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LTC2870CFE#PBF - Analog Devices

Description: RS-232 Interface IC RS232/RS485 Multiprotocol Trans w/ Int T

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LTC2870CFE#PBF Details

  • Manufacturer Part Number:

    LTC2870CFE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    05-08-1663 (EB)

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Differential Output:

    YES

  • Driver Number of Bits:

    2

  • High Level Input Current-Max:

    0.000125 A

  • Input Characteristics:

    DIFFERENTIAL SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-232; EIA-422; EIA-485

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e3

  • Length:

    9.7 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    2

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    70 °C

  • Out Swing-Min:

    1.5 V

  • Output Characteristics:

    3-STATE

  • Output Low Current-Max:

    0.003 A

  • Output Polarity:

    COMPLEMENTARY

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Equivalence Code:

    TSSOP28,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Receive Delay-Max:

    200 ns

  • Receiver Number of Bits:

    2

  • Seated Height-Max:

    1.2 mm

  • Supply Current-Max:

    0.005 mA

  • 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) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Transmit Delay-Max:

    70 ns

  • Width:

    4.4 mm

LTC2870CFE#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC2870CFE involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. A 4-layer PCB with a dedicated ground plane is recommended.
  • To ensure reliable communication, use a common mode choke or a ferrite bead to filter the differential signals, and keep the signal traces short and well-matched. Also, use a termination resistor at the receiving end to match the impedance of the transmission line.
  • The maximum cable length supported by the LTC2870CFE depends on the data rate and the type of cable used. As a general guideline, the maximum cable length is around 10 meters at 100 Mbps and 5 meters at 1 Gbps. However, this can be extended using repeaters or active cables.
  • To handle hot swapping with the LTC2870CFE, use a power switch or a hot swap controller to control the power sequencing. This ensures that the device is powered up and down safely, and prevents damage to the device or the system.
  • The LTC2870CFE has a maximum junction temperature of 125°C. To ensure reliable operation, keep the device temperature below 85°C by providing adequate heat sinking, using a thermal pad, and ensuring good airflow around the device.

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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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