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LM331AN - Texas Instruments

Description: TEXAS INSTRUMENTS - LM331AN - Voltage to Frequency Converter, 10 kHz, 1Hz to 100kHz, 0.01 %, 4V to 40V, DIP, 8 Pins

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LM331AN - Texas Instruments - PCB symbol
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PCB Footprints
LM331AN - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - P(R-PDIP-T8) HEIGHT=5.08
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3D Models
LM331AN - Texas Instruments - 3D model - Dual-In-Line Packages - P(R-PDIP-T8) HEIGHT=5.08
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LM331AN Details

  • Manufacturer Part Number:

    LM331AN

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    PLASTIC, DIP-8

  • Pin Count:

    8

  • HTS Code:

    8542.39.00.50

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Converter Type:

    VOLTAGE TO FREQUENCY CONVERTER

  • JESD-30 Code:

    R-PDIP-T8

  • JESD-609 Code:

    e0

  • Length:

    9.817 mm

  • Linearity Error-Max (EL):

    0.02%

  • Moisture Sensitivity Level:

    1

  • Negative Input Voltage-Max:

    -0.2 V

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Frequency-Max:

    0.1 MHz

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP8,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Positive Input Voltage-Max:

    3 V

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Supply Current-Max:

    8 mA

  • Supply Voltage-Max:

    40 V

  • Supply Voltage-Min:

    4 V

  • Supply Voltage-Nom:

    5 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

LM331AN Frequently Asked Questions (FAQs)

  • Texas Instruments recommends using a 0.1 μF ceramic capacitor and a 10 μF tantalum capacitor in parallel, placed as close as possible to the VCC pin, to ensure stable operation and minimize noise.
  • To ensure accurate frequency output, it's essential to use a high-quality, low-impedance voltage source, and to minimize noise and interference on the input voltage. Additionally, the output frequency can be calibrated by adjusting the R1 and R2 resistors in the oscillator circuit.
  • The LM331AN can operate with input voltages up to 30V, but the recommended maximum input voltage is 24V to ensure reliable operation and minimize the risk of damage.
  • Yes, the LM331AN can be used with a single power supply, but it requires a voltage divider or other level-shifting circuit to generate the required negative voltage for the oscillator circuit.
  • The LM331AN's output frequency can be easily interfaced with a microcontroller or digital circuit using a frequency counter or timer input. Alternatively, the output can be converted to a digital signal using a comparator or Schmitt trigger circuit.

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LM331AN Overview

Use the download button to access the LM331AN schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like LM331, or try a keyword search, such as Analog Special Function Converters

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 LM231AN Texas Instruments

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Part Image LM231AN/NOPB National Semiconductor Corporation

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Part Image LM331AN National Semiconductor Corporation

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Part Image LM331AN/A+ National Semiconductor Corporation

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For a full list of alternate parts for LM331AN, check out Findchips.com