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OPA2251UA - Texas Instruments

Description: Dual, 15V single-supply, micro power operational amplifiers

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OPA2251UA - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - +soic d
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OPA2251UA Details

  • Manufacturer Part Number:

    OPA2251UA

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Pin Count:

    8

  • Country Of Origin:

    Malaysia

  • 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):

    0.025 µA

  • Bias Current-Max (IIB) @25C:

    0.02 µA

  • Common-mode Reject Ratio-Min:

    100 dB

  • Common-mode Reject Ratio-Nom:

    124 dB

  • Frequency Compensation:

    YES

  • Input Offset Current-Max (IIO):

    0.002 µA

  • Input Offset Voltage-Max:

    250 µV

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Low-Bias:

    NO

  • Low-Offset:

    YES

  • Micropower:

    YES

  • 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:

    0.01 V/us

  • Supply Current-Max:

    0.076 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:

    35

  • Voltage Gain-Min:

    100000

  • Wideband:

    NO

  • Width:

    3.9 mm

OPA2251UA Frequently Asked Questions (FAQs)

  • To minimize noise and ensure optimal performance, it is recommended to place the OPA2251UA close to the signal source, use a ground plane, and keep the input and output traces short and away from each other. Additionally, decoupling capacitors should be placed close to the power pins.
  • The OPA2251UA has a high input bias current, which can cause voltage drops across the input resistors. To handle this, use high-impedance input resistors, consider using a voltage follower or a buffer stage, and ensure that the input signal can drive the required current.
  • The OPA2251UA has a maximum junction temperature of 150°C. Ensure reliable operation by providing adequate heat sinking, using a thermally conductive package, and avoiding high-power dissipation. Also, consider the thermal resistance of the package and the PCB.
  • Select gain resistors that balance noise and distortion performance. Use low-noise, high-precision resistors with a low temperature coefficient. Consider the resistor's voltage coefficient and thermal noise contribution to optimize the design.
  • To ensure electromagnetic compatibility, use proper shielding, grounding, and filtering techniques. Keep the OPA2251UA away from high-frequency sources, use a Faraday shield, and consider using a common-mode choke or ferrite beads to filter out noise.

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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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