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LM311N - Texas Instruments

Description: Voltage Comparator

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LM311N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - P (R-PDIP-T8)_I
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LM311N - Texas Instruments  - 3D model - Dual-In-Line Packages - P (R-PDIP-T8)_I
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LM311N Details

  • Manufacturer Part Number:

    LM311N

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    PLASTIC, DIP-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Amplifier Type:

    COMPARATOR

  • Average Bias Current-Max (IIB):

    0.3 µA

  • Input Offset Voltage-Max:

    10000 µV

  • JESD-30 Code:

    R-PDIP-T8

  • JESD-609 Code:

    e0

  • Length:

    9.59 mm

  • Moisture Sensitivity Level:

    1

  • Neg Supply Voltage Limit-Max:

    -18 V

  • Neg Supply Voltage-Nom (Vsup):

    -15 V

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Output Type:

    OPEN-COLLECTOR

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP14,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Response Time-Nom:

    200 ns

  • Seated Height-Max:

    5.08 mm

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    TIN LEAD

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

LM311N Frequently Asked Questions (FAQs)

  • The maximum voltage that can be applied to the input pins is ±30V, but it's recommended to keep it within the supply voltage range to ensure proper operation.
  • To prevent oscillation, add a small capacitor (e.g., 10nF) between the output and ground, and a small resistor (e.g., 1kΩ) in series with the output. This forms a low-pass filter to reduce noise and oscillations.
  • The minimum input voltage difference required for a valid output is typically around 1-2mV, but this can vary depending on the specific application and noise conditions.
  • Yes, the LM311N can be used as a zero-crossing detector. Connect the input signal to the non-inverting input and a reference voltage (e.g., 0V) to the inverting input. The output will toggle when the input signal crosses the reference voltage.
  • To reduce power consumption, consider using a lower supply voltage (e.g., 5V instead of 15V), reducing the input impedance, or using a lower-power comparator like the TLV7031.

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LM311N Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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Part Image LM311JG Texas Instruments

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Part Image LM311N-N Texas Instruments

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Part Image KA311 Samsung Semiconductor

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For a full list of alternate parts for LM311N, check out Findchips.com