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LM139J/PB - Texas Instruments

Description: Low Power Low Offset Voltage Quad Comparator

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LM139J/PB - Texas Instruments PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - J0014A
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LM139J/PB Details

  • Manufacturer Part Number:

    LM139J/PB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    14

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    1988-04-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Amplifier Type:

    COMPARATOR

  • Average Bias Current-Max (IIB):

    0.3 µA

  • Bias Current-Max (IIB) @25C:

    0.3 µA

  • Input Offset Voltage-Max:

    5000 µV

  • JESD-30 Code:

    R-GDIP-T14

  • JESD-609 Code:

    e0

  • Length:

    19.56 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    4

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Output Type:

    OPEN-COLLECTOR; OPEN-DRAIN

  • Package Body Material:

    CERAMIC, GLASS-SEALED

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP14,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    RAIL

  • Qualification Status:

    Not Qualified

  • Response Time-Nom:

    1300 ns

  • Seated Height-Max:

    5.08 mm

  • Subcategory:

    Comparator

  • Supply Current-Max:

    2 mA

  • Supply Voltage Limit-Max:

    36 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

LM139J/PB Frequently Asked Questions (FAQs)

  • The maximum voltage that can be applied to the input pins is the supply voltage (VCC) + 0.3V. Exceeding this voltage can cause damage to the device.
  • To prevent oscillation, ensure that the input signals are properly filtered and that the comparator is properly biased. Additionally, adding a small capacitor (e.g. 10nF) between the output and ground can help to reduce oscillations.
  • The minimum input voltage required for the comparator to function correctly is 1.5V. Operating the comparator below this voltage may result in incorrect output states.
  • No, the LM139J/PB is a comparator, not an amplifier. It is designed to compare two input voltages and output a digital signal indicating which input is higher. It is not suitable for amplifying signals.
  • The pull-up resistor value depends on the load current required and the output voltage. A general rule of thumb is to choose a resistor value that limits the output current to 1-2mA. For example, if the output voltage is 5V, a 2.2kΩ resistor would limit the output current to approximately 2mA.

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LM139J/PB 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 7700801CA Fairchild Semiconductor Corporation

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Part Image PM139Y Rochester Electronics LLC

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For a full list of alternate parts for LM139J/PB, check out Findchips.com