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ADM3485EARZ - Analog Devices

Description: ±15 kV ESD-Protected, 3.3 V,12 Mbps,EIA RS-485/RS-422 Transceiver

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ADM3485EARZ - Analog Devices - PCB symbol
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ADM3485EARZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - Lead Standard Small Outline Package [SOIC_N] Narrow Body (R-8)_a
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ADM3485EARZ - Analog Devices - 3D model - Small Outline Packages - Lead Standard Small Outline Package [SOIC_N] Narrow Body (R-8)_a
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ADM3485EARZ Details

  • Manufacturer Part Number:

    ADM3485EARZ

  • 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:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Differential Output:

    YES

  • Driver Number of Bits:

    1

  • High Level Input Current-Max:

    0.000001 A

  • Input Characteristics:

    DIFFERENTIAL SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-422; EIA-485

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Out Swing-Min:

    1.5 V

  • Output Low Current-Max:

    0.0025 A

  • 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

  • Receive Delay-Max:

    90 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    1.5 mA

  • Supply Voltage-Max:

    3.6 V

  • Supply Voltage-Min:

    3 V

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    40

  • Transmit Delay-Max:

    35 ns

  • Width:

    3.9 mm

ADM3485EARZ Frequently Asked Questions (FAQs)

  • A good PCB layout for the ADM3485EARZ involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. Additionally, using a shielded enclosure and keeping the device away from high-frequency sources can help minimize EMI.
  • To ensure reliable communication with the ADM3485EARZ in noisy environments, use a common-mode choke or a ferrite bead on the RS-485 bus, and consider using a shielded cable. Additionally, implement error-checking mechanisms, such as CRC or checksum, to detect and correct errors.
  • The maximum cable length supported by the ADM3485EARZ depends on the baud rate and the type of cable used. As a general guideline, the maximum cable length is approximately 4000 feet (1219 meters) at 9600 bps, and 1000 feet (305 meters) at 115.2 kbps.
  • To troubleshoot issues with the ADM3485EARZ, use a logic analyzer or oscilloscope to monitor the RS-485 bus signals, and check for signal integrity, noise, and distortion. Also, verify that the device is properly configured, and that the baud rate and data format match the requirements of the application.
  • Yes, the ADM3485EARZ can be used in a multi-drop configuration, where multiple devices are connected to the same RS-485 bus. However, ensure that the total bus length and the number of devices do not exceed the recommended maximum, and that each device is properly terminated to prevent signal reflections.

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ADM3485EARZ 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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