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MAX491ECSD+ - Analog Devices

Description: MAX491ECSD+, Line Transceiver, RS-485, RS-422 2.5Mbit/s Differential, 5 V, 14-Pin SOIC

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MAX491ECSD+ - Analog Devices - PCB symbol
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PCB Footprints
MAX491ECSD+ - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - S14+4
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3D Models
MAX491ECSD+ - Analog Devices - 3D model - Small Outline Packages - S14+4
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MAX491ECSD+ Details

  • Manufacturer Part Number:

    MAX491ECSD+

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    14-SOIC_N-150_MIL

  • Package Description:

    0.150 INCH, LEAD FREE, MS-012B, SOIC-14

  • Pin Count:

    14

  • Manufacturer Package Code:

    14-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:

    1995-09-23

  • 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:

    70 °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:

    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:

    60 ns

  • Width:

    3.9 mm

MAX491ECSD+ Frequently Asked Questions (FAQs)

  • A good PCB layout for the MAX491ECSD+ involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the analog signal sources. Additionally, it's recommended to use a low-ESR capacitor for the VCC bypass and to keep the input and output traces as short as possible.
  • The MAX491ECSD+ requires a single 5V power supply, and it's recommended to power the device from a low-noise, low-ripple source. The power sequencing requirements are not critical, but it's recommended to power the device after the analog signal sources are stable to prevent any potential latch-up conditions.
  • The maximum allowable input voltage for the MAX491ECSD+ is 5.5V, and it's not designed to handle overvoltage conditions. If the input voltage exceeds 5.5V, it may cause permanent damage to the device. It's recommended to use external protection circuitry, such as a voltage clamp or a zener diode, to prevent overvoltage conditions.
  • The MAX491ECSD+ has built-in EMI/RFI filtering, but it's still recommended to use external shielding and filtering to minimize the effects of EMI/RFI. A good EMI/RFI mitigation strategy involves using a metal shield around the device, keeping the input and output traces as short as possible, and using a common-mode choke or a ferrite bead on the input lines.
  • The thermal derating for the MAX491ECSD+ is typically around 5.5mW/°C above 25°C. As the device temperature increases, its performance may degrade, resulting in reduced accuracy, increased noise, and decreased bandwidth. It's recommended to keep the device temperature below 85°C to ensure optimal performance.

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MAX491ECSD+ Overview

Use the download button to access the MAX491ECSD+ schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like MAX49, or try a keyword search, such as Line Driver or Receivers

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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MAX491ECSD+ Alternates

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For a full list of alternate parts for MAX491ECSD+, check out Findchips.com