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INA2181A4IDGST - Texas Instruments

Description: TEXAS INSTRUMENTS - INA2181A4IDGST - CURRENT SENSE AMPLIFIER, 350KHZ, VSSOP10

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INA2181A4IDGST Details

  • Manufacturer Part Number:

    INA2181A4IDGST

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Date Of Intro:

    2017-12-17

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Amplifier Type:

    OPERATIONAL AMPLIFIER

  • Architecture:

    VOLTAGE-FEEDBACK

  • Common Mode Voltage-Max:

    26 V

  • Common-mode Reject Ratio-Min:

    84 dB

  • Common-mode Reject Ratio-Nom:

    100 dB

  • Frequency Compensation:

    YES

  • Input Offset Voltage-Max:

    150 µV

  • JESD-30 Code:

    S-PDSO-G10

  • JESD-609 Code:

    e4

  • Length:

    3 mm

  • Low-Bias:

    NO

  • Low-Offset:

    NO

  • Micropower:

    YES

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    2

  • Number of Terminals:

    10

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP10,.19,20

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Packing Method:

    TR, 13 INCH

  • Peak Reflow Temperature (Cel):

    260

  • Power:

    NO

  • Programmable Power:

    NO

  • Seated Height-Max:

    1.1 mm

  • Slew Rate-Nom:

    2 V/us

  • Supply Current-Max:

    0.5 mA

  • Supply Voltage Limit-Max:

    6 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Unity Gain BW-Nom:

    105

  • Voltage Gain-Nom:

    200

  • Wideband:

    NO

  • Width:

    3 mm

INA2181A4IDGST 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 input voltage should be limited to the supply voltage (VCC) + 0.3V to ensure accurate measurements.
  • The gain of the INA2181 is programmable through the GAIN pin. The gain can be set to 1, 2, 4, 8, 16, 32, 64, or 128. The gain calculation is based on the voltage at the GAIN pin, which can be connected to VCC, GND, or a resistive divider. Refer to the datasheet for the gain calculation formula.
  • The REF pin is used to set the reference voltage for the internal ADC. The REF pin can be connected to an external reference voltage or to the internal 2.048V reference voltage. The REF pin voltage determines the full-scale range of the ADC.
  • To configure the INA2181 for bidirectional current measurement, connect the input pins (IN+ and IN-) to the sense resistor, and set the GAIN pin to the desired gain. The INA2181 will then measure the differential voltage across the sense resistor and provide a bidirectional current measurement.
  • The maximum data rate of the INA2181 is 35 kHz, which is the maximum sampling rate of the internal ADC. However, the data rate can be limited by the communication interface (SPI or I2C) and the system clock frequency.

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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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