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AD8421ARZ-R7 - Analog Devices

Description: Instrumentation Amplifiers 3nV/vHz noise Precision InAmp

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AD8421ARZ-R7 - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - R-8 (SOIC)
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AD8421ARZ-R7 Details

  • Manufacturer Part Number:

    AD8421ARZ-R7

  • Source Url Status Check Date:

    2013-05-01 14:56:26.337

  • 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):

    0.008 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:

    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

  • Packing Method:

    TR, 7 INCH

  • 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) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    40

  • Voltage Gain-Max:

    10000

  • Voltage Gain-Min:

    1

  • Voltage Gain-Nom:

    10

  • Width:

    3.9 mm

AD8421ARZ-R7 Frequently Asked Questions (FAQs)

  • A good PCB layout for the AD8421ARZ-R7 involves keeping the input and output traces separate, using a ground plane, and placing the device close to the signal source. Additionally, it's recommended to use a 4-layer PCB with a dedicated analog ground plane to minimize noise and crosstalk.
  • To ensure proper biasing, connect the VPOS pin to a voltage source between 2.7V and 5.5V, and the VNEG pin to a voltage source between -2.7V and -5.5V. The voltage difference between VPOS and VNEG should be at least 2.5V. Additionally, ensure that the input common-mode voltage is within the recommended range of 0.5V to VPOS - 1.5V.
  • The AD8421ARZ-R7 can handle input voltages up to ±10V without damage. However, it's recommended to limit the input voltage to ±5V to ensure optimal performance and prevent damage to the device.
  • To filter out high-frequency noise, add a low-pass filter (LPF) or a band-pass filter (BPF) to the output of the AD8421ARZ-R7. The filter's cutoff frequency should be set based on the specific application requirements. Additionally, consider using a capacitor in parallel with the output resistor to further reduce high-frequency noise.
  • The recommended output load impedance for the AD8421ARZ-R7 is ≥1 kΩ. A higher load impedance can help improve the output voltage swing and reduce distortion. However, the load impedance should not be so high that it affects the output settling time.

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AD8421ARZ-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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