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ADM3491EARZ - Analog Devices

Description: TIA/EIA RS-485/RS-422 compliant ±15 kV ESD protection on RS-485 input/output pins Data rates ADM3483E/ADM3488E: 250 kbps ADM3486E: 2.5 Mbps ADM3490E/ADM3491E: 12 Mbps Half- and full-duplex options Up to 32 nodes on the bus Receiver open-circuit, fail-safe design Low power shutdown current (ADM3483E/ADM3486E/ADM3491E only) Outputs high-Z when disabled or powered off Common-mode input range: −7 V to +12 V Thermal shutdown and short-circuit protection Industry-standard 75176 pinout 8-lead and 14

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ADM3491EARZ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - R-14 (SOIC)
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ADM3491EARZ Details

  • Manufacturer Part Number:

    ADM3491EARZ

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    LEAD FREE, MS-012-AB, SOIC-14

  • Pin Count:

    14

  • Manufacturer Package Code:

    R-14

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    DATA RATES UPTO 12 MBPS

  • Differential Output:

    YES

  • Driver Number of Bits:

    1

  • High Level Input Current-Max:

    0.000002 A

  • Input Characteristics:

    DIFFERENTIAL SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-422; EIA-485

  • JESD-30 Code:

    R-PDSO-G14

  • JESD-609 Code:

    e3

  • Length:

    8.65 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Out Swing-Min:

    1.5 V

  • Output Characteristics:

    3-STATE

  • Output Low Current-Max:

    0.0025 A

  • Output Polarity:

    COMPLEMENTARY

  • 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:

    120 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    2.2 mA

  • Supply Voltage-Max:

    3.6 V

  • Supply Voltage-Min:

    3 V

  • Supply Voltage-Nom:

    3.3 V

  • Supply Voltage1-Max:

    3.6 V

  • Supply Voltage1-Min:

    3 V

  • Supply Voltage1-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • 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):

    30

  • Transmit Delay-Max:

    35 ns

  • Width:

    3.9 mm

ADM3491EARZ Frequently Asked Questions (FAQs)

  • A good layout and routing practice is to keep the analog and digital grounds separate, use a solid ground plane, and keep the signal traces short and away from noise sources. Also, use a common mode choke or ferrite bead to filter the power supply lines.
  • Use a high-quality, low-ESR capacitor (e.g., 10uF ceramic) as close as possible to the VCC pin, and add a 100nF capacitor in parallel to filter high-frequency noise. Also, ensure the power supply is clean and regulated.
  • The ADM3491EARZ can support data rates up to 100 Mbps, but the actual achievable data rate depends on the system design, cable length, and noise environment.
  • Use an oscilloscope to check the signal integrity, and verify the signal levels, rise/fall times, and clock frequency. Also, check the power supply, ground, and decoupling capacitors. If issues persist, consult the datasheet and application notes or contact Analog Devices support.
  • Yes, the ADM3491EARZ is designed to support hot-swapping and redundancy. However, ensure that the system is designed to handle the power-on and power-off sequencing, and that the device is properly reset and initialized after a hot-swap event.

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ADM3491EARZ 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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Part Image ADM3491EARZ-REEL7 Analog Devices Inc

Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, CMOS, PDSO14