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AD8221BRZ - Analog Devices

Description: AD8221BRZ, Instrumentation Amplifier, 0.025mV Offset, 140dB CMRR, 8-Pin SOIC

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AD8221BRZ - Analog Devices - PCB symbol
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AD8221BRZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - (R-8)
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AD8221BRZ Details

  • Manufacturer Part Number:

    AD8221BRZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    ROHS COMPLIANT, MS-012AA, SOIC-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    R-8

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.33.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Amplifier Type:

    INSTRUMENTATION AMPLIFIER

  • Average Bias Current-Max (IIB):

    0.0004 µA

  • Bandwidth (3dB)-Nom:

    0.825 MHz

  • Common-mode Reject Ratio-Min:

    80 dB

  • Input Offset Current-Max (IIO):

    0.0004 µA

  • Input Offset Voltage-Max:

    25 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:

    0.001%

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °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:

    2 V/us

  • Supply Current-Max:

    1 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Temperature Grade:

    AUTOMOTIVE

  • 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:

    1000

  • Voltage Gain-Min:

    1

  • Voltage Gain-Nom:

    10

  • Width:

    3.9 mm

AD8221BRZ Frequently Asked Questions (FAQs)

  • The AD8221BRZ 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. Place the amplifier close to the signal source, use a ground plane, and keep the input traces short and shielded. Also, avoid running digital lines near the amplifier's inputs.
  • To choose the correct gain resistor (RG), you need to consider the desired gain, input impedance, and noise requirements. Use the gain equation provided in the datasheet to calculate the required RG value. You can also use the AD8221BRZ's gain calculator tool provided by Analog Devices to simplify the process.
  • The non-inverting amplifier configuration provides a higher input impedance and is suitable for high-impedance sources. The inverting amplifier configuration, on the other hand, provides a lower input impedance and is suitable for low-impedance sources. The choice of configuration depends on the specific application requirements and the characteristics of the signal source.
  • To ensure stability and prevent oscillations, follow the recommended layout and placement guidelines, use a compensation capacitor (CC) if necessary, and ensure that the amplifier's gain-bandwidth product is not exceeded. Also, avoid using long input traces and minimize the use of wire-wound resistors, which can introduce inductance and instability.
  • The AD8221BRZ has a maximum junction temperature of 150°C. Ensure reliable operation over temperature by providing adequate heat sinking, using a thermally conductive package, and avoiding high-power dissipation. Also, consider the thermal resistance of the package and the PCB when designing the system.

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AD8221BRZ Overview

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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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