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INA121U/2K5G4 - Texas Instruments

Description: Instrumentation Amplifiers FET-Input Low Power Instrumentation Amp

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INA121U/2K5G4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A
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INA121U/2K5G4 - Texas Instruments  - 3D model - Small Outline Packages - D0008A
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INA121U/2K5G4 Details

  • Manufacturer Part Number:

    INA121U/2K5G4

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    GREEN, SOIC-8

  • Pin Count:

    8

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Amplifier Type:

    INSTRUMENTATION AMPLIFIER

  • Average Bias Current-Max (IIB):

    0.00005 µA

  • Bandwidth (3dB)-Nom:

    0.6 MHz

  • Bias Current-Max (IIB) @25C:

    0.00005 µA

  • Common-mode Reject Ratio-Min:

    106 dB

  • Input Offset Current-Max (IIO):

    5e-7 µA

  • Input Offset Voltage-Max:

    500 µV

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    3

  • Neg Supply Voltage Limit-Max:

    -18 V

  • Neg Supply Voltage-Nom (Vsup):

    -15 V

  • Non-linearity-Max:

    0.002%

  • 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:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Slew Rate-Nom:

    0.7 V/us

  • Subcategory:

    Instrumentation Amplifier

  • Supply Current-Max:

    0.525 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • 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):

    NOT SPECIFIED

  • Voltage Gain-Max:

    10000

  • Voltage Gain-Min:

    1

  • Voltage Gain-Nom:

    10

  • Width:

    3.9 mm

INA121U/2K5G4 Frequently Asked Questions (FAQs)

  • The INA121U can handle input voltages up to ±650mV, but it's recommended to keep the input voltage within ±500mV to ensure accurate measurements.
  • The gain resistor (Rg) should be chosen based on the desired gain and the input voltage range. A smaller Rg value results in higher gain, but may also increase noise. A larger Rg value results in lower gain, but may reduce noise. Consult the datasheet for a gain resistor selection table.
  • The REF pin is a reference voltage input that allows the INA121U to provide a ratiometric output. Connect the REF pin to a stable voltage reference (e.g., a voltage regulator output) to improve the amplifier's accuracy and reduce temperature drift.
  • Keep the input traces short and away from noise sources. Use a ground plane and decouple the power supply with capacitors. Place the INA121U close to the input signal source and use a shielded cable or twisted pair for the input signal. Consult the datasheet for more layout guidelines.
  • The INA121U typically consumes around 400μA of current from the power supply. However, this value may vary depending on the specific application and operating conditions.

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INA121U/2K5G4 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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