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INA2321EA/250 - Texas Instruments

Description: microPower, Single-Supply, CMOS Instrumentation Amplifier

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INA2321EA/250 - Texas Instruments - PCB symbol
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PCB Footprints
INA2321EA/250 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW (R-PDSO-G14)
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3D Models
INA2321EA/250 - Texas Instruments - 3D model - Small Outline Packages - PW (R-PDSO-G14)
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INA2321EA/250 Details

  • Manufacturer Part Number:

    INA2321EA/250

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Pin Count:

    14

  • 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):

    0.00001 µA

  • Bandwidth (3dB)-Nom:

    0.5 MHz

  • Bias Current-Max (IIB) @25C:

    0.00001 µA

  • Common-mode Reject Ratio-Min:

    80 dB

  • Input Offset Current-Max (IIO):

    0.00001 µA

  • Input Offset Voltage-Max:

    1000 µV

  • JESD-30 Code:

    R-PDSO-G14

  • JESD-609 Code:

    e4

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Non-linearity-Max:

    0.01%

  • Number of Functions:

    2

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP14,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Slew Rate-Nom:

    0.4 V/us

  • Supply Current-Max:

    0.14 mA

  • Supply Voltage Limit-Max:

    7.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Voltage Gain-Max:

    1000

  • Voltage Gain-Min:

    5

  • Voltage Gain-Nom:

    25

  • Width:

    4.4 mm

INA2321EA/250 Frequently Asked Questions (FAQs)

  • A good PCB layout for INA2321EA/250 involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the signal source to minimize noise. TI provides a recommended layout in the datasheet and application notes.
  • The gain resistor (Rg) value depends on the desired gain and the input signal range. TI provides a gain resistor calculator tool and application notes to help with the selection. A good starting point is to use the recommended Rg value in the datasheet and adjust based on the specific application requirements.
  • The INA2321EA/250 can handle input voltages up to ±650mV, but the absolute maximum rating is ±700mV. Exceeding this limit can damage the device. It's essential to ensure the input voltage stays within the recommended range to maintain accuracy and prevent damage.
  • To filter out noise and aliasing, use a low-pass filter (LPF) or a band-pass filter (BPF) before the INA2321EA/250 input. The filter's cutoff frequency should be set based on the signal bandwidth and the desired noise rejection. Additionally, consider using a shielded cable and a good grounding scheme to minimize electromagnetic interference (EMI).
  • The INA2321EA/250 has a built-in POR circuit that ensures the device is in a known state after power-up. The POR timing is typically around 2ms, but this can vary depending on the specific application and power supply characteristics. It's essential to ensure the power supply is stable before using the device.

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INA2321EA/250 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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