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AD8421BRZ - Analog Devices

Description: Instrumentation Amplifier LowNoise SOIC8 Analog Devices AD8421BRZ, Instrumentation Amplifier, 25μV Offset 10MHz, R-RI, 5 → 36 V, 8-Pin SOIC

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AD8421BRZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - R-8 (SOIC)
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AD8421BRZ Details

  • Manufacturer Part Number:

    AD8421BRZ

  • Source Url Status Check Date:

    2013-05-01 14:56:26.341

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    R-8

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Amplifier Type:

    INSTRUMENTATION AMPLIFIER

  • Average Bias Current-Max (IIB):

    0.006 µA

  • Bandwidth (3dB)-Nom:

    10 MHz

  • Common-mode Reject Ratio-Min:

    93 dB

  • Input Offset Current-Max (IIO):

    0.0008 µA

  • Input Offset Voltage-Max:

    45 µV

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Neg Supply Voltage Limit-Max:

    -18 V

  • Neg Supply Voltage-Nom (Vsup):

    -15 V

  • Non-linearity-Max:

    0.005%

  • 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:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Slew Rate-Nom:

    35 V/us

  • Supply Current-Max:

    2.6 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Voltage Gain-Max:

    10000

  • Voltage Gain-Min:

    1

  • Voltage Gain-Nom:

    10

  • Width:

    3.9 mm

AD8421BRZ Frequently Asked Questions (FAQs)

  • The AD8421BRZ is a high-gain, high-impedance amplifier, so it's crucial to follow proper layout and placement guidelines to minimize noise and ensure optimal performance. Keep the input traces short and away from noise sources, use a solid ground plane, and place the amplifier close to the signal source. Also, ensure that the power supply decoupling capacitors are placed close to the amplifier.
  • The gain resistor (Rg) determines the gain of the amplifier. To choose the correct gain resistor, calculate the desired gain using the formula: Gain = (Rg / Rf) + 1, where Rf is the feedback resistor. Select a standard resistor value that meets your gain requirement, and ensure it's within the recommended range (1 kΩ to 100 kΩ).
  • The AD8421BRZ can handle input voltages up to ±10 V, but it's recommended to limit the input voltage to ±5 V to ensure optimal performance and prevent damage to the amplifier.
  • To filter out noise and interference, use a low-pass filter or a band-pass filter at the input stage. You can also use a ferrite bead or a common-mode choke to filter out high-frequency noise. Additionally, ensure that the power supply is well-regulated and decoupled to minimize noise.
  • The recommended power supply voltage for the AD8421BRZ is ±2.5 V to ±15 V, with a maximum current consumption of 1.5 mA. Ensure that the power supply is well-regulated and decoupled to minimize noise and ensure optimal performance.

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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