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INA818IDR - Texas Instruments

Description: 35-μV offset, 8-nV/√Hz noise, low-power, precision instrumentation amplifier

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INA818IDR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D0008A SOIC - 1.75 mm max height_A
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INA818IDR - Texas Instruments  - 3D model - Small Outline Packages - D0008A SOIC - 1.75 mm max height_A
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INA818IDR Details

  • Manufacturer Part Number:

    INA818IDR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Date Of Intro:

    2019-04-20

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Amplifier Type:

    INSTRUMENTATION AMPLIFIER

  • Average Bias Current-Max (IIB):

    0.002 µA

  • Bandwidth (3dB)-Nom:

    2 MHz

  • Bias Current-Max (IIB) @25C:

    0.0005 µA

  • Common-mode Reject Ratio-Min:

    110 dB

  • Input Offset Current-Max (IIO):

    0.002 µA

  • Input Offset Voltage-Max:

    35 µV

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.905 mm

  • Moisture Sensitivity Level:

    2

  • Neg Supply Voltage Limit-Max:

    -20 V

  • Neg Supply Voltage-Nom (Vsup):

    -15 V

  • Non-linearity-Max:

    0.0015%

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °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, 13 INCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.75 mm

  • Slew Rate-Nom:

    0.9 V/us

  • Supply Current-Max:

    0.52 mA

  • Supply Voltage Limit-Max:

    20 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Temperature Grade:

    AUTOMOTIVE

  • 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

  • Voltage Gain-Max:

    10000

  • Voltage Gain-Min:

    1

  • Width:

    3.895 mm

INA818IDR Frequently Asked Questions (FAQs)

  • The INA818IDR 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 also reduce noise. Consult the datasheet for a gain resistor selection table.
  • The REF pin is a reference voltage input that allows the INA818IDR 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.
  • To minimize noise, keep the input traces short and away from noise sources. Use a ground plane and decouple the power supply with capacitors. Place the INA818IDR close to the input signal source and use a shielded cable or twisted pair wiring to connect the input signals.
  • The typical settling time of the INA818IDR is around 10μs. This means that the amplifier takes around 10μs to settle to its final output value after a step change in the input signal. This settling time may affect applications that require fast signal processing or high-speed data acquisition.

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INA818IDR 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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