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ADR421BR - Analog Devices

Description: ANALOG DEVICES - ADR421BR - VOLTAGE REFERENCE, SERIES, 2.5V, NSOIC-8

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ADR421BR - Analog Devices - PCB symbol
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PCB Footprints
ADR421BR - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - R-08
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3D Models
ADR421BR - Analog Devices - 3D model - Small Outline Packages - R-08
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ADR421BR Details

  • Manufacturer Part Number:

    ADR421BR

  • Source Url Status Check Date:

    2013-05-01 14:56:47.644

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    MS-012AA, SOIC-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    R-8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    0

  • 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:

    e0

  • 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:

    2.501 V

  • Output Voltage-Min:

    2.499 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):

    240

  • 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:

    3 ppm/°C

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Tin/Lead (Sn85Pb15)

  • 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

ADR421BR Frequently Asked Questions (FAQs)

  • A good PCB layout for the ADR421BR involves keeping the input and output traces separate, using a solid ground plane, and placing the device close to the voltage regulator. Additionally, using a 4-layer PCB with a dedicated power plane and a dedicated ground plane can help reduce noise and improve performance.
  • To ensure the ADR421BR 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 ADR421BR is 4.5V to 15V. The output voltage is regulated to 2.5V ±1% for input voltages between 4.5V and 15V. Operating the device outside this range may affect the output voltage accuracy and stability.
  • To protect the ADR421BR from overvoltage and undervoltage conditions, consider using voltage surge protectors, such as transient voltage suppressors (TVS) or zener diodes, on the input line. Additionally, using a voltage regulator with built-in overvoltage protection can help prevent damage to the device.
  • The maximum output current capability of the ADR421BR is 10mA. Exceeding this current limit can cause the output voltage to droop or become unstable. To ensure stable operation, it's essential to keep the output current within the specified limit.

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ADR421BR 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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