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OPA2131UJ - Texas Instruments

Description: Texas Instruments OPA2131UJ, Dual Op Amp, 4MHz, 8-Pin SOIC

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PCB Footprints
OPA2131UJ - Texas Instruments PCB footprint - Other - Other - SOIC127P600X175-8N
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OPA2131UJ - Texas Instruments  - 3D model - Other - SOIC127P600X175-8N
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OPA2131UJ Details

  • Manufacturer Part Number:

    OPA2131UJ

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    8

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Average Bias Current-Max (IIB):

    0.00005 µA

  • Bias Current-Max (IIB) @25C:

    0.00005 µA

  • Common-mode Reject Ratio-Min:

    70 dB

  • Common-mode Reject Ratio-Nom:

    80 dB

  • Frequency Compensation:

    YES

  • Input Offset Current-Max (IIO):

    0.00005 µA

  • Input Offset Voltage-Max:

    1000 µV

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Low-Bias:

    YES

  • Low-Offset:

    NO

  • Micropower:

    NO

  • Moisture Sensitivity Level:

    3

  • Neg Supply Voltage Limit-Max:

    -18 V

  • Neg Supply Voltage-Nom (Vsup):

    -15 V

  • Number of Functions:

    2

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Power:

    NO

  • Programmable Power:

    NO

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Slew Rate-Nom:

    10 V/us

  • Subcategory:

    Operational Amplifier

  • Supply Current-Max:

    3.5 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Unity Gain BW-Nom:

    4000

  • Voltage Gain-Min:

    50100

  • Wideband:

    NO

  • Width:

    3.9 mm

OPA2131UJ Frequently Asked Questions (FAQs)

  • The maximum power dissipation of the OPA2131UJ is 670mW, which is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (θJA) of 125°C/W.
  • To ensure stability in a unity-gain configuration, add a 10nF to 22nF capacitor in parallel with a 1kΩ to 2kΩ resistor between the output and the inverting input. This helps to compensate for the op-amp's phase shift and prevent oscillations.
  • Use a star-grounding technique, where the analog and digital grounds are separated and connected at a single point. Keep the input and output traces short and away from noise sources. Use a ground plane to reduce electromagnetic interference (EMI).
  • While the OPA2131UJ can be used as a comparator, it's not the best choice due to its relatively slow slew rate (2.5V/μs) and limited output current (±30mA). A dedicated comparator like the LM339 or TLC393 would be a better option.
  • Use input voltage limiting resistors (e.g., 1kΩ to 10kΩ) in series with the input signal to limit the voltage to the op-amp's maximum rating (±15V). You can also add input clamping diodes (e.g., 1N4148) to protect against overvoltage conditions.

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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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