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LTC491CS#PBF - Analog Devices

Description: Differential driver & receiver,LTC491CS LTC491CS#PBF, Line Transceiver, RS-485, RS-422 Differential, 5 V, 14-Pin SOIC

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LTC491CS#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC491CS#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - S_Package(14-Lead)
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LTC491CS#PBF - Analog Devices - 3D model - Small Outline Packages - S_Package(14-Lead)
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LTC491CS#PBF Details

  • Manufacturer Part Number:

    LTC491CS#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    PLASTIC, SOIC-14

  • Pin Count:

    14

  • Manufacturer Package Code:

    05-08-1610 (S14)

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Additional Feature:

    TRISTATABLE RECEIVER; 1 RECEIVER ACTIVE UNDER SHUTDOWN

  • Differential Output:

    YES

  • Driver Number of Bits:

    1

  • 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

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    COMPLEMENTARY

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • 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 Voltage-Max:

    5.25 V

  • Supply Voltage-Min:

    4.75 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • 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:

    50 ns

  • Width:

    3.9 mm

LTC491CS#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC491CS involves keeping the input and output traces short and separate, using a solid ground plane, and placing the input and output capacitors close to the device. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Also, ensure that the input and output capacitors are of high quality and have low ESR. Additionally, a small resistor (e.g., 10Ω) in series with the output can help dampen oscillations.
  • The maximum input voltage that the LTC491CS can handle is 15V. Exceeding this voltage can cause damage to the device. It's recommended to add input voltage protection, such as a voltage regulator or a TVS diode, to prevent overvoltage conditions.
  • The LTC491CS is rated for operation up to 125°C. However, the device's performance and reliability may degrade at high temperatures. It's recommended to derate the device's specifications and ensure proper thermal management, such as using a heat sink or a thermally conductive PCB material.
  • To troubleshoot issues with the LTC491CS, start by checking the input and output voltages, as well as the device's operating frequency. Use an oscilloscope to check for oscillations or noise on the output. Also, verify that the input and output capacitors are properly connected and of the correct value.

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LTC491CS#PBF 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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