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LTC2873CUFD#TRPBF - Analog Devices

Description: Single-Bus RS485/RS232 Multiprotocol Transceiver with Switchable Termination

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LTC2873CUFD#TRPBF - Analog Devices - PCB symbol
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LTC2873CUFD#TRPBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - LTC2873CUFD#TRPBF
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LTC2873CUFD#TRPBF Details

  • Manufacturer Part Number:

    LTC2873CUFD#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-24

  • Pin Count:

    24

  • Manufacturer Package Code:

    05-08-1696

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    CAN ALSO BE CONFIGURED AS RS-485/422 TRANSCEIVER

  • Differential Output:

    YES

  • Driver Number of Bits:

    1

  • Input Characteristics:

    DIFFERENTIAL SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-232

  • JESD-30 Code:

    R-PQCC-N24

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Receive Delay-Max:

    200 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    0.8 mm

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    1.7 V

  • Supply Voltage-Nom:

    3.3 V

  • Supply Voltage1-Max:

    5.5 V

  • Supply Voltage1-Min:

    3 V

  • Supply Voltage1-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Transmit Delay-Max:

    3000 ns

  • Width:

    4 mm

LTC2873CUFD#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC2873CUFD involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. Additionally, it's recommended to use a 4-layer board with a dedicated layer for the analog signals, and to minimize the length of the traces between the device and the power supply.
  • To ensure reliable communication over the SPI interface, make sure to use a pull-up resistor on the SCK line, and a pull-down resistor on the SDI line. Also, ensure that the SPI clock frequency is within the recommended range of 1MHz to 10MHz, and that the slave select line is properly driven.
  • The maximum cable length for the RS-485 interface depends on the baud rate and the cable characteristics. As a general rule, the cable length should be limited to 4000 feet (1220 meters) at 115.2 kbps, and 1000 feet (305 meters) at 921.6 kbps. However, it's recommended to consult the RS-485 standard and perform signal integrity analysis to determine the maximum cable length for a specific application.
  • The thermal shutdown feature is designed to protect the device from overheating. If the device exceeds the maximum junction temperature, it will shut down and reset when the temperature drops below the reset threshold. To handle thermal shutdown, ensure good thermal design and heat sinking, and consider implementing a thermal monitoring and shutdown circuit in the system.
  • The recommended power-up sequence for the LTC2873CUFD is to power up the VCC supply first, followed by the VIO supply. This ensures that the internal voltage regulators are properly initialized and that the device is configured correctly.

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LTC2873CUFD#TRPBF 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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