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AD8421ARMZ - Analog Devices

Description: 3 nV/√Hz, Low Power Instrumentation Amplifier 2.3 mA,±18 V−65°C to +150°C

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AD8421ARMZ - Analog Devices - PCB symbol
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PCB Footprints
AD8421ARMZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - RM-8_2025
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3D Models
AD8421ARMZ - Analog Devices - 3D model - Small Outline Packages - RM-8_2025
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AD8421ARMZ Details

  • Manufacturer Part Number:

    AD8421ARMZ

  • Source Url Status Check Date:

    2013-05-01 14:56:26.317

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    LFCSP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    RM-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):

    0.008 µA

  • Bandwidth (3dB)-Nom:

    10 MHz

  • Common-mode Reject Ratio-Min:

    80 dB

  • Input Offset Current-Max (IIO):

    0.003 µA

  • Input Offset Voltage-Max:

    86 µV

  • JESD-30 Code:

    S-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Neg Supply Voltage Limit-Max:

    -18 V

  • Neg Supply Voltage-Nom (Vsup):

    -15 V

  • Non-linearity-Max:

    0.001%

  • 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:

    TSSOP

  • Package Equivalence Code:

    TSSOP8,.19

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.1 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:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Voltage Gain-Max:

    10000

  • Voltage Gain-Min:

    1

  • Width:

    3 mm

AD8421ARMZ Frequently Asked Questions (FAQs)

  • The AD8421ARMZ 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 input signal source. Also, ensure that the power supply decoupling capacitors are placed close to the amplifier.
  • To optimize the gain and bandwidth of the AD8421ARMZ, you need to consider the input signal frequency, amplitude, and impedance. The gain can be adjusted by selecting the appropriate feedback resistors (Rf and Rg). For higher frequencies, use smaller values of Rf and Rg to reduce the gain and increase the bandwidth. Conversely, for lower frequencies, use larger values to increase the gain and reduce the bandwidth.
  • When selecting the input and feedback resistors (Rin and Rf) for the AD8421ARMZ, consider the input signal impedance, gain requirements, and noise performance. Choose Rin to match the input signal impedance, and select Rf to achieve the desired gain. Ensure that the resistor values are within the recommended range to maintain stability and minimize noise.
  • The AD8421ARMZ is specified to operate within a temperature range of -40°C to +125°C. Ensure that the device is operated within this range to maintain its performance and reliability. Exceeding the temperature range can lead to reduced performance, increased noise, and potentially even device failure.
  • The AD8421ARMZ has internal ESD protection, but it's still essential to follow proper handling and assembly procedures to prevent damage from electrostatic discharge. Use anti-static wrist straps, mats, and packaging materials, and ensure that the device is handled in a static-safe environment.

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AD8421ARMZ Overview

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To find more CAD model downloads similar to this part, try a partial part number search, like AD842, or try a keyword search, such as Instrumentation Amplifiers

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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