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ADR421ARZ - Analog Devices

Description: ADR421ARZ, Voltage Reference 2.497 to 2.503V, 0.13% 10mA 18V max. 8-Pin SOIC

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ADR421ARZ - Analog Devices - PCB symbol
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PCB Footprints
ADR421ARZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - R-8 (SOIC)
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3D Models
ADR421ARZ - Analog Devices - 3D model - Small Outline Packages - R-8 (SOIC)
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ADR421ARZ Details

  • Manufacturer Part Number:

    ADR421ARZ

  • 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:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    OUTPUT VOLTAGE CAN BE ADJUSTED OVER A +/-0.5% RANGE USING TRIM PIN

  • Analog IC - Other Type:

    THREE TERMINAL VOLTAGE REFERENCE

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    2.503 V

  • Output Voltage-Min:

    2.497 V

  • Output Voltage-Nom:

    2.5 V

  • 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

  • Supply Voltage-Max (Vsup):

    15 V

  • Supply Voltage-Min (Vsup):

    5 V

  • Surface Mount:

    YES

  • Temp Coef of Voltage-Max:

    10 ppm/°C

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Trim/Adjustable Output:

    YES

  • Voltage Tolerance-Max:

    0.12%

  • Width:

    3.9 mm

ADR421ARZ Frequently Asked Questions (FAQs)

  • A good PCB layout for the ADR421ARZ involves keeping the input and output traces separate, using a solid ground plane, and placing the device close to the power supply. Additionally, using a 4-layer PCB with a dedicated analog ground plane can help reduce noise and improve performance.
  • To ensure the ADR421ARZ operates within its specified temperature range, it's essential to provide adequate heat sinking and thermal management. This can be achieved by using a heat sink, ensuring good airflow, and keeping the device away from other heat sources.
  • The recommended input voltage range for the ADR421ARZ is 4.5V to 15V. The output voltage is regulated to 4.096V ± 0.4% (max) for input voltages between 4.5V and 15V. Operating outside this range may affect the output voltage accuracy and stability.
  • To minimize noise sensitivity, use a low-pass filter at the input, keep the input traces short and away from noise sources, and use a capacitor (e.g., 10nF) between the input and ground. Additionally, consider using a shielded enclosure and keeping the device away from high-frequency sources.
  • The maximum output current capability of the ADR421ARZ is 10mA. Exceeding this limit may cause the output voltage to droop or become unstable. Ensure that the output current is within the specified limit to maintain a stable output voltage.

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ADR421ARZ 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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