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MAX491ESD+ - Analog Devices

Description: MAX491ESD+, Line Transceiver, RS-485, RS-422 2.5Mbit/s Differential, 4.75 → 5.25 V, 14-Pin SOIC

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MAX491ESD+ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - SO 14 pinout
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MAX491ESD+ - Analog Devices  - 3D model - Small Outline Packages - SO 14 pinout
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MAX491ESD+ Details

  • Manufacturer Part Number:

    MAX491ESD+

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    14-SOIC_N-150_MIL

  • Package Description:

    SOP-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:

    2000-01-13

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • 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:

    DIFFERENTIAL

  • 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

MAX491ESD+ Frequently Asked Questions (FAQs)

  • A good PCB layout for the MAX491ESD+ involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the signal sources. Additionally, using a shielded enclosure and minimizing the length of the input and output traces can help reduce EMI and noise.
  • To ensure proper biasing, make sure to connect the VCC pin to a stable 5V power supply, and the GND pin to a solid ground plane. Also, ensure that the input signals are within the recommended voltage range (0 to VCC) and that the output load is within the specified current limit (10mA).
  • The MAX491ESD+ is rated for operation over the industrial temperature range of -40°C to +85°C. However, it's recommended to derate the device's performance at extreme temperatures to ensure reliable operation.
  • While the MAX491ESD+ is a high-quality device, it's essential to evaluate its suitability for high-reliability or safety-critical applications. Consider factors such as fault tolerance, redundancy, and failure modes to ensure the device meets the required standards and regulations.
  • To troubleshoot issues with the MAX491ESD+, start by verifying the power supply and input signal integrity. Check for proper biasing, correct pin connections, and ensure that the device is not overheating. Use an oscilloscope to analyze the output waveform and identify any anomalies. Consult the datasheet and application notes for guidance on specific troubleshooting techniques.

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MAX491ESD+ 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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For a full list of alternate parts for MAX491ESD+, check out Findchips.com