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INA121PA - Texas Instruments

Description: INA121PA, Instrumentation Amplifier, 72dB CMRR, 8-Pin PDIP

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PCB Footprints
INA121PA - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - P (R-PDIP-T8)
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3D Models
INA121PA - Texas Instruments  - 3D model - Dual-In-Line Packages - P (R-PDIP-T8)
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INA121PA Details

  • Manufacturer Part Number:

    INA121PA

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    8

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Amplifier Type:

    INSTRUMENTATION AMPLIFIER

  • Average Bias Current-Max (IIB):

    0.00005 µA

  • Bandwidth (3dB)-Nom:

    0.6 MHz

  • Bias Current-Max (IIB) @25C:

    0.00005 µA

  • Common-mode Reject Ratio-Min:

    106 dB

  • Input Offset Current-Max (IIO):

    5e-7 µA

  • Input Offset Voltage-Max:

    500 µV

  • JESD-30 Code:

    R-PDIP-T8

  • JESD-609 Code:

    e4

  • Length:

    9.81 mm

  • Neg Supply Voltage Limit-Max:

    -18 V

  • Neg Supply Voltage-Nom (Vsup):

    -15 V

  • Non-linearity-Max:

    0.002%

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP8,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Slew Rate-Nom:

    0.7 V/us

  • Subcategory:

    Instrumentation Amplifier

  • Supply Current-Max:

    0.53 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    NO

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Voltage Gain-Max:

    10000

  • Voltage Gain-Min:

    1

  • Voltage Gain-Nom:

    10

  • Width:

    7.62 mm

INA121PA Frequently Asked Questions (FAQs)

  • The INA121PA can handle input voltages up to ±40V, but it's recommended to keep the input voltage within ±20V for optimal performance and to prevent damage to the device.
  • To ensure accurate gain settings, make sure to use a precise resistor value for the gain-setting resistor (Rg) and ensure that the resistor is of high precision (e.g., 1% or better). Additionally, consider using a resistor network or a digital potentiometer for more precise gain control.
  • To minimize noise and interference, place the INA121PA close to the signal source, use a ground plane, and keep the input traces as short as possible. Also, avoid running digital signals near the INA121PA's analog signals, and use shielding or guard rings to protect the sensitive analog signals.
  • To handle EMI and RFI interference, use a shielded enclosure, add ferrite beads or chokes to the input lines, and consider using a common-mode filter or a differential filter to reject common-mode noise. Additionally, ensure good grounding and decoupling practices.
  • Decouple the power supply lines with a 10uF ceramic capacitor and a 100nF ceramic capacitor in parallel, placed as close to the INA121PA's power pins as possible. This helps to filter out noise and ripple on the power supply lines.

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INA121PA 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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