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MAX3485ECSA+ - Analog Devices

Description: MAX3485ECSA+, Line Transceiver, RS-485, RS-422 12 Mbit/s Differential, 3 → 3.6 V, 8-Pin SOIC

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MAX3485ECSA+ Details

  • Manufacturer Part Number:

    MAX3485ECSA+

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    8-SOIC_N-150_MIL

  • Package Description:

    SO-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:

    1999-04-01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • 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-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    1.75 mm

  • Supply Voltage-Max:

    3.6 V

  • Supply Voltage-Min:

    3 V

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • 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:

    35 ns

  • Width:

    3.9 mm

MAX3485ECSA+ Frequently Asked Questions (FAQs)

  • A good layout and routing practice for the MAX3485ECSA+ 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 connectors. Additionally, it's recommended to use a common-mode filter or a ferrite bead to reduce EMI emissions.
  • To ensure proper termination, the MAX3485ECSA+ requires a 120Ω differential termination resistor at the receiver end, and a 50Ω single-ended termination resistor at the transmitter end. Additionally, the transmission lines should be impedance-matched to the device's output impedance to prevent signal reflections.
  • The maximum cable length that can be used with the MAX3485ECSA+ depends on the specific application and the type of cable used. However, as a general rule, the maximum cable length should not exceed 100 meters for a 100Mbps data rate, and 50 meters for a 1Gbps data rate, to ensure reliable data transmission.
  • The MAX3485ECSA+ can be configured for half-duplex or full-duplex operation by setting the appropriate pins high or low. For half-duplex operation, the TXEN pin should be tied high, and for full-duplex operation, the TXEN pin should be tied low. Additionally, the device's internal registers can be programmed to enable or disable the transmitter and receiver accordingly.
  • The MAX3485ECSA+ requires a specific power-up and power-down sequencing to ensure reliable operation. The device's power supply should be powered up in the following sequence: VCC, VCCIO, and then VREF. During power-down, the sequence should be reversed. Additionally, the device's inputs should be held in a valid state during power-up and power-down to prevent unwanted transitions.

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MAX3485ECSA+ 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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For a full list of alternate parts for MAX3485ECSA+, check out Findchips.com