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INA128U - Texas Instruments

Description: Precision, 130-dB CMRR, 700-µA, Low-Power, Instrumentation Amplifier

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INA128U Details

  • Manufacturer Part Number:

    INA128U

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    8

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Amplifier Type:

    INSTRUMENTATION AMPLIFIER

  • Average Bias Current-Max (IIB):

    0.005 µA

  • Bandwidth (3dB)-Nom:

    1.3 MHz

  • Bias Current-Max (IIB) @25C:

    0.005 µA

  • Common-mode Reject Ratio-Min:

    120 dB

  • Input Offset Current-Max (IIO):

    0.005 µA

  • Input Offset Voltage-Max:

    50 µV

  • JESD-30 Code:

    R-PDSO-G8

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    2

  • 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:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Slew Rate-Nom:

    4 V/us

  • Subcategory:

    Instrumentation Amplifier

  • Supply Current-Max:

    0.75 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Voltage Gain-Max:

    10000

  • Voltage Gain-Min:

    1

  • Voltage Gain-Nom:

    10

  • Width:

    3.9 mm

INA128U Frequently Asked Questions (FAQs)

  • The maximum voltage that can be applied to the input pins is ±40V, but it's recommended to keep it within ±20V for optimal performance.
  • The gain of the INA128U is calculated by the ratio of the output voltage to the input voltage. The gain can be set by the external resistors Rg and Rf, according to the formula: Gain = (Rf/Rg) + 1.
  • The REF pin is used to set the reference voltage for the amplifier. It can be connected to a voltage reference or a resistive divider to set the output voltage range.
  • To reduce noise and oscillations, use a low-pass filter at the input, keep the input and output traces short and away from noise sources, and use a capacitor between the REF pin and ground to filter the reference voltage.
  • The maximum output current of the INA128U is ±20mA, but it's recommended to keep it below ±10mA for optimal performance and to prevent overheating.

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INA128U 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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