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LF347DT - STMicroelectronics

Description: STMicroelectronics LF347DT, Quad JFET Op Amp, 4MHz, 14-Pin SOIC

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LF347DT - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - 14 PINS - PLASTIC MICROPACKAGE (SO)
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LF347DT - STMicroelectronics  - 3D model - Small Outline Packages - 14 PINS - PLASTIC MICROPACKAGE (SO)
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LF347DT Details

  • Manufacturer Part Number:

    LF347DT

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    MICRO, PLASTIC, SO-14

  • Pin Count:

    14

  • Country Of Origin:

    Morocco

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Factory Lead Time:

    10 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    4.15

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Average Bias Current-Max (IIB):

    0.02 µA

  • Bias Current-Max (IIB) @25C:

    0.0002 µA

  • Common-mode Reject Ratio-Min:

    70 dB

  • Common-mode Reject Ratio-Nom:

    86 dB

  • Frequency Compensation:

    YES

  • Input Offset Current-Max (IIO):

    0.004 µA

  • Input Offset Voltage-Max:

    13000 µV

  • JESD-30 Code:

    R-PDSO-G14

  • JESD-609 Code:

    e4

  • Length:

    8.65 mm

  • Low-Bias:

    YES

  • Low-Offset:

    NO

  • Micropower:

    NO

  • Moisture Sensitivity Level:

    1

  • Neg Supply Voltage Limit-Max:

    -18 V

  • Neg Supply Voltage-Nom (Vsup):

    -15 V

  • Number of Functions:

    14

  • Number of Terminals:

    4

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP14,.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:

    12 V/us

  • Slew Rate-Nom:

    16 V/us

  • Supply Current-Max:

    10.8 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 (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:

    25000

  • Wideband:

    NO

  • Width:

    3.9 mm

LF347DT Frequently Asked Questions (FAQs)

  • The maximum power dissipation of the LF347DT is 670mW, which is calculated based on the maximum junction temperature (150°C) and the thermal resistance (125°C/W) of the package.
  • To ensure stability in a unity-gain buffer configuration, it's recommended to add a 10-22nF capacitor in parallel with a 1-2kΩ resistor between the output and the inverting input to prevent oscillations.
  • To minimize noise and EMI, it's recommended to keep the input and output traces short and away from each other, use a ground plane, and decouple the power supply with a 10uF capacitor and a 100nF capacitor in parallel.
  • While the LF347DT can be used as a comparator, it's not the most suitable op-amp for this application due to its relatively slow slew rate (13V/us) and limited bandwidth (4MHz). A dedicated comparator like the LM339 or LM2901 would be a better choice.
  • To protect the LF347DT from overvoltage and ESD, it's recommended to add a voltage clamp circuit (e.g., a zener diode and a resistor) and use ESD protection devices (e.g., TVS diodes) on the input and output pins.

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LF347DT Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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