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AD8421ARMZ-R7 - Analog Devices

Description: Instrumentation Amplifiers 3nV/vHz noise Precision InAmp

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AD8421ARMZ-R7 - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - RM-08
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AD8421ARMZ-R7 - Analog Devices  - 3D model - Small Outline Packages - RM-08
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AD8421ARMZ-R7 Details

  • Manufacturer Part Number:

    AD8421ARMZ-R7

  • Source Url Status Check Date:

    2013-05-01 14:56:26.318

  • 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:

    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):

    0.0022 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:

    0.005%

  • 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:

    TSSOP

  • Package Equivalence Code:

    TSSOP8,.19

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Packing Method:

    TR, 7 INCH

  • 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

  • Voltage Gain-Nom:

    10

  • Width:

    3 mm

AD8421ARMZ-R7 Frequently Asked Questions (FAQs)

  • A good PCB layout for the AD8421 involves keeping the input and output traces separate, using a ground plane, and placing the device close to the analog signal sources. Additionally, it's recommended to use a 4-layer PCB with a dedicated analog ground plane and to keep the power supply traces away from the analog signal traces.
  • The gain resistor (Rg) value depends on the desired gain and the input signal amplitude. A higher Rg value results in higher gain, but also increases the noise gain. A good starting point is to use the recommended Rg value from the datasheet, and then adjust it based on the specific application requirements.
  • The AD8421 can handle input voltages up to ±25V, but it's recommended to limit the input voltage to ±20V to ensure reliable operation and prevent damage to the device.
  • The AD8421 has a built-in low-pass filter, but additional filtering may be necessary depending on the application. A good approach is to use a passive RC filter or an active filter with a cutoff frequency above the signal bandwidth to filter out high-frequency noise.
  • A good power supply decoupling scheme for the AD8421 involves using a 10uF ceramic capacitor in parallel with a 1uF ceramic capacitor, both connected between the power supply pins and the analog ground pin. This helps to filter out high-frequency noise and ensure stable operation.

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AD8421ARMZ-R7 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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