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MAX491ESD+T - Analog Devices

Description: MAXIM INTEGRATED PRODUCTS - MAX491ESD+T - Transceiver RS422, RS485, 4.75V-5.25V supply, 1 Driver, NSOIC-14

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

  • Manufacturer Part Number:

    MAX491ESD+T

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    14-SOIC_N-150_MIL

  • Package Description:

    SOP, SOP14,.25

  • Pin Count:

    14

  • Manufacturer Package Code:

    14-SOIC_N-150_MIL

  • Reach Compliance Code:

    Compliant

  • 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:

    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

MAX491ESD+T Frequently Asked Questions (FAQs)

  • A good PCB layout for the MAX491ESD+T involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing the device close to the signal source. Additionally, using a shielded enclosure and minimizing the number of vias can help reduce EMI.
  • To ensure proper biasing, connect the VCC pin to a stable voltage source between 4.5V and 5.5V, and the GND pin to a solid ground plane. Also, ensure that the input signals are within the recommended common-mode voltage range and that the output is properly terminated.
  • The MAX491ESD+T can support cable lengths up to 100 meters (330 feet) at data rates up to 100 Mbps, depending on the cable quality and the specific application. However, it's recommended to consult the datasheet and perform signal integrity simulations to determine the maximum cable length for a specific application.
  • Yes, the MAX491ESD+T is designed to withstand hot-swapping and can tolerate the inrush currents associated with hot-plugging. However, it's essential to follow proper hot-swap design guidelines and ensure that the device is properly bypassed and decoupled to prevent damage.
  • To troubleshoot issues with the MAX491ESD+T, start by verifying the power supply and ground connections, then check the input and output signal integrity using an oscilloscope. Ensure that the device is properly terminated and that the cable length is within the recommended specifications. If issues persist, consult the datasheet and application notes for further guidance.

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MAX491ESD+T 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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