty Low High
1+ $0.07 $0.07

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

LM311DR Features

  • High-speed differential comparator.
  • Operates from 3.5V to 30V supply.
  • Fast 115ns propagation delay.
  • Open-collector output type.
  • Surface mount 8-SOIC package.

LM311DR Applications

  • Suitable for general purpose applications.
  • Can drive lamps or relays.
  • Compatible with TTL and MOS circuits.
  • Used in industrial environments.

LM311DR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the LM311DR?

The LM311DR operates from a supply voltage range of 3.5V to 30V.

What is the propagation delay of the LM311DR comparator?

The propagation delay time for the LM311DR is 0.115 µs.

What type of output does the LM311DR have?

The LM311DR has an open-collector, open-drain output type.

What is the operating temperature range for the LM311DR?

The LM311DR can operate in a temperature range of 0°C to 70°C.

What package is the LM311DR supplied in?

The LM311DR is supplied in an 8-SOIC package.

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