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ADR391AUJZ-R2 - Analog Devices

Description: ADR391AUJZ-R2, Voltage Reference 2.5V 0.24% 5mA 18 V max. 5-Pin TSOT

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ADR391AUJZ-R2 - Analog Devices - PCB symbol
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PCB Footprints
ADR391AUJZ-R2 - Analog Devices PCB footprint - SOT23 (5-Pin) - SOT23 (5-Pin) - UJ-5 (TSOT)-ren1
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3D Models
ADR391AUJZ-R2 - Analog Devices - 3D model - SOT23 (5-Pin) - UJ-5 (TSOT)-ren1
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ADR391AUJZ-R2 Details

  • Manufacturer Part Number:

    ADR391AUJZ-R2

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSOT

  • Package Description:

    TSOT-23, 5 PIN

  • Pin Count:

    5

  • Manufacturer Package Code:

    UJ-5

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    THREE TERMINAL VOLTAGE REFERENCE

  • JESD-30 Code:

    R-PDSO-G5

  • JESD-609 Code:

    e3

  • Length:

    2.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    5

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    2.506 V

  • Output Voltage-Min:

    2.494 V

  • Output Voltage-Nom:

    2.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    VSSOP

  • Package Equivalence Code:

    TSOP5/6,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1 mm

  • Supply Voltage-Max (Vsup):

    15 V

  • Supply Voltage-Min (Vsup):

    2.8 V

  • Supply Voltage-Nom (Vsup):

    3 V

  • Surface Mount:

    YES

  • Temp Coef of Voltage-Max:

    25 ppm/°C

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

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

    30

  • Trim/Adjustable Output:

    NO

  • Voltage Tolerance-Max:

    0.24%

  • Width:

    1.6 mm

ADR391AUJZ-R2 Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate analog ground plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use a star topology for the power supply and keep the power traces away from the analog signals.
  • The ADR391AUJZ-R2 has an internal calibration circuit that sets the output voltage to 2.5V. No external calibration is required. However, it's essential to follow the recommended PCB layout and decoupling guidelines to ensure the output voltage remains stable and accurate.
  • A 10uF ceramic capacitor with a voltage rating of 10V or higher is recommended. Place the capacitor as close as possible to the VIN pin, with a maximum distance of 1mm. This helps to filter out high-frequency noise and ensure stable operation.
  • The ADR391AUJZ-R2 is rated for operation from -40°C to 125°C. However, the output voltage may drift by up to ±1.5% over the full temperature range. Ensure that your design takes into account this drift and any other temperature-related effects.
  • Use a soft-start circuit or a power-on reset circuit to ensure a controlled power-up sequence. This helps to prevent voltage spikes and transients that could damage the device. Additionally, consider adding a TVS diode or a transient voltage suppressor to protect against voltage surges.

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ADR391AUJZ-R2 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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