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OPA445AU/2K5 - Texas Instruments

Description: Operational Amplifiers - Op Amps Hi Voltage FET-Input Op Amp

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OPA445AU/2K5 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A  SOIC
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OPA445AU/2K5 - Texas Instruments  - 3D model - Small Outline Packages - D0008A  SOIC
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OPA445AU/2K5 Details

  • Manufacturer Part Number:

    OPA445AU/2K5

  • 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):

    0.02 µA

  • Bias Current-Max (IIB) @25C:

    0.00005 µA

  • Common-mode Reject Ratio-Min:

    80 dB

  • Common-mode Reject Ratio-Nom:

    95 dB

  • Frequency Compensation:

    YES

  • Input Offset Current-Max (IIO):

    0.01 µA

  • Input Offset Voltage-Max:

    3000 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:

    -50 V

  • Neg Supply Voltage-Nom (Vsup):

    -40 V

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power:

    NO

  • Programmable Power:

    NO

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Slew Rate-Min:

    5 V/us

  • Slew Rate-Nom:

    15 V/us

  • Subcategory:

    Operational Amplifier

  • Supply Current-Max:

    4.7 mA

  • Supply Voltage Limit-Max:

    50 V

  • Supply Voltage-Nom (Vsup):

    40 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    MILITARY

  • 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:

    2000

  • Voltage Gain-Min:

    71000

  • Wideband:

    NO

  • Width:

    3.9 mm

OPA445AU/2K5 Frequently Asked Questions (FAQs)

  • A good PCB layout for the OPA445AU involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing decoupling capacitors close to the device. A 4-layer PCB with a dedicated ground plane is recommended.
  • The choice of gain resistors depends on the desired gain, bandwidth, and noise requirements. A good starting point is to use the gain resistor calculator tool provided by Texas Instruments or to consult the application notes for guidance.
  • The maximum power dissipation of the OPA445AU is 670mW. However, this can be limited by the thermal resistance of the package and the ambient temperature. It's essential to ensure proper heat sinking and thermal management to prevent overheating.
  • Yes, the OPA445AU can be used as a unity-gain buffer. However, it's essential to ensure that the input impedance is matched to the source impedance to prevent signal attenuation. A buffer configuration can also help to improve the output impedance and reduce distortion.
  • To minimize EMI, use a shielded enclosure, keep the PCB layout compact, and use a common-mode choke or ferrite bead on the input and output lines. Additionally, ensure that the device is properly decoupled and that the power supply is well-regulated.

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OPA445AU/2K5 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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