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LM7121IM - Texas Instruments

Description: 175 MHz Low Power Voltage Feedback Amplifier

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LM7121IM - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A
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LM7121IM Details

  • Manufacturer Part Number:

    LM7121IM

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    0.150 INCH, SOP-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Date Of Intro:

    1995-10-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Average Bias Current-Max (IIB):

    12 µA

  • Bandwidth (3dB)-Nom:

    50 MHz

  • Bias Current-Max (IIB) @25C:

    9.5 µA

  • Common-mode Reject Ratio-Min:

    73 dB

  • Common-mode Reject Ratio-Nom:

    93 dB

  • Frequency Compensation:

    YES

  • Input Offset Current-Max (IIO):

    4.3 µA

  • Input Offset Voltage-Max:

    8000 µV

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e0

  • Length:

    4.9 mm

  • Low-Bias:

    NO

  • 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:

    1

  • 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):

    235

  • Power:

    NO

  • Programmable Power:

    NO

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Slew Rate-Nom:

    1300 V/us

  • Subcategory:

    Operational Amplifier

  • Supply Current-Max:

    6.6 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    NOT SPECIFIED

  • Unity Gain BW-Nom:

    235000

  • Voltage Gain-Min:

    710

  • Wideband:

    YES

  • Width:

    3.9 mm

LM7121IM Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the application note SLVAE04, which includes guidelines for component placement, routing, and grounding to minimize noise and ensure optimal performance.
  • The value of Cc depends on the output capacitor (Co) and the desired phase margin. A general guideline is to choose Cc = Co / 10. However, it's recommended to consult the application note SLVAE04 for more detailed guidance on compensation capacitor selection.
  • The maximum allowed input voltage for the LM7121IM is 15V. Exceeding this voltage can reduce the device's reliability and lifespan. It's essential to ensure that the input voltage remains within the recommended operating range to maintain the device's performance and reliability.
  • During startup, the LM7121IM has a soft-start feature that limits the inrush current. However, it's essential to ensure that the input voltage rises monotonically and that the output capacitor is fully discharged before applying power. Consult the datasheet and application notes for more information on power-up sequencing and startup considerations.
  • The LM7121IM has a maximum junction temperature (Tj) of 150°C. To ensure proper heat dissipation, it's essential to provide adequate thermal conduction paths, such as thermal vias and heat sinks, and to follow the recommended PCB layout guidelines. Consult the datasheet and application notes for more information on thermal considerations and heat dissipation.

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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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Part Image LM7121IMX Texas Instruments

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