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MAX14840EASA+ - Analog Devices

Description: 40Mbps, +3.3V, RS-485 Half-Duplex Transceiver

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MAX14840EASA+ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - 8 SO (S8+4)-1
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3D Models
MAX14840EASA+ - Analog Devices  - 3D model - Small Outline Packages - 8 SO (S8+4)-1
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MAX14840EASA+ Details

  • Manufacturer Part Number:

    MAX14840EASA+

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    8-SOIC_N-150_MIL

  • Package Description:

    ROHS COMPLIANT, SOP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    8-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:

    2010-03-02

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Differential Output:

    YES

  • Driver Number of Bits:

    1

  • Input Characteristics:

    DIFFERENTIAL SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-485

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Out Swing-Min:

    1.5 V

  • Output Low Current-Max:

    0.001 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Receive Delay-Max:

    25 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max:

    4 mA

  • Supply Voltage-Max:

    3.6 V

  • Supply Voltage-Min:

    3 V

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • 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:

    20 ns

  • Width:

    3.9 mm

MAX14840EASA+ Frequently Asked Questions (FAQs)

  • A good PCB layout for the MAX14840EASA+ 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 power supply. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
  • To ensure reliable communication over the RS-485 bus, make sure to use a twisted-pair cable, keep the cable length within the recommended specifications, and use termination resistors at both ends of the bus. Additionally, ensure that the transmitter and receiver are properly configured and that the bus is not overloaded with too many devices.
  • The maximum cable length supported by the MAX14840EASA+ depends on the data rate and the type of cable used. As a general rule, the maximum cable length is 4000 feet (1219 meters) at a data rate of 100 kbps, and 1000 feet (305 meters) at a data rate of 1 Mbps. However, it's recommended to consult the datasheet and perform tests to determine the maximum cable length for a specific application.
  • To handle hot-swapping of devices on the RS-485 bus, use a bus buffer or a repeater to isolate the bus from the device being hot-swapped. This prevents the bus from being disrupted and ensures that the other devices on the bus continue to operate normally.
  • The recommended power-up sequence for the MAX14840EASA+ is to power up the VCC supply first, followed by the VIO supply. This ensures that the device powers up correctly and prevents any potential damage to the device.

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MAX14840EASA+ 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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