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INA281B3QDBVRQ1 - Texas Instruments

Description: Current Sense Amplifiers Automotive AEC-Q100, -4-V to 110-V, 1.3-MHz current sense amplifier 5-SOT-23 -40 to 125

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INA281B3QDBVRQ1 - Texas Instruments PCB footprint - SOT23 (5-Pin) - SOT23 (5-Pin) - DBV0005A  HEIGHT 1.45
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INA281B3QDBVRQ1 - Texas Instruments  - 3D model - SOT23 (5-Pin) - DBV0005A  HEIGHT 1.45
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INA281B3QDBVRQ1 Details

  • Manufacturer Part Number:

    INA281B3QDBVRQ1

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Mainland China, Philippines, Taiwan, Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Date Of Intro:

    2020-11-08

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Average Bias Current-Max (IIB):

    30 µA

  • Bias Current-Max (IIB) @25C:

    30 µA

  • Common Mode Voltage-Max:

    110 V

  • Common-mode Reject Ratio-Min:

    120 dB

  • Common-mode Reject Ratio-Nom:

    140 dB

  • Frequency Compensation:

    NO

  • Input Offset Voltage-Max:

    250 µV

  • JESD-30 Code:

    R-PDSO-G5

  • JESD-609 Code:

    e4

  • Length:

    2.9 mm

  • Low-Bias:

    NO

  • Low-Offset:

    YES

  • Micropower:

    NO

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    5

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LSSOP

  • Package Equivalence Code:

    TSOP5,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power:

    NO

  • Programmable Power:

    NO

  • Screening Level:

    AEC-Q100

  • Seated Height-Max:

    1.45 mm

  • Slew Rate-Nom:

    2.5 V/us

  • Supply Current-Max:

    2.25 mA

  • Supply Voltage Limit-Max:

    22 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

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

    30

  • Unity Gain BW-Nom:

    1000

  • Voltage Gain-Nom:

    100

  • Wideband:

    NO

  • Width:

    1.6 mm

INA281B3QDBVRQ1 Frequently Asked Questions (FAQs)

  • The maximum power dissipation of INA281B3QDBVRQ1 is 250mW. However, it's recommended to keep the power dissipation below 150mW to ensure reliable operation.
  • To minimize noise and ensure accurate measurements, it's recommended to follow good PCB layout practices such as separating analog and digital grounds, using a solid ground plane, and keeping sensitive analog signals away from noisy digital signals. Additionally, place the INA281B3QDBVRQ1 close to the sense resistor and use short, shielded cables to connect to the sense resistor.
  • The recommended sense resistor value for INA281B3QDBVRQ1 depends on the specific application and the desired current measurement range. However, a common value is 1mΩ to 10mΩ. A smaller sense resistor value will provide a higher current measurement range but may also increase noise and reduce accuracy.
  • The INA281B3QDBVRQ1 does not require calibration for accurate current measurements. However, it's recommended to perform a system-level calibration to account for any errors introduced by the sense resistor, PCB layout, and other system components. This can be done by measuring the current through the sense resistor using a known current source and adjusting the gain and offset of the INA281B3QDBVRQ1 accordingly.
  • The response time of the INA281B3QDBVRQ1 is typically around 1μs to 2μs, depending on the bandwidth setting. This means that the device can accurately measure current transients with rise times as fast as 1μs.

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INA281B3QDBVRQ1 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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