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OPA2345UA - Texas Instruments

Description: Dual 3MHz, single-supply, rail-to-rail operational amplifiers MicroAmplifier™ series

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OPA2345UA Details

  • Manufacturer Part Number:

    OPA2345UA

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    End Of Life

  • Part Package Code:

    SOIC

  • Pin Count:

    8

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    1

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Average Bias Current-Max (IIB):

    0.00001 µA

  • Bias Current-Max (IIB) @25C:

    0.000001 µA

  • Common-mode Reject Ratio-Min:

    76 dB

  • Common-mode Reject Ratio-Nom:

    92 dB

  • Frequency Compensation:

    YES (AVCL>=5)

  • Input Offset Current-Max (IIO):

    0.00001 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:

    YES

  • Moisture Sensitivity Level:

    2

  • 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:

    2 V/us

  • Supply Current-Max:

    0.5 mA

  • Supply Voltage Limit-Max:

    7.5 V

  • Supply Voltage-Nom (Vsup):

    5.5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • 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:

    3000

  • Voltage Gain-Min:

    31600

  • Wideband:

    NO

  • Width:

    3.9 mm

OPA2345UA Frequently Asked Questions (FAQs)

  • The maximum power dissipation of the OPA2345UA 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, it's recommended to add a 10nF to 22nF capacitor in parallel with a 1kΩ to 2kΩ resistor between the output and the inverting input. This helps to reduce the phase margin and prevent oscillations.
  • To minimize noise and EMI, it's recommended to keep the input and output traces as short as possible, use a ground plane, and keep the power supply traces away from the signal traces. Additionally, use a decoupling capacitor (e.g., 0.1uF) between the power supply pins and the ground pin.
  • While the OPA2345UA can be used as a comparator, it's not the most suitable op-amp for this application. The OPA2345UA is designed for high-precision, low-noise applications, and its output stage is not optimized for high-speed switching. For comparator applications, a dedicated comparator IC like the LM339 or TLV7031 is recommended.
  • To handle ESD protection, it's recommended to use a TVS (Transient Voltage Suppressor) diode or a dedicated ESD protection IC, such as the TPD2E001, in parallel with the OPA2345UA's power supply pins. This helps to protect the op-amp from electrostatic discharge events.

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OPA2345UA 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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