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MAX491CSD+ - Analog Devices

Description: MAX491CSD+, Line Transceiver, RS-485, RS-422 2.5Mbit/s Differential, 5V, 14-Pin SOIC

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MAX491CSD+ - Analog Devices - PCB symbol
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MAX491CSD+ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - MAX491CSD+
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MAX491CSD+ Details

  • Manufacturer Part Number:

    MAX491CSD+

  • 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, 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:

    2000-01-13

  • 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:

    70 °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:

    COMMERCIAL

  • 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

MAX491CSD+ Frequently Asked Questions (FAQs)

  • A good layout and routing practice for the MAX491CSD+ involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the traces between the device and the input/output connectors. Additionally, it's recommended to use a low-ESR capacitor for the VCC bypass and to place it as close as possible to the device.
  • The MAX491CSD+ requires a single 5V power supply, and it's recommended to use a low-dropout linear regulator or a switching regulator with a low noise output. The power sequencing requirement is to power up the VCC pin before the digital inputs, and to power down the VCC pin after the digital inputs.
  • The MAX491CSD+ can achieve a maximum data rate of 100Mbps, but the actual data rate may be limited by the quality of the transmission line, the signal integrity, and the receiver's capability. It's recommended to use a transmission line with a characteristic impedance of 100Ω and to terminate it with a 100Ω resistor to minimize reflections.
  • To troubleshoot common issues with the MAX491CSD+, start by checking the power supply voltage and ensuring it's within the recommended range. Then, verify the signal integrity by checking the signal amplitude, rise time, and fall time. Use an oscilloscope to visualize the signal and identify any anomalies. If the issue persists, check the device's temperature and ensure it's within the recommended operating range.
  • The MAX491CSD+ has a maximum junction temperature of 150°C, and it's recommended to keep the device temperature below 125°C for optimal performance. To ensure the device operates within the recommended temperature range, use a heat sink or a thermal pad, and ensure good airflow around the device. Additionally, avoid blocking the airflow around the device and ensure the PCB is designed to dissipate heat efficiently.

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MAX491CSD+ Overview

Use the download button to access the MAX491CSD+ 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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For a full list of alternate parts for MAX491CSD+, check out Findchips.com