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AD8420ARMZ - Analog Devices

Description: Analog Devices AD8420ARMZ Instrumentation Amplifier, 250μV Offset 250kHz GBW, CMMR 100dB, 2.7 → 36 V, 8-Pin MSOP

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AD8420ARMZ - Analog Devices - PCB symbol
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AD8420ARMZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - 8-Lead Mini Small Outline Package [MSOP] (RM-8)
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AD8420ARMZ - Analog Devices - 3D model - Small Outline Packages - 8-Lead Mini Small Outline Package [MSOP] (RM-8)
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AD8420ARMZ Details

  • Manufacturer Part Number:

    AD8420ARMZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Package Description:

    MSOP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    RM-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):

    0.027 µA

  • Bandwidth (3dB)-Nom:

    0.25 MHz

  • Common-mode Reject Ratio-Min:

    92 dB

  • Input Offset Current-Max (IIO):

    0.001 µA

  • Input Offset Voltage-Max:

    250 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

  • 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:

    1 V/us

  • Supply Current-Max:

    0.09 mA

  • Supply Voltage Limit-Max:

    18 V

  • Supply Voltage-Nom (Vsup):

    15 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • 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:

    1

  • Voltage Gain-Nom:

    10

  • Width:

    3 mm

AD8420ARMZ Frequently Asked Questions (FAQs)

  • The AD8420ARMZ 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.
  • The gain resistor (Rg) value depends on the desired gain and the input impedance of the amplifier. Use the formula Rg = (Rin * (G - 1)) / (G * (Rin + Rf)) to calculate the gain resistor value, where Rin is the input impedance, G is the desired gain, and Rf is the feedback resistor. Consult the datasheet for more information on gain resistor selection.
  • The AD8420ARMZ can handle input voltages up to ±10V, but the maximum input voltage is limited by the power supply voltage. Ensure that the input voltage does not exceed the power supply voltage to prevent damage to the amplifier.
  • To reduce noise and oscillations, use a low-pass filter at the input, add a capacitor in parallel with the gain resistor, and ensure that the power supply is well-regulated and decoupled. Also, use a solid ground plane, keep the input traces short, and avoid routing signals near noise sources.
  • Yes, the AD8420ARMZ can be used as a single-ended amplifier by connecting the negative input to ground and using the positive input as the signal input. However, keep in mind that the amplifier's common-mode rejection ratio (CMRR) will be degraded in single-ended mode.

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AD8420ARMZ 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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