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LM311DT - STMicroelectronics

Description: Voltage comparator with strobe

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LM311DT Details

  • Manufacturer Part Number:

    LM311DT

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    ROHS COMPLIANT, MICRO, PLASTIC, SOP-8

  • Pin Count:

    8

  • Reach Compliance Code:

    Compliant

  • Country Of Origin:

    Morocco

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    8 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    5.65

  • Amplifier Type:

    COMPARATOR

  • Average Bias Current-Max (IIB):

    0.3 µA

  • Bias Current-Max (IIB) @25C:

    0.25 µA

  • Input Offset Voltage-Max:

    10000 µV

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 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:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR; TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Response Time-Nom:

    200 ns

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    7.5 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    3.9 mm

LM311DT 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 (VCC - 2V to VCC + 0.3V) to ensure proper operation.
  • To prevent oscillation, add a small capacitor (e.g., 10nF) between the output and ground, and a pull-up resistor (e.g., 1kΩ) between the output and VCC. This helps to filter out noise and ensure a stable output.
  • The LM311DT can detect input voltage differences as small as 1mV, but for reliable operation, it's recommended to have at least 5mV to 10mV of input voltage difference.
  • Yes, the LM311DT can be used as a zero-crossing detector. However, it's essential to ensure the input signal is properly biased and the comparator is configured for a valid output. A small hysteresis (e.g., 1mV) can help prevent oscillations.
  • The pull-up resistor value depends on the load current and the desired output voltage. A general rule of thumb is to choose a value between 1kΩ and 10kΩ. For example, if the load current is 1mA, a 1kΩ pull-up resistor would be suitable.

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LM311DT Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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