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INA281B3IDBVR - Texas Instruments

Description: Current Sense Amplifiers -4 to 100-V, 1-MHz current sense amplifier 5-SOT-23 -40 to 125

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PCB Footprints
INA281B3IDBVR - Texas Instruments PCB footprint - SOT23 (5-Pin) - SOT23 (5-Pin) - DBV0005A
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INA281B3IDBVR - Texas Instruments  - 3D model - SOT23 (5-Pin) - DBV0005A
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INA281B3IDBVR Details

  • Manufacturer Part Number:

    INA281B3IDBVR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    2020-08-31

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    TRANSCONDUCTANCE

  • 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:

    NO

  • 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:

    SOP5/6,.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

  • 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

  • Technology:

    BICMOS

  • 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

INA281B3IDBVR Frequently Asked Questions (FAQs)

  • The maximum voltage that can be applied to the input pins is 26.5V, which is the absolute maximum rating. However, for normal operation, the recommended maximum input voltage is 24V.
  • The gain error of the INA281 can be calculated using the formula: Gain Error (%) = (Vout/Vin - Gain) / Gain * 100, where Vout is the output voltage, Vin is the input voltage, and Gain is the specified gain of the device (e.g. 1, 2, 5, etc.).
  • The INA281's accuracy is affected by temperature, with a typical temperature coefficient of ±50 ppm/°C for the gain error and ±10 ppm/°C for the offset voltage. This means that the device's accuracy will degrade as the temperature increases or decreases from the nominal operating temperature.
  • Yes, the INA281 can be used with a single-supply voltage. However, the input common-mode voltage range is limited to VCC - 1.5V to VCC + 0.5V, where VCC is the supply voltage. This means that the input voltage must be within this range to ensure proper operation.
  • To minimize noise and interference with the INA281, it is recommended to follow good PCB layout practices, such as keeping the input traces short and away from noise sources, using a ground plane, and placing bypass capacitors close to the device. Additionally, it is recommended to use a shielded cable or twisted pair for the input connections.

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INA281B3IDBVR 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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Part Image INA281B3IDBVT Texas Instruments

Operational Amplifier, 1 Func, 250uV Offset-Max, BICMOS, PDSO5