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MAX491EESD+ - Analog Devices

Description: MAX491EESD+, Line Transceiver, RS-485, RS-422 2.5 Mbit/s Differential, 4.75 → 5.25 V, 14-Pin SOIC

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MAX491EESD+ - Analog Devices - PCB symbol
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MAX491EESD+ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - MAX 14 SO
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MAX491EESD+ - Analog Devices - 3D model - Small Outline Packages - MAX 14 SO
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MAX491EESD+ Details

  • Manufacturer Part Number:

    MAX491EESD+

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    14-SOIC_N-150_MIL

  • Package Description:

    0.150 INCH, LEAD FREE, MS-012B, SOIC-14

  • Pin Count:

    14

  • Manufacturer Package Code:

    14-SOIC_N-150_MIL

  • Country Of Origin:

    Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1995-09-23

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Additional Feature:

    1 RECEIVER ACTIVE UNDER SHUTDOWN; TRISTATABLE RECEIVER

  • 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:

    0.004 A

  • Output Polarity:

    COMPLEMENTARY

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP14,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Receive Delay-Max:

    150 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    0.5 mA

  • Supply Voltage-Max:

    5.25 V

  • Supply Voltage-Min:

    4.75 V

  • Supply Voltage-Nom:

    5 V

  • Supply Voltage1-Max:

    5.25 V

  • Supply Voltage1-Min:

    4.75 V

  • Supply Voltage1-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • 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

  • Transmit Delay-Max:

    60 ns

  • Width:

    3.9 mm

MAX491EESD+ Frequently Asked Questions (FAQs)

  • A good PCB layout practice for the MAX491EESD+ is to keep the analog and digital grounds separate, use a solid ground plane, and keep the input and output traces short and away from each other. Additionally, use a common-mode choke or ferrite bead on the input lines to filter out high-frequency noise.
  • To ensure proper power and decoupling, use a high-quality, low-ESR capacitor (e.g., 10uF ceramic) between the VCC and GND pins, and place it as close to the device as possible. Additionally, use a separate power plane for the analog and digital supplies, and ensure that the power supply is well-regulated and noise-free.
  • The maximum cable length that can be driven by the MAX491EESD+ depends on the specific application and the type of cable used. However, as a general rule, the MAX491EESD+ can drive cables up to 100 meters (330 feet) long, assuming a good quality, shielded twisted-pair cable with a characteristic impedance of 100 ohms.
  • To troubleshoot common issues with the MAX491EESD+, first check the power supply and decoupling to ensure they are proper. Then, verify that the input voltage and current are within the specified range. Use an oscilloscope to check the output voltage and waveform, and ensure that the output is not overloaded or short-circuited. Finally, check the device's thermal performance and ensure it is operating within the specified temperature range.
  • Yes, the MAX491EESD+ can be used in a hot-swap or hot-plug application, but it requires proper design and implementation to ensure reliable operation. The device has built-in overcurrent protection and thermal shutdown, which can help prevent damage during hot-swapping. However, it's essential to follow proper design guidelines and testing to ensure the device can withstand the hot-swap or hot-plug conditions.

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MAX491EESD+ Overview

Use the download button to access the MAX491EESD+ schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like MAX49, or try a keyword search, such as Line Driver or Receivers

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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MAX491EESD+ Alternates

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Part Image MAX491ECSD+T Analog Devices Inc

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Part Image MAX491EESD+ Maxim Integrated Products

Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, CMOS, PDSO14
Part Image MAX491ESD+ Maxim Integrated Products

Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, CMOS, PDSO14, 0.150 INCH, SOIC-14
Part Image MAX491EESD-T Maxim Integrated Products

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Part Image MAX491EESD Maxim Integrated Products

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For a full list of alternate parts for MAX491EESD+, check out Findchips.com