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OPA121KU - Texas Instruments

Description: OP Amp Single GP 18V 8-Pin SOIC

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OPA121KU - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A
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OPA121KU - Texas Instruments  - 3D model - Small Outline Packages - D0008A
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OPA121KU Details

  • Manufacturer Part Number:

    OPA121KU

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Average Bias Current-Max (IIB):

    0.00001 µA

  • Bias Current-Max (IIB) @25C:

    0.00001 µA

  • Common-mode Reject Ratio-Min:

    82 dB

  • Common-mode Reject Ratio-Nom:

    100 dB

  • Frequency Compensation:

    YES

  • Input Offset Current-Max (IIO):

    0.0002 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:

    -18 V

  • Neg Supply Voltage-Nom (Vsup):

    -15 V

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °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:

    32 V/us

  • Supply Current-Max:

    5 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • 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:

    100000

  • Wideband:

    NO

  • Width:

    3.9 mm

OPA121KU Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a star-ground layout, with the op-amp's ground pin connected to a central ground point, and all other components connected to this point through short, direct traces. This helps to reduce noise and electromagnetic interference (EMI).
  • The feedback resistors should be chosen based on the desired gain and bandwidth of the amplifier. A good starting point is to use resistors with a value between 1 kΩ and 100 kΩ. The ratio of the resistors determines the gain, and the absolute values affect the bandwidth and noise performance.
  • The maximum power dissipation of the OPA121KU is 670 mW. To ensure it doesn't overheat, make sure to provide adequate heat sinking, such as a copper plane or a heat sink, and keep the ambient temperature below 85°C. Also, avoid high-power operation for extended periods.
  • Yes, the OPA121KU can be used as a unity-gain buffer. However, be aware that the input impedance of the op-amp is relatively low (around 30 kΩ), which may affect the source impedance of the signal being buffered. Also, ensure that the output is properly terminated to avoid oscillations.
  • Use proper ESD protection measures, such as wearing an ESD strap, using ESD-safe work surfaces, and storing the devices in ESD-safe packaging. Also, ensure that the PCB is designed with ESD protection in mind, such as using ESD diodes or resistors to protect the op-amp inputs.

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OPA121KU 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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